Silicone smear / tool-mark film is an appearance change on glass from uncured/partially cured silicone (or siloxane-rich by-products) deposited during sealant application and tooling at adjacent joints. It presents as optical veils, drag/corduroy tool lines, or finger/pad prints, often with preferential soil capture over time. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status on Forms: Treat uncured residues per site safety.

• Linear tool-mark bands parallel to the joint, or arcuate smears from finger/tool cleanup; pads/prints near corners and terminations.
• In specular view: oily/greasy sheen; under raking: soft, sheet-like veil with fine, parallel drag texture where tool passed.
• Often heavier at head/sill interfaces, frame returns, and mock-up bays; may accumulate dust/black streaking with age (“dirty halos”).

• Surface-catch class (MSRT)
• Typically SC-0 (film only).
• SC-1 (slight) may occur in aged, soil-loaded smears where residue cross-links with contaminants; SC-2 uncommon.
• Perform one light, non-marring pass on a revealed test patch (substrate) only; polymer stylus if a functional coating is suspected on the worked face. MSRT supports classification only.
• Visual signature
• Geometry tracks the joint: straight bands along sealant lines, corduroy/parallel striations in tool direction, finger arcs/ovals at starts/stops.
• No chip-flank sparkle (not mechanical scoring) and no discrete fused nodules/pits (not hot-particle peppering).
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, normal incidence and oblique sweep (~60°–120°); raking highlights sheen/drag differences. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). If fixed parallax indicates a between-pane film (cavity), classify CAT-5 by location (out of in-place scope) and refer.
• Mechanism cue (context)
• Evidence of recent sealant work, tooling sticks/finger tooling, masking tape lines, or silicone cleanup; residue strongest adjacent to wet joints.

• Assign CAT by visibility impact and MSRT after a controlled reveal on a small, representative area. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Optical veil/print only; SC-0 on clean substrate; visible mainly at angle/raking. Indicative relief: 0–10 µm (optical).
• CAT-2 (Light): Persistent thin film with slight SC-1 on aged/soil-loaded zones; limited impact at standard view. Indicative relief: ~10–40 µm.
• CAT-3 (Moderate): Broader tool-mark bands/dirty halos legible at standard distance with SC-1→SC-2 in worst patches. Indicative relief: ~40–120 µm.
• CAT-4 (Severe): Rare for silicone residue alone; if pronounced matte fields exist, consider mixed chemistry (alkali + siloxane + UV/soiling) and re-evaluate under applicable DSS. Indicative relief: ~120–300 µm+.
• CAT-5 (by condition/location): Between-pane/inaccessible by parallax, integrity indicators (active cracks, pane movement), or confirmed functional-coating loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” film removal during classification.

• vs. Butyl/PIB/IG sealant smear (R.01.02): PIB/butyl smears are tackier, darker, and can string; silicone reads oily/iridescent with lighter, clear veils.
• vs. Silane/siloxane migration halo (Ch.06.01): Migration halos align with masonry treatment geometry/weep paths; silicone tool-marks track the joint on the glass face and show corduroy drag.
• vs. Hydrophobic coating mismatch (Ch.06.02): Mismatch shows sharp wetting-behavior edges across open fields; silicone smears sit adjacent to joints with tooling direction visible.
• vs. Mechanical swirls (M.02.01): Swirls display arcs/tracks with edge sparkle; silicone smears are sheet-like veils without chip-flank cues.
• vs. General detergent/soot films (R.04): Those films are broad/uniform and clear more readily at reveal; silicone smears persist in bands/prints near joints.

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; include raking macros resolving drag/corduroy and finger/tool prints; add context frames (fresh joints, masking, tools). Record distance/angle in-frame.
2. MSRT result: One light, non-marring pass on a clean test patch within the smear; record SC-class (SC-0/SC-1/SC-2). Polymer stylus if a functional coating is suspected.
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.01.01 Silicone Smear / Tool-Mark Film — Joint-adjacent veil/drag lines on surface #___; post-reveal test patch reads [SC-0/SC-1]; visible at [12/36/72 in] under VIS geometry. Morphology: oily sheen, corduroy tool marks, finger/pad prints; no chip-flank sparkle, no discrete pepper. Classification: CAT-[1/2/3/4] by visibility and SC-class; CAT-5 if between-pane, integrity cues, or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

Butyl/PIB/IG sealant smear is an appearance change on glass from polyisobutylene (PIB) primary seal or butyl-based edge sealants transferred during IGU handling, glazing, or service. It presents as dark, tacky smears/bands, often edge-parallel, with possible stringing and particulate catch. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status on Forms: Treat tacky residues per site safety.

• Edge-parallel bands or finger/hand prints near spacer lines, setting blocks, and corner keys.
• Dark, tarry look in specular; tacky to the touch (do not touch—document visually).
• May show fine grit embedded along wipe trails; stringers from contact and pull-away.

• Surface-catch class (MSRT)
• Typically SC-0 (film only) on the clean substrate once residue is truly lifted.
• Avoid MSRT across active tacky smear; if a small test patch is safely cleaned without abrasion, confirm substrate SC-0 there.
• Use polymer stylus if a functional coating is suspected on the worked face. MSRT supports classification only.
• Visual signature
• Dark, continuous smear with drag edges, stringers, and particulate catch; geometry tracks the IGU edge/spacer line or handling grip points.
• No chip-flank sparkle (not mechanical scoring); no discrete fused nodules/pits (not hot-particle).
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, normal incidence and oblique sweep (~60°–120°). Raking highlights drag edges, stringing, and embedded grit. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). If smear is observed inside the cavity (by parallax on #2/#3), classify CAT-5 by location (out of in-place scope) and refer.
• Mechanism cue (context)
• Fresh glazing/IGU install, setting/adjustment near edges, sealant squeeze-out, shop handling; proximity to spacer joints and PIB rolls on-site.

• Assign CAT by visibility impact at acceptance geometry after a controlled reveal test confirms substrate SC-0 on a small patch. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Optical/tarry smear only; once properly lifted, substrate SC-0; visibility mainly at angle/raking. Indicative relief: 0–10 μm (optical).
• CAT-2 (Light): Persistent thin tar veil that resists simple reveal; localized soil catch increases visibility at standard view; substrate SC-0 at a clean test patch. Indicative relief: ~10–40 μm (film).
• CAT-3 (Moderate): Broad edge bands/prints legible at standard distance due to thicker smear + soil loading; SC-0 on substrate where truly cleaned. Indicative relief: ~40–120 μm (film stack).
• Reclassify when: Any modeled micro-texture or SC-class > 0 remains on substrate after true residue removal → evaluate under chemical etch families (Ch.04/.05) or mechanical if present.
• CAT-5 (by condition/location): Between-pane/inaccessible by parallax, integrity indicators (active cracks, pane movement), or confirmed functional-coating loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” removal during classification.

• vs. Silicone smear (R.01.01): PIB/butyl is darker, tar-like, tacky, often strings; silicone is oily/iridescent, lighter, with corduroy tool lines.
• vs. Silane/siloxane migration (Ch.06.01): Migration halos align with masonry treatment geometry; PIB/butyl smears align with IGU edges/spacers and handling points.
• vs. Mineral staining (Ch.03.02): Mineral veils are lighter and non-tacky; PIB/butyl is dark/tacky, captures particulates.
• vs. Coating anomalies (Co-family): Factory coating issues reside on #2/#3 and present as sheen/color shifts without tack; PIB/butyl shows tarry smear on the exposed face unless inside the cavity (then CAT-5).
• vs. Asphalt/tar transfer (R.01.04): Asphalt/bitumen is darker-brown/black, often odoriferous, linked to roofing or paving; PIB/butyl is commonly edge-parallel at IGU zones.

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; include raking macros resolving drag edges, stringers, and particulate catch; add context frames (IGU spacer line, setting blocks, handling points). Record distance/angle in-frame.
2. MSRT result (substrate only): After lifting a small test patch without abrasion, perform one light, non-marring pass on the clean substrate; record SC-class (expect SC-0). Avoid stylus over active tack.
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.01.02 Butyl/PIB/IG Sealant Smear — Edge-parallel dark/tacky smear with stringers/particulate catch on surface #___; post-reveal test patch shows substrate SC-0; visible at [12/36/72 in] under VIS geometry. Morphology: tarry drag, edge tracking, embedded grit; no chip-flank sparkle, no discrete pepper. Classification: CAT-[1/2/3] by visibility (film-only). CAT-5 if between-pane by parallax, or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

Polysulfide/polyurethane smear is an appearance change on glass from two-part polysulfide or moisture-cure polyurethane (PU) glazing/sealants transferred during application, tooling, masking removal, handling, or squeeze-out. It presents as amber-to-grey translucent veils, elastic drag tails/strings, and soil-laden bands adjacent to joints and corners. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status. Treat uncured chemistries per site safety.

• Joint-parallel bands and corner blooms where masking was lifted or squeeze-out was tooled; finger/cloth arcs at starts/stops.
• Amber (fresh polysulfide) → brown/grey with age; PU often appears straw to dark grey, can gloss in specular view.
• Elastic “drag tails” or stringers at wipe ends; preferential soil capture yields dirty halos over time.

• Surface-catch class (MSRT)
• Typically SC-0 (film only) on clean substrate once residue is truly lifted.
• Avoid MSRT across active/elastic smear; if a small test patch is safely cleaned without abrasion, confirm substrate SC-0 there.
• Use a polymer stylus if a functional coating is suspected on the worked face. MSRT supports classification only.
• Visual signature
• Joint-tracking geometry with drag/corduroy lines; elastic tails and stringers from pull-away; amber/grey veil that darkens with age/soil.
• No chip-flank sparkle (not mechanical scoring); no discrete fused nodules/pits (not hot-particle).
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, normal incidence and oblique sweep (~60°–120°); raking reveals drag texture, stringers, and soil catch. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). If smear appears inside the IGU cavity (by parallax on #2/#3), classify CAT-5 by location (out of in-place scope) and refer.
• Mechanism cue (context)
• Evidence of glazing/sealant work, masking lines, tooling sticks, squeeze-out cleanup, or fresh cartridges/mix heads near the affected zone.

• Assign CAT by visibility impact at acceptance geometry after a controlled reveal test confirms substrate SC-0 on a small patch. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Thin optical veil/print; SC-0 on clean substrate; visibility mostly at angle/raking. Indicative relief: 0–10 μm (optical).
• CAT-2 (Light): Persistent thin smear with soil loading legible at standard view; substrate SC-0 at a clean test patch. Indicative relief: ~10–40 μm (film).
• CAT-3 (Moderate): Broader bands/corner blooms with stringers/dirty halos visible at standard distance; SC-0 on substrate where truly cleaned. Indicative relief: ~40–120 μm (film stack).
• Reclassify when: After true residue removal, any modeled micro-texture or SC-class > 0 remains on substrate → evaluate under chemical etch (Ch.04/.05) or mechanical families as indicated.
• CAT-5 (by condition/location): Between-pane/inaccessible by parallax, integrity indicators (active cracks, pane movement), or confirmed functional-coating loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A §6 at 12/36/72 in. Do not abrade to “force” film removal during classification.

• vs. Silicone smear (R.01.01): Silicone reads oily/iridescent, lighter, with fine corduroy; polysulfide/PU reads amber/grey, more tarry, with elastic tails and strong soil catch.
• vs. Butyl/PIB smear (R.01.02): PIB is darker, very tacky, edge-line tracking at spacers; polysulfide/PU often adjacent to weatherseal joints and masking lines, not spacer lines.
• vs. Hydrophobic mismatch (Ch.06.02): Mismatch shows sharp wetting-behavior edges across open fields; polysulfide/PU smears hug joints and lack crisp wetting boundaries.
• vs. Mineral staining (Ch.03.02): Mineral veils are lighter, non-elastic, and follow spray/run geometry; polysulfide/PU shows joint-conforming bands with elastic stringers.
• vs. Coating anomalies (Co-family): Factory coating issues are sheen/color changes, typically #2/#3 faces; polysulfide/PU is field-applied residue on exposed faces, unless parallax shows cavity (then CAT-5).

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; include raking macros resolving drag texture, elastic tails, and soil catch; add context frames (masking lines, tools, cartridges). Record distance/angle in-frame.
2. MSRT result (substrate only): After lifting a small test patch without abrasion, perform one light, non-marring pass on the clean substrate; record SC-class (expect SC-0). Avoid stylus over active elastic residue.
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.01.03 Polysulfide / Polyurethane Smear — Joint-adjacent amber/grey smear with elastic drag tails on surface #___; post-reveal test patch shows substrate SC-0; visible at [12/36/72 in] under VIS geometry. Morphology: drag/corduroy, stringers, dirty halos; no chip-flank sparkle, no discrete pepper. Classification: CAT-[1/2/3] by visibility (film-only). CAT-5 if between-pane by parallax, or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

Mastic/bitumen/tar transfer is an appearance change on glass from bituminous products (roofing asphalt, waterproofing mastics, tar-based adhesives/primers) contacting the surface during construction, roofing, façade waterproofing, or logistics. It presents as dark brown–black, tacky smears/bands, often edge- or frame-adjacent, with drag strings and heavy particulate/soot capture. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status. Treat active tack/residues per site safety.

• Thick, tarry bands or hand/finger prints near roof lines, flashing interfaces, waterproofing joints, hoist points, or material staging paths.
• In specular: high-contrast dark smear; in raking: viscous drag fronts, ropey strings, embedded grit, lint.
• Heat/sun can soften/flow residue, creating sags/legs below the origin.

• Surface-catch class (MSRT)
• SC-0 on the clean glass substrate once residue is truly lifted (non-etch).
• Do not run MSRT across active tack; if a small test patch is safely cleaned without abrasion, confirm substrate SC-0 there.
• Use polymer stylus if a functional coating is suspected on the worked face. MSRT supports classification only.
• Visual signature
• Opaque, dark brown–black smear with ropey edges, stringers, and heavy soil/soot catch; may show heat flow legs.
• No chip-flank sparkle (not mechanical scoring); no discrete fused nodules/pits (not hot-particle peppering).
• Viewing / lighting
• Evaluate clean & dry surroundings at 12 / 36 / 72 in, normal incidence and oblique sweep (~60°–120°). Use raking to highlight drag fronts, stringing, and embedded grit. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). If residue is observed inside an IGU cavity (by parallax on #2/#3), classify CAT-5 by location (out of in-place scope) and refer.
• Mechanism cue (context)
• Nearby roofing/tar kettle work, bituminous membranes, flashing/seal courses, waterproofing primers, hoisting slings or gloved handling transferring tar.

• Assign CAT by visibility impact under VIS geometry after a controlled reveal test confirms substrate SC-0 on a small patch. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Thin optical smear; SC-0 on clean substrate; mainly angle/raking visible. Indicative relief: 0–10 μm (optical film).
• CAT-2 (Light): Persistent tar veil with soil/soot loading legible at standard view; SC-0 on substrate at test patch. Indicative relief: ~10–40 μm (film).
• CAT-3 (Moderate): Broad/opaque bands, ropey strings, heat-flow legs visible at standard distance; SC-0 on substrate where truly cleaned. Indicative relief: ~40–120 μm (film stack).
• Reclassify when: After true residue removal, any modeled micro-texture or SC-class > 0 persists on substrate → evaluate under chemical etch (Ch.04/.05) or mechanical families as indicated.
• CAT-5 (by condition/location): Between-pane/inaccessible by parallax, integrity indicators (active cracks, pane movement), or confirmed functional-coating loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” removal during classification.

• vs. Butyl/PIB smear (R.01.02): PIB is usually edge-line/parallels spacers, tacky but less opaque; bitumen/tar is darker, more odoriferous, and often heat-flowed.
• vs. Polysulfide/PU smear (R.01.03): Polysulfide/PU tends amber/grey, shows elastic tails; tar is brown-black, more ropey with soot catch and heat sag.
• vs. Silicone smear (R.01.01): Silicone reads oily/iridescent, lighter, with corduroy tool lines; tar is opaque/dark with grit capture.
• vs. Mineral staining/etch (Ch.03): Mineral films are light/whitish and non-tacky; tar is dark/tacky, often with odor and particulate embed.
• vs. Coating anomalies (Co-family): Manufacturing rub/patchiness shows sheen/color shift on #2/#3 without tack or odor; tar is field residue on exposed faces, unless parallax shows cavity (CAT-5).

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; include raking macros resolving ropey edges, stringers, grit embed, and any heat-flow legs; add context frames (roofing/waterproofing work zones). Record distance/angle in-frame.
2. MSRT result (substrate only): After lifting a small test patch without abrasion, perform one light, non-marring pass on the clean substrate; record SC-class (expect SC-0). Avoid stylus over active tack.
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.01.04 Mastic / Bitumen / Tar Transfer — Dark brown–black, tacky smear with ropey edges/stringers on surface #___; post-reveal test patch shows substrate SC-0; visible at [12/36/72 in] under VIS geometry. Morphology: opaque tar bands, grit embed, heat-flow legs; no chip-flank sparkle, no discrete pepper. Classification: CAT-[1/2/3] by visibility (film-only). CAT-5 if between-pane by parallax, or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

Adhesive label/sticker ghost is an appearance change on glass caused by pressure-sensitive adhesive (PSA) remnants or plasticizer transfer that remain after label/tape/film removal. It presents as a lens-shaped halo or rectilinear patch at the former label footprint, often with wipe-edge overlaps from attempted cleanups. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status on Forms: Handle active residues per site safety—do not touch; document visually.

• Footprint-bounded geometry (round/oval lens, square/rectangle, die-cut outline) centered where a label was placed.
• Soft optical veil in specular view; directional wipe arcs and overlap lines may surround the footprint from partial removal attempts.
• Edges can appear slightly darker (soil catch) or show tide-line rings where solvent/adhesive remover dried.

• Surface-catch class (MSRT)
• Expect SC-0 on the clean glass substrate once true PSA residue is lifted (non-etch).
• If a strong remover or heat was used excessively, a very slight SC-1 may be observed (converted film or shallow texture) within the footprint.
• Perform one light, non-marring pass on a small revealed test patch (substrate), not over gummy islands. Use polymer stylus if a functional coating is suspected. MSRT supports classification only.
• Visual signature
• Clear footprint geometry matching a typical label (lens/rectangle with rounded corners); wipe vectors and overlap edges adjacent to the footprint.
• No chip-flank sparkle (not mechanical scoring); no discrete pits/nodules (not hot-particle peppering).
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, normal incidence and oblique sweep (~60°–120°); use raking light macros to reveal veil, edges, and overlap lines. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). If fixed parallax indicates a between-pane label (IGU cavity), classify CAT-5 by location (out of in-place scope) and refer.
• Mechanism cue (context)
• Presence of removed backings, label fragments, adhesive-remover products, or inventory/inspection stickers on adjacent frames or glass.

• Assign CAT by visibility impact at acceptance geometry and MSRT on a small revealed test patch. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Optical ghost only; substrate SC-0 after true lift; visible mainly at angle/raking. Indicative relief: 0–10 µm (optical).
• CAT-2 (Light): Persistent thin film within footprint with slight SC-1 (aged/converted PSA or over-treated with hot/strong remover); limited impact at standard view. Indicative relief: ~10–40 µm.
• CAT-3 (Moderate): Broad, high-contrast footprint with dirty tide line and SC-1→SC-2 at interior (uncommon; suggests chemical interaction beyond simple PSA). Indicative relief: ~40–120 µm.
• Reclassify when: After true residue removal, any modeled micro-texture or SC-class > 0 remains on substrate → evaluate under Ch.04.02 Adhesive remover staining or Ch.04.03 Degreaser/alkaline burn as applicable.
• CAT-5 (by condition/location): Between-pane/inaccessible by parallax, integrity indicators (active cracks/pane movement), or confirmed functional-coating loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” film removal during classification.

• vs. Protective film adhesive residue (R.01.06): Film residues often cover larger areas with edge-peel scallops; label ghosts are small, discrete, and match common label dies.
• vs. Adhesive remover staining (Ch.04.02): Remover staining shows directional wipe veils/overlap lines extending beyond the footprint; a true label ghost should center on the label geometry with substrate SC-0 after proper lift.
• vs. Mineral staining (Ch.03.02): Mineral veils align to spray/runs and are non-tacky; label ghosts track label shape and installation height/pattern.
• vs. Silicone smear (R.01.01): Silicone smears run parallel to joints with tool-mark corduroy; label ghosts are discrete islands with clean boundaries.
• vs. Coating anomalies (Co-family): Factory coating issues lack label geometry and often sit on #2/#3; label ghosts are field-applied residue on the exposed face, unless cavity-side (then CAT-5).

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; include raking macros of the footprint interior and edge/overlap lines; add context frames (label fragments, remover products). Record distance/angle in-frame.
2. MSRT result (substrate only): After lifting a small test patch without abrasion, perform one light, non-marring pass on the clean substrate; record SC-class (expect SC-0).
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.01.05 Adhesive Label / Sticker Ghost — Footprint-bounded optical veil matching [round/oval/rectangular] label on surface #___; post-reveal test patch shows substrate SC-0; visible at [12/36/72 in] under VIS geometry. Morphology: soft veil, tide-line edge, wipe overlaps; no chip-flank sparkle, no discrete pepper. Classification: CAT-[1/2/3] by visibility and SC-class; CAT-5 if between-pane, integrity cues, or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

Protective film adhesive residue (aged) is an appearance change on glass from construction/transport protection films whose pressure-sensitive adhesive (PSA) or plasticizers remain after removal—especially when films were over-aged, UV/heat exposed, or removed in cold. It presents as broad veils, edge-peel scallops, adhesive islands/strings, and tide-line halos matching the former film footprint. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status. Treat active residues per site safety.

• Panel-sized haze/veil with regular scalloped edges where film lifted in arcs; corner “ears” from diagonal pulls.
• Adhesive islands/strings scattered across the field; grid/print-through if the film had a scrim or printed backer.
• Tide-line rings where solvents/water dried during attempted removal; heavier near sun-exposed elevations.

• Surface-catch class (MSRT)
• Expect SC-0 on the clean glass substrate once true adhesive is lifted (non-etch).
• SC-1 (slight) may appear where PSA cross-linked (UV/heat) or was over-worked with aggressive removers, leaving very shallow micro-texture. SC-2 is uncommon.
• Perform one light, non-marring pass on a small revealed test patch (substrate), not over gummy remnants. Use polymer stylus if a functional coating is suspected. MSRT supports classification only.
• Visual signature
• Large, uniform veil bounded by scalloped/serrated edges, often with peel arcs and overlap “flags.”
• Adhesive islands (clear/amber dots), stringers, and die-line ghosting from film printing.
• No chip-flank sparkle (not mechanical), no discrete fused nodules/pits (not hot-particle).
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, normal incidence and oblique sweep (~60°–120°); use raking light macros to resolve veil interiors, edge scallops, and islands/strings. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). If parallax shows residue inside an IGU cavity (#2/#3), classify CAT-5 by location (out of in-place scope) and refer.
• Mechanism cue (context)
• Evidence of protective films/backer scraps, release-liner trash, heat/UV exposure notes, cold-weather pulls, or aggressive solvent use during removal.

• Assign CAT by visibility impact at acceptance geometry and MSRT on a revealed test patch. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Optical veil or island ghosting only; substrate SC-0 after true lift; visible mainly at angle/raking. Indicative relief: 0–10 μm (optical).
• CAT-2 (Light): Persistent thin PSA film within footprint with SC-1 (aged/cross-linked); limited impact at standard view. Indicative relief: ~10–40 μm.
• CAT-3 (Moderate): Broad panel-wide haze with dirty tide-lines, scallop edges legible at standard distance; SC-1 → SC-2 in worst islands. Indicative relief: ~40–120 μm.
• Reclassify when: After true residue removal, any modeled micro-texture or SC-class > 0 persists on the substrate → evaluate under Ch.04.02 Adhesive remover staining (solvent bloom) or Ch.04.03 Degreaser/alkaline burn as indicated.
• CAT-5 (by condition/location): Between-pane/inaccessible by parallax, integrity indicators (active cracks/pane movement), or confirmed functional-coating loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” removal during classification.

• vs. Adhesive label/sticker ghost (R.01.05): Labels are small, discrete shapes; protective film residues are large/panel-scale with edge scallops and pull arcs.
• vs. Silicone smear (R.01.01): Silicone tracks joints with tool-mark corduroy; film residue covers open fields with scalloped boundaries.
• vs. Butyl/PIB smear (R.01.02): PIB is dark/tacky and edge-line at spacers; film residue is clear/amber veil often panel-wide.
• vs. Mineral staining (Ch.03.02) / mineral etch (Ch.03.03): Mineral phenomena follow spray arcs/runs and may show ring halos; film residue follows film geometry with uniform interior veil.
• vs. Hydrophobic coating mismatch halo (Ch.06.02): Mismatch shows wetting-behavior edges; film residue shows scalloped peel patterns and adhesive islands; wetting contrast may be incidental.

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; include raking macros of edge scallops, islands/strings, tide-lines; add context frames (film scraps, release liners). Record distance/angle in-frame.
2. MSRT result (substrate only): After lifting a small test patch without abrasion, perform one light, non-marring pass on the clean substrate; record SC-class (expect SC-0 unless aged conversion). Avoid stylus over active gummy residue.
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.01.06 Protective Film Adhesive Residue (aged) — Panel-wide veil with edge-peel scallops and adhesive islands/strings on surface #___; post-reveal test patch shows [SC-0/SC-1] substrate; visible at [12/36/72 in] under VIS geometry. Morphology: uniform interior veil, tide-line halos, scalloped boundaries; no chip-flank sparkle, no discrete pepper. Classification: CAT-[1/2/3] by visibility and SC-class; CAT-5 if between-pane, integrity cues, or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

Paint overspray film is an appearance change on glass from aerosolized paint/primer (airless/spray-can/HVLP) depositing as micro-droplets that coalesce into a speckled film or misted veil. It ranges from discrete dots to a uniform haze and may exhibit tide lines where masking failed or wind drifted plume edges. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status.

• Fine dot field (0.05–0.5 mm) visible in specular view; densest on windward panels or masking laps.
• Veil/mist zones with soft feathered edges tracing spray plume or masking gaps; drips/legs are uncommon unless heavy application.
• Color cue: Often the paint color tone (white/grey most common) or clear binder gloss for clear coats/primers.

• Surface-catch class (MSRT)
• Typically SC-0 (dot/binder film sits on top; non-etch).
• SC-1 can appear in aged/cross-linked overspray with soil embed or where binders partially fused in heat/sun. SC-2 is rare.
• Perform one light, non-marring pass on a small revealed test patch; use polymer stylus if a functional coating is suspected. MSRT supports classification only.
• Visual signature
• Speckled micro-droplets under raking; uniform mist in denser zones; feathered boundary matching spray pattern or masking edge.
• No chip-flank sparkle (not mechanical scoring); no fused metal nodules/pits (not hot-particle).
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, with normal incidence and oblique sweep (~60°–120°); raking macros to resolve droplet field, plume edge, and any tide lines. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). If parallax fixes deposition between panes (#2/#3), classify CAT-5 by location (out of in-place scope) and refer.
• Mechanism cue (context)
• Nearby spray painting, priming, aerosol touch-ups, airless/HVLP equipment; wind or masking failure evidence.

• Assign CAT by visibility at acceptance geometry and MSRT after a controlled reveal test. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Light dot field/veil; SC-0; mainly angle/raking visible; minimal at standard view. Indicative relief: 0–10 μm (optical film).
• CAT-2 (Light): Persistent denser veil with SC-1 at test patch (aged/cross-linked binder + soil); limited standard-view impact. Indicative relief: ~10–40 μm.
• CAT-3 (Moderate): High-density overspray/mist legible at standard distance; SC-1 → SC-2 in worst patches (rare). Indicative relief: ~40–120 μm (film stack).
• Reclassify when: If underlying micro-texture or etch remains after true film removal → evaluate under Ch.04 (chemical) families as indicated.
• CAT-5 (by condition/location): Between-pane/inaccessible by parallax, integrity indicators, or confirmed functional-coating loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” removal during classification.

• vs. Drywall/plaster film (R.02.02): Drywall leaves chalky particulate with powder transfer; paint overspray shows coalesced droplets and binder gloss.
• vs. Stucco/lime residue (R.02.03): Stucco/lime veils alkaline, often with grain, rings/runs and may progress to etch; overspray is organic binder with speck pattern.
• vs. Mineral staining (Ch.03.02): Mineral films follow water arcs/runs; overspray reflects spray plume geometry and masking lines.
• vs. Hydrophobic mismatch (Ch.06.02): Mismatch presents wetting edges; overspray shows colored dots/mist without wetting discontinuity.
• vs. Hot-particle peppering (Th.01.02): Grinder sparks leave metallic pepper with tiny pits and potential rust halos; overspray has soft dots without pit under magnification.

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; raking macros of droplet field and plume edges; context frames of paint operations or masking. Record distance/angle in-frame.
2. MSRT result (substrate): After a small reveal test patch, perform one light, non-marring pass; record SC-class (SC-0/SC-1/SC-2).
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.02.01 Paint Overspray Film — Speckled micro-droplet field / mist veil on surface #___; post-reveal test patch shows [SC-0/SC-1]; visible at [12/36/72 in] under VIS geometry. Morphology: spray plume feather edge, masking lap, color/binder gloss; no chip-flank sparkle, no discrete pits. Classification: CAT-[1/2/3] by visibility and SC-class; CAT-5 if between-pane, integrity cues, or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

Drywall mud/plaster film is an appearance change on glass caused by gypsum-based joint compound or plaster particulates/binders deposited during taping, sanding, feathering, or cleanup. It presents as a chalky veil with drag wipes, finger/pad prints, and particulate halos, sometimes consolidated by moisture. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status.

• Powdery, matte veil with hand/cloth wipe arcs; heavier below joints/ceilings and at sill returns.
• Sanding plume footprints: broad fallout zones with feathered edges; drips/legs if water or wash-down occurred.
• Under raking: fine particulate pepper; may show tide lines where damp wipes dried.

• Surface-catch class (MSRT)
• Typically SC-0 (loose/powder film on top of glass).
• SC-1 may appear when abrasive pads or dry wipe grinding created very shallow micro-texture during improper cleaning; SC-2 uncommon.
• Perform one light, non-marring pass on a small revealed test patch (substrate). Use polymer stylus if a functional coating is suspected. MSRT supports classification only.
• Visual signature
• Uniform matte, chalky cast; wipe streaks with overlap edges; powder sheds to cloth.
• No chip-flank sparkle (not mechanical scoring unless later scrubbed with abrasive); no fused nodules/pits (not hot-particle).
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, normal incidence and oblique sweep (~60°–120°); use raking macros to resolve particulate and tide lines. Record distances/angles in-frame.=
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). If fallout is between panes (fixed parallax on #2/#3), classify CAT-5 by location (out of in-place scope) and refer.
• Mechanism cue (context)
• Active drywall/plaster work, sanding, mixing stations, mud pans, sponge finishing, or power sanding nearby; protective film removed too early.

• Assign CAT by visibility at acceptance geometry and MSRT after a controlled reveal test. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Chalky veil/particulate only; SC-0 after true reveal; primarily angle/raking visible. Indicative relief: 0–10 μm (optical film).
• CAT-2 (Light): Persistent residue with tide-line halos or slight SC-1 from prior abrasive wiping; limited impact at standard view. Indicative relief: ~10–40 μm.
• CAT-3 (Moderate): Broad, high-contrast matte fields legible at standard distance where residue consolidated with moisture or was abraded into micro-texture (SC-1→SC-2 localized). Indicative relief: ~40–120 μm.
• Reclassify when: If underlying alkaline etch is evident (e.g., from cementitious wash, not gypsum) or linear scoring is present from abrasive pads → evaluate under Ch.02 (alkaline attack) or M.02 (mechanical abrasion) as applicable.
• CAT-5 (by condition/location): Between-pane/inaccessible by parallax, integrity indicators, or confirmed functional-coating loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” removal during classification.

• vs. Paint overspray (R.02.01): Overspray shows coalesced micro-droplets and sometimes color tone; drywall/plaster is white, powdery, non-gloss, transfers to cloth.
• vs. Stucco/lime residue (R.02.03) / alkaline attack (Ch.02): Stucco/lime is coarser/grainier, can leave alkaline burn or etch; gypsum films are softer, generally non-etch unless improper abrasive cleaning was used.
• vs. Mineral staining/etch (Ch.03): Mineral veils follow water arcs/runs and can show ring halos; gypsum fallout maps to sanding plumes and wipe zones.
• vs. Silicone or sealant smears (R.01.xx): Those read oily/iridescent with tool-mark corduroy; gypsum films are matte/powder with wipe streaks.

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; raking macros of powder texture, wipe overlaps, tide lines; context frames with active drywall/plaster areas. Record distance/angle in-frame.
2. MSRT result (substrate): After a small reveal test patch, perform one light, non-marring pass; record SC-class (SC-0/SC-1/SC-2).
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.02.02 Drywall Mud / Plaster Film — Chalky matte veil with wipe arcs/overlaps on surface #___; post-reveal test patch shows [SC-0/SC-1]; visible at [12/36/72 in] under VIS geometry. Morphology: powder particulate, tide lines, fallout plume; no chip-flank sparkle, no discrete pits. Classification: CAT-[1/2/3] by visibility and SC-class; CAT-5 if between-pane, integrity cues, or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

Stucco/lime film (residue) is an appearance change on glass from cementitious or lime-rich materials (stucco brown/finish coats, scratch coats, slurry, limewashes) deposited during application, float/rod work, cutting/grinding, or cleanup/rinse-downs. It presents as a chalk–grain veil with runs/rings and tide-line halos that follow gravity paths and splash footprints. This entry covers residual films (removable/partially removable) and does not include confirmed alkaline etch (see Ch.02 Alkaline Attack). Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal per VIS §5; record surface numbering and worked-surface status.

• Grainy, light-colored veil (off-white/grey/tan) with drip legs, sling arcs, or roller splash consistent with stucco work lines; sometimes aggregate specks.
• Tide-line rings where hose-downs dried; heavier at head/jamb/sill interfaces and below scaffolding.
• Under raking: mineral particulate sparkle (non-metallic), micro-grain texture, feathered run edges.

• Surface-catch class (MSRT)
• Typically SC-0 (loose/consolidated film on top of glass).
• SC-1 may occur where paste consolidated (sun/heat) or where improper abrasive wiping introduced very shallow micro-texture. SC-2 suggests misclassification—re-evaluate for alkaline etch (Ch.02) or mechanical abrasion (M-family).
• Perform one light, non-marring pass on a small revealed test patch; use polymer stylus if a functional coating is suspected. MSRT supports classification only.
• Visual signature
• Chalk–grain veil with drip legs/runs, splash arcs, roller spatter; ring/tide lines from rinse-down.
• No chip-flank sparkle (not linear scoring); no fused nodules/pits (not hot particle).
• May show coarse grains (sand/aggregate fines) adhered within run paths.
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, with normal incidence and oblique sweep (~60°–120°); raking macros to resolve grain, run edges, and rings. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). If fixed parallax indicates residue on #2/#3 (IGU cavity), classify CAT-5 by location (out of in-place scope) and refer.
• Mechanism cue (context)
• Active stucco/lath work, scratch/brown/finish operations, EIFS basecoats, limewashes, hose/rinse-down without shielding; cut/grind near openings.

• Assign CAT by visibility at acceptance geometry and MSRT after a controlled reveal on a small area. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Light chalk–grain veil/runs; SC-0 after reveal; mainly angle/raking visible; minimal at standard view. Indicative relief: 0–10 μm (optical film).
• CAT-2 (Light): Persistent consolidated residue or tide-line rings with SC-1 (sun-baked paste, slight shallow texture from mishandling); limited standard-view impact. Indicative relief: ~10–40 μm.
• CAT-3 (Moderate): Broad run fields/rings legible at standard distance; SC-1 in worst zones; context suggests extended dwell/heat or heavy splash. Indicative relief: ~40–120 μm.
• Reclassify when: If, after true residue removal, substrate exhibits modeled micro-texture, matte patches, or SC-2 → evaluate under Ch.02.01/Ch.02.02 (Alkaline Attack: cement/mortar slurry/cement run-off etch).
• CAT-5 (by condition/location): Between-pane/inaccessible by parallax, integrity indicators, or confirmed functional-coating loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” removal during classification.

• vs. Drywall/plaster film (R.02.02): Gypsum films are softer/chalky, often uniform with wipe arcs; stucco/lime shows grainier residue, distinct runs/splash arcs, and alkaline context (exterior elevations).
• vs. Paint overspray (R.02.01): Overspray presents micro-droplet dots and binder gloss; stucco/lime shows grain and non-gloss matte with run legs.
• vs. Alkaline attack (Ch.02): True etch exhibits modeled micro-texture persisting after residue lift and may show SC-2; R.02.03 is residue (film) with SC-0/SC-1, removable in principle.
• vs. Mineral staining/etch (Ch.03): Mineral patterns follow spray/rings from water systems and can be glassy/ring-like; stucco/lime tracks trade work (trowel splash, hose rinse paths) and features grain embed.
• vs. Silicone/PIB smears (R.01.xx): Sealant smears read oily/tarry with corduroy or stringers; stucco/lime is powder/grain matte with run legs and no organics sheen.

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; raking macros of grain, run legs, rings/tide lines; context frames of stucco/lime operations, scaffolds, hose-down zones. Record distance/angle in-frame.
2. MSRT result (substrate): After a small reveal test patch, perform one light, non-marring pass; record SC-class (SC-0/SC-1/SC-2).
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.02.03 Stucco / Lime Film (residue) — Grainy, light-colored veil with runs/tide-line rings on surface #___; post-reveal test patch shows [SC-0/SC-1]; visible at [12/36/72 in] under VIS geometry. Morphology: grain/aggregate fines, splash arcs, feathered run edges; no chip-flank sparkle, no discrete pits. Classification: CAT-[1/2/3] by visibility and SC-class; reclassify to Ch.02 (alkaline attack) if etch/SC-2 persists after true residue lift; CAT-5 if between-pane or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

Suction cup rings are appearance changes on glass caused by vacuum lifter cups or manual suction tools during fabrication, transport, or install. They present as circular/oval rings, center pucks, or tri-/quad-lobe clusters reflecting multi-pad frames. Artifacts include transfer films (plasticizer, rubber, dust-print), pressure marks, or moisture halos; heavy dwell/heat can leave persistent veils. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status.

• Concentric ring (outer lip + inner puck), diameter commonly 80–400 mm depending on cup size; sometimes three-cup triangular or four-cup rectangular arrays.
• Soft, circular veil with darker edge ring (soil capture) and finger-like wipe arcs from hurried cleanups.
• Water-behavior contrast (beading) where hydrophobic mold-release or rubber plasticizer transferred.

• Surface-catch class (MSRT)
• Typically SC-0 (film/pressure-only).
• SC-1 may appear where aged plasticizer or heat dwell induced slight micro-texture or converted film; SC-2 is uncommon—recheck classification if present.
• Perform one light, non-marring pass on a small revealed test patch (substrate), not over gummy islands. Polymer stylus if a functional coating is suspected. MSRT supports classification only.
• Visual signature
• Perfect or near-perfect circles/ovals matching cup geometry; sometimes radial striations or vacuum port prints.
• Arrays align to spreader bar patterns (triangles/rectangles).
• No chip-flank sparkle (not mechanical scoring); no discrete fused pits (not hot-particle).
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, normal and oblique sweep (~60°–120°); raking reveals ring/lip edges, center puck, and wipe overlaps. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). If fixed parallax shows the print within the IGU cavity (#2/#3), classify CAT-5 by location and refer.
• Mechanism cue (context)
• Nearby glazing activities, spreader bars, vacuum lifter on site, crate marks, glass rack photos, or install sequencing.

• Assign CAT by visibility at acceptance geometry and MSRT after a controlled reveal on a small area. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Thin ring/veil; SC-0 after reveal; primarily angle/raking visible. Indicative relief: 0–10 μm (optical).
• CAT-2 (Light): Persistent circular veil with wetting contrast or slight SC-1 (aged plasticizer/heat dwell); limited standard-view impact. Indicative relief: ~10–40 μm.
• CAT-3 (Moderate): Multiple rings/arrays legible at standard distance (visual clutter), with patchy SC-1 in ring lips; suggests extensive handling exposure. Indicative relief: ~40–120 μm.
• Reclassify when: After true residue lift, any modeled micro-texture or SC>0 persists on substrate → consider Ch.06.02 hydrophobic coating mismatch halo or Ch.04.03 alkaline/degreaser burn if strong cleaners were used.
• CAT-5 (by condition/location): Between-pane by parallax, integrity issues, or coated-face loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” removal during classification.

• vs. Adhesive label/sticker ghost (R.01.05): Labels are smaller with die-cut corners; cup rings are larger round/oval with lip + puck geometry or multi-pad arrays.
• vs. Hydrophobic mismatch halo (Ch.06.02): Mismatch edges are irregular and field-wide; cup rings are precise circles matching pad size.
• vs. Silicone smear (R.01.01): Silicone tracks joints and shows corduroy; cup rings are isolated circles with wetting contrast.
• vs. Mineral rings (Ch.03.02): Mineral rings follow evaporation puddles and show concentric mineral deposits; cup rings have uniform interior with lip impression.
• vs. Paint overspray (R.02.01): Overspray is a speckled field without circular boundaries.

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; raking macros of ring lip, puck, wipe overlaps; context frames showing vacuum equipment or handling setup. Record distance/angle in-frame.
2. MSRT result (substrate): After a small reveal test patch, perform one light, non-marring pass; record SC-class (SC-0/SC-1/SC-2).
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.03.01 Suction Cup Rings — Circular/oval ring + center puck on surface #___; post-reveal test patch shows [SC-0/SC-1]; visible at [12/36/72 in] under VIS geometry. Morphology: cup-size circle(s), array pattern, wetting contrast; no chip-flank sparkle, no discrete pits. Classification: CAT-[1/2/3] by visibility and SC-class; CAT-5 if between-pane or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

Separator pad ghost / “waffle” print is an appearance change on glass caused by packaging/separator pads (foam, corrugated, felt, polymer “waffle” grids) used in racks/crates between lites. It presents as grid or checker imprints, pad-outline veils, or speck/adhesive islands coincident with pad contact zones. Artifacts may include plasticizer/adhesive transfer and pressure marks from long dwell, heat, or vibration. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status.

• Regular grid/waffle pattern (e.g., 5–20 mm pitch) or rectilinear/round pad outline repeating at rack spacing.
• Matte veils under pad footprint with clean “negative” gaps at grid voids; occasional adhesive specks at nodes.
• Orientation consistency across multiple lites suggests crating/racking origin.

• Surface-catch class (MSRT)
• Typically SC-0 (film/pressure-only).
• SC-1 can appear where plasticizer/adhesive cross-linked (UV/heat dwell) or minor micro-texture formed from trapped fines; SC-2 uncommon—re-evaluate if present.
• Perform one light, non-marring pass on a small revealed test patch (substrate), not over gummy nodes. Use polymer stylus if a functional coating is suspected. MSRT supports classification only.
• Visual signature
• Repeating geometric pattern (grid/waffle/checker) with even pitch; sharp pad edge or rounded corners depending on separator style.
• Node-centered dots or tiny adhesive islands at pressure points; no chip-flank sparkle (not mechanical scoring); no fused pits (not hot-particle).
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, normal incidence and oblique sweep (~60°–120°); raking resolves grid relief, node islands, and boundary lines. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). Fixed parallax placing the pattern on #2/#3 (IGU cavity) → CAT-5 by location (out of in-place scope) and refer.
• Mechanism cue (context)
• Evidence of delivery racks/crates, separator remnants, foam/corrugate pads, or shipping photos; patterns often align across multiple adjacent lites received together.

• Assign CAT by visibility at acceptance geometry and MSRT after a controlled reveal on a small area. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Faint grid/pad outline; SC-0 after reveal; mainly angle/raking visible. Indicative relief: 0–10 μm (optical film).
• CAT-2 (Light): Persistent pad veil with node islands and occasional SC-1 (aged transfer); limited standard-view impact. Indicative relief: ~10–40 μm.
• CAT-3 (Moderate): Wide-area grid legible at standard distance, creating visual clutter; localized SC-1→SC-2 at heavy nodes (rare). Indicative relief: ~40–120 μm.
• Reclassify when: After true residue lift, any modeled micro-texture or SC>0 persists broadly → evaluate under Ch.06.02 hydrophobic mismatch halo (if wetting contrast dominates) or Ch.04.02/.03 (if solvent/alkali burns present).
• CAT-5 (by condition/location): Between-pane by parallax, integrity issues, or coated-face loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” removal during classification.

• vs. Suction cup rings (R.03.01): Cup artifacts are large circles/ovals with lip+puck; separator ghosts are small-pitch grids or pad outlines repeating at rack spacing.
• vs. Adhesive label/sticker ghost (R.01.05): Labels are isolated, discrete shapes; separator ghosts are repeating and arrayed.
• vs. Mineral deposition rings (Ch.03.02): Mineral rings are concentric/puddle-based; separator patterns are uniform grids or pad rectangles.
• vs. Paint overspray (R.02.01): Overspray is a random speck field; separator ghosts are regular, equal-pitch with node emphasis.
• vs. Coating anomalies (Co-family): Factory non-uniformity lacks grid congruence and often sits on #2/#3; separator ghosts occur on exposed faces unless cavity-side (then CAT-5).

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; raking macros of grid nodes, pad edges, boundary lines; context frames of racks/crates/pads. Record distance/angle in-frame.
2. MSRT result (substrate): After a small reveal test patch, perform one light, non-marring pass; record SC-class (SC-0/SC-1/SC-2).
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.03.02 Separator Pad Ghost / “Waffle” Print — Regular grid/pad-outline veil with node islands on surface #___; post-reveal test patch shows [SC-0/SC-1]; visible at [12/36/72 in] under VIS geometry. Morphology: equal-pitch waffle, pad rectangle/round, repeating across lites; no chip-flank sparkle, no discrete pits. Classification: CAT-[1/2/3] by visibility and SC-class; CAT-5 if between-pane or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

Roller/handling rail transfer is an appearance change on glass from contact with conveyor rollers, storage/handling rails, truck/rack rails, or in-plant guides during fabrication, transport, or staging. It presents as linear bands (often horizontal), repeating pitch marks matching roller spacing, or soiled streaks at consistent heights. Transfer may include rubber/plasticizer films, dust/oxide, or shop grime, sometimes with pressure marks from dwell or vibration. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status.

• Straight, level bands at recurrent elevations (e.g., 200–400 mm above sill) corresponding to rack rails; may appear on multiple adjacent lites at the same height.
• Repeating “tick” pattern at roller pitch (factory conveyor lines) or broad smudged rails from storage cradles.
• In specular: dirty/grey streaks; in raking: drag direction with fine particulate embed along the band.

• Surface-catch class (MSRT)
• Typically SC-0 (film/pressure-only).
• SC-1 can appear where aged plasticizer/oxidized rubbers or abrasive dust produced very shallow micro-texture during movement; SC-2 uncommon—recheck classification if present.
• Perform one light, non-marring pass on a small revealed test patch (substrate), not over gummy accumulations. Use polymer stylus if a functional coating is suspected on the worked face. MSRT supports classification only.
• Visual signature
• Linear, level bands (often parallel to sill) that continue across multiple panes; may include periodic darker ticks at roller spacing.
• Soil-laden streaks with drag direction (in/out of opening); no chip-flank sparkle (not mechanical scoring); no fused pits/nodules (not hot-particle).
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, normal incidence and oblique sweep (~60°–120°); raking resolves band edges, pitch marks, particulate embed. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). If fixed parallax places the band on #2/#3 (IGU cavity), classify CAT-5 by location (out of in-place scope) and refer.
• Mechanism cue (context)
• Evidence of factory conveyors, storage racks/cradles, A-frames, truck transport photos, site staging rails; common elevation across many lites is a strong cue.

• Assign CAT by visibility at acceptance geometry and MSRT after a controlled reveal test. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Faint linear band(s); SC-0 after reveal; mostly angle/raking visible. Indicative relief: 0–10 μm (optical film).
• CAT-2 (Light): Persistent rail bands with soil loading or slight SC-1 (aged plasticizer/oxidation); limited impact at standard view. Indicative relief: ~10–40 μm.
• CAT-3 (Moderate): Wide/contrasty bands or repeating roller pitch legible at standard distance; localized SC-1→SC-2 where abrasion with dust occurred. Indicative relief: ~40–120 μm.
• Reclassify when: If, after true residue removal, modeled micro-texture or linear scoring remains → evaluate under M.01 (linear scoring) or M.02 (abrasion fields) as applicable.
• CAT-5 (by condition/location): Between-pane/inaccessible by parallax, integrity indicators, or confirmed functional-coating loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” removal during classification.

• vs. Conveyor/belt line scoring (M.01.04): True scoring shows chip-flank sparkle and SC-2; rail transfer is film/soil with SC-0/SC-1 and lacks sharp line incision.
• vs. Straightedge/metal guide scoring (M.01.02): Guide scoring is single/few sharp lines; rail transfer is broad banding often repeating across multiple panes.
• vs. Paint overspray (R.02.01): Overspray is speckled/mist without strict level bands or roller pitch.
• vs. Silicone/PIB smears (R.01.xx): Sealant smears hug joints and show corduroy/stringers; rail transfer aligns with handling heights and transport geometry.
• vs. Mineral run/stain (Ch.03.02): Mineral runs follow gravity/drip paths (vertical); rail transfer is horizontal/level and repeatable across bays.

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; raking macros of band edges, pitch marks, particulate embed; context frames capturing repeating elevation across bays and any racks/rails on site. Record distance/angle in-frame.
2. MSRT result (substrate): After a small reveal test patch, perform one light, non-marring pass; record SC-class (SC-0/SC-1/SC-2).
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.03.03 Roller / Handling Rail Transfer — Linear, level band(s) with repeating pitch marks/soil streaks on surface #___; post-reveal test patch shows [SC-0/SC-1]; visible at [12/36/72 in] under VIS geometry. Morphology: rail-height streaks, roller pitch ticks, drag direction; no chip-flank sparkle, no discrete pits. Classification: CAT-[1/2/3] by visibility and SC-class; reclassify to M.01/M.02 if scoring/abrasion persists after true residue lift; CAT-5 if between-pane or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

Detergent/surfactant film is an appearance change on glass from leftover cleaning agents (surfactants, wetting agents, soaps) due to incomplete rinse, over-concentration, hard-water mixing, or re-deposition from tools. It presents as shear streaks, drag/wipe overlaps, rainbow/iridescent sheens in low-angle light, and re-wet spotting. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status.

• Directional wipe streaks (vertical squeegee pulls, circular hand wipes) with overlap edges and stop-start stamps.
• Iridescent/rainbow sheen at oblique/raking angles; ghosting returns when lightly misted (re-wet reveals surfactant).
• Heavier at edge starts, high-touch zones, or where microfiber/soap was over-used.

• Surface-catch class (MSRT)
• Typically SC-0 (thin organic film on surface).
• SC-1 may occur where abrasive cloths/pads introduced very shallow micro-texture while detergent residue acted as a binder; SC-2 is uncommon and suggests misclassification.
• Perform one light, non-marring pass on a small revealed test patch (substrate). Use polymer stylus if a functional coating is suspected. MSRT supports classification only.
• Visual signature
• Shear streaks and overlap lines that mirror tool paths; rainbowing/iridescence in raking; re-wet beading anomalies (film “breaks” unevenly).
• No chip-flank sparkle (not mechanical scoring); no discrete pits (not hot-particle peppering).
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, normal incidence and oblique sweep (~60°–120°); use raking light macros to show shear streaks and iridescent film. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). If pattern appears between panes by parallax on #2/#3, classify CAT-5 by location and refer.
• Mechanism cue (context)
• Recently cleaned panels, soap buckets nearby, detergent residue on sills, dirty/saturated microfiber, high TDS mix water, or no final rinse.

• Assign CAT by visibility at acceptance geometry and MSRT after a controlled reveal test. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Thin detergent veil with shear streaks/iridescence; SC-0; mainly angle/raking visible. Indicative relief: 0–10 μm (optical film).
• CAT-2 (Light): Persistent film with overlap edges and SC-1 in small zones (from abrasive wiping); limited impact at standard view. Indicative relief: ~10–40 μm.
• CAT-3 (Moderate): Wide-area streaking/veils legible at standard distance due to heavy deposition or soil capture; localized SC-1. Indicative relief: ~40–120 μm.
• Reclassify when: After true residue removal, any modeled micro-texture or SC>0 persists → evaluate under M.02 (abrasion fields) or Ch.03 (mineral) if water deposits are involved.
• CAT-5 (by condition/location): Between-pane/inaccessible by parallax, integrity indicators, or confirmed functional-coating loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” film removal during classification.

• vs. Fabric softener/additive film (R.04.02): Additive films often show sweet/fragrance cue, silicone/quaternary feel, and strong wetting anomalies; detergent film is classic streak/iridescence with cleaning pattern geometry.
• vs. Mineral staining (Ch.03.02): Minerals leave ring/runs and crystalline edges; detergent films present tool-path streaks and uniform iridescence without ring crystals.
• vs. Hydrophobic mismatch (Ch.06.02): Mismatch exhibits sharp wetting boundaries; detergent film shows gradual streaks that re-wet uniformly (but highlight streak lines).
• vs. Silicone/PIB smears (R.01.xx): Sealant smears are oily/tacky with corduroy or stringers; detergent film is thin, non-tacky, with wiping geometry.

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; raking macros of shear streaks and iridescence; optional light mist frame to show re-wet behavior (avoid flooding edges). Record distance/angle in-frame.
2. MSRT result (substrate): After a small reveal test patch, perform one light, non-marring pass; record SC-class (SC-0/SC-1/SC-2).
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.04.01 Detergent / Surfactant Film — Directional shear streaks with iridescent veil on surface #___; post-reveal test patch shows [SC-0/SC-1]; visible at [12/36/72 in] under VIS geometry. Morphology: tool-path overlaps, re-wet highlighting, no chip-flank sparkle, no pits. Classification: CAT-[1/2/3] by visibility and SC-class; CAT-5 if between-pane or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

Fabric softener / cleaner additive film is an appearance change on glass caused by transfer of conditioning agents (e.g., cationic quaternary compounds, siloxanes, fragrances, optical brighteners) from laundered towels or multi-purpose cleaners containing “leave-behind” additives. It presents as smeary glow/halo, strong wetting anomalies (persistent beading/sheeting contrast), and directional wipe geometry. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status.

• Soft, greasy-looking sheen with wipe arcs/overlaps; frequently returns after re-wet, indicating hydrophobe contamination.
• Beading contrast when lightly misted—film areas bead strongly while clean glass sheets (or vice versa).
• Often accompanied by a fragrance cue (fresh/“laundry” smell) from towels/cleaners; heaviest where hands/pads start/stop.

• Surface-catch class (MSRT)
• Typically SC-0 (thin organic film on top).
• SC-1 may appear where aggressive/abrasive wiping created very shallow micro-texture while film was present; SC-2 uncommon—recheck classification if observed.
• Perform one light, non-marring pass on a small revealed test patch (substrate). Use a polymer stylus if a functional coating is suspected. MSRT supports classification only.
• Visual signature
• Smeary glow in specular; wipe tracks and overlap edges; no chip-flank sparkle; no discrete pits/nodules.
• Wetting-behavior discontinuity is the hallmark—crisp boundary between film and clean areas during an optional mist test.
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, normal incidence and oblique sweep (~60°–120°); raking reveals sheen gradients and overlap lines. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). If a similar pattern appears between panes by parallax on #2/#3, classify CAT-5 by location and refer.
• Mechanism cue (context)
• Freshly laundered towels with softener or “glass cleaner + protectant/shine” products; janitorial or residential cleaning histories; fragrance noted on cloths.

• Assign CAT by visibility at acceptance geometry and MSRT after a controlled reveal on a small area. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Thin hydrophobe film; SC-0; visible mainly at angle/raking; clear wetting contrast on mist. Indicative relief: 0–10 μm (optical).
• CAT-2 (Light): Persistent wetting contrast with wipe overlaps; localized SC-1 from prior abrasive wiping; limited standard-view impact. Indicative relief: ~10–40 μm.
• CAT-3 (Moderate): Wide-area hydrophobe contamination legible at standard distance (global sheen non-uniformity), with scattered SC-1; typically from repeated deposits over time. Indicative relief: ~40–120 μm (film stack).
• Reclassify when: After true residue lift, any modeled micro-texture or SC>0 persists → evaluate under M.02 (abrasion fields) or Ch.06.02 (hydrophobic coating mismatch halo) if a durable surface treatment is suspected.
• CAT-5 (by condition/location): Between-pane/inaccessible by parallax, integrity indicators, or confirmed functional-coating loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” removal during classification.

• vs. Detergent/surfactant film (R.04.01): Both show wipe geometry; additive films feature stronger wetting contrast and often a fragrance cue; detergent film shows iridescence more commonly.
• vs. Hydrophobic coating mismatch halo (Ch.06.02): Mismatch halos have stable, sharp boundaries from applied coatings; additive films have irregular, tool-path edges and typically remove uniformly on a small reveal patch.
• vs. Silicone/PIB smears (R.01.xx): Sealant smears are oily/tacky near joints and may show stringers; additive films are thin, broad and coincide with cleaning paths.
• vs. Mineral staining/etch (Ch.03): Minerals show ring/runs and crystalline edges; additive films lack ring crystals and display wetting contrast rather than mineral build.

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; raking macros of sheen gradients and overlap lines; optional light mist frame to show beading/sheeting contrast (avoid flooding edges). Record distance/angle in-frame.
2. MSRT result (substrate): After a small reveal test patch, perform one light, non-marring pass; record SC-class (SC-0/SC-1/SC-2).
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.04.02 Fabric Softener / Cleaner Additive Film — Smeary glow with strong wetting contrast and wipe overlaps on surface #___; post-reveal test patch shows [SC-0/SC-1]; visible at [12/36/72 in] under VIS geometry. Morphology: hydrophobe boundary on mist, fragrance cue, no chip-flank sparkle, no pits. Classification: CAT-[1/2/3] by visibility and SC-class; CAT-5 if between-pane or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

HVAC aerosol / oil film is an appearance change on glass from airborne oils, plasticizers, and fine condensables emitted or entrained by HVAC systems, kitchens, shop floors, or mechanical rooms, depositing as a uniform, slightly tacky veil that captures dust. It often shows gradients aligned to supply/return paths or equipment proximity. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status.

• Broad, low-contrast smear/veil across interior faces near diffusers/returns, elevator lobbies, or shop areas (machining, forklifts).
• Dust-capture patterning (fine particulate embedded), finger wipe “windows” from ad-hoc cleaning, and edge build near frames.
• In raking: soft glow with wipe overlap arcs where partial cleanups occurred.

• Surface-catch class (MSRT)
• Typically SC-0 (thin oil film).
• SC-1 may appear where abrasive cloths or dust-laden wipers produced very shallow micro-texture during attempts to clean; SC-2 uncommon—recheck classification if observed.
• Perform one light, non-marring pass on a small revealed test patch (substrate). Use a polymer stylus if a functional coating is suspected. MSRT supports classification only.
• Visual signature
• Uniform smeary glow with dust capture; hand/finger “windows”; directional gradient pointing back to grille or process source.
• No chip-flank sparkle (not mechanical scoring); no discrete fused pits (not hot particle).
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, normal incidence and oblique sweep (~60°–120°); raking macros to resolve sheen, dust embed, and overlap edges. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). Interior inboard (#4) faces are common. If fixed parallax places the veil between panes (#2/#3), classify CAT-5 by location (out of in-place scope) and refer.
• Mechanism cue (context)
• Nearby supply/return diffusers, kitchen make-up air, mechanical rooms, industrial oils, vape/smoke areas, parking exhaust; presence of oily dust on frames/sills.

• Assign CAT by visibility at acceptance geometry and MSRT after a controlled reveal test. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Thin oil veil; SC-0; seen mainly at angle/raking; minor dust capture. Indicative relief: 0–10 μm (optical).
• CAT-2 (Light): Persistent film with dust embed and localized SC-1 from prior wiping; limited impact at standard view. Indicative relief: ~10–40 μm.
• CAT-3 (Moderate): Wide-area contamination legible at standard distance (global haze, patterning near grilles); scattered SC-1 in wipe attempts. Indicative relief: ~40–120 μm (film stack).
• Reclassify when: After true residue lift, any modeled micro-texture or SC>0 persists → evaluate under M.02 (abrasion fields); if soot/combustion dominates, consider E.01.03 Soot/particulate pollution film.
• CAT-5 (by condition/location): Between-pane/inaccessible by parallax, integrity indicators, or confirmed functional-coating loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” removal during classification.

• vs. Kitchen grease/aerosol film (R.04.04): Kitchen grease presents heavier tack, yellow/brown tone, and localized spatter near cooking lines; HVAC films are broader, gradiated with HVAC alignment.
• vs. Detergent/surfactant film (R.04.01): Detergent films show tool-path streaks and iridescence; HVAC films are uniform veils with dust embed and source-aligned gradient.
• vs. Fabric softener/additive film (R.04.02): Additive films show strong wetting contrast upon mist; HVAC films show less distinct wetting boundaries and more dust capture.
• vs. Soot/particulate pollution film (E.01.03): Soot films are darker/grey, particulate-dominant; HVAC oils are clear/amber, smear easily, and leave oily residue on a clean cloth.

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; raking macros of sheen/dust embed and wipe overlaps; context frames of HVAC grilles/returns showing alignment. Record distance/angle in-frame.
2. MSRT result (substrate): After a small reveal test patch, perform one light, non-marring pass; record SC-class (SC-0/SC-1/SC-2).
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.04.03 HVAC Aerosol / Oil Film — Uniform smeary veil with dust capture and source-aligned gradient on surface #___; post-reveal test patch shows [SC-0/SC-1]; visible at [12/36/72 in] under VIS geometry. Morphology: oily smear, finger wipe windows, no chip-flank sparkle, no pits. Classification: CAT-[1/2/3] by visibility and SC-class; CAT-5 if between-pane or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

Kitchen grease / aerosol film is an appearance change on glass caused by cooking-generated aerosols (lipids, emulsifiers, sugars, combustion by-products) that condense on nearby glass. It presents as a tacky amber veil with fine spatter freckles, dust capture, and wipe trails from ad-hoc cleaning. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status.

• Warm tone (light amber/yellow cast) in specular; “greasy glow”.
• Fine spatter near cooktops/fryers; heavier deposition on adjacent inboard (#4) faces, partitions, pass-throughs.
• Dust/soot embed over time; finger windows and wipe arcs; sometimes odor (cooking oils).

• Surface-catch class (MSRT)
• Typically SC-0 (lipid film on surface).
• SC-1 may occur where abrasive/dusty wiping introduced very shallow micro-texture or compacted soil; SC-2 is uncommon—recheck classification if observed.
• Perform one light, non-marring pass on a small revealed test patch (substrate). Use polymer stylus if a functional coating is suspected. MSRT supports classification only.
• Visual signature
• Tacky amber veil with spatter freckles, wipe overlaps, edge build near frames; no chip-flank sparkle (not mechanical), no discrete fused pits (not hot-particle).
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, normal incidence and oblique sweep (~60°–120°); raking macros to resolve spatter, sheen, overlap lines. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). Interior kitchen/service areas common. If fixed parallax places film between panes (#2/#3), classify CAT-5 by location (out of in-place scope) and refer.
• Mechanism cue (context)
• Active cooking lines, fryers, griddles, ovens, dish areas; make-up air/hood patterns; grease on frames/sills.

• Assign CAT by visibility at acceptance geometry and MSRT after a controlled reveal test. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Thin lipid veil; SC-0; mainly angle/raking visible; minor spatter/dust. Indicative relief: 0–10 μm (optical).
• CAT-2 (Light): Persistent grease film with spatter field and localized SC-1 (prior abrasive wiping/soil); limited standard-view impact. Indicative relief: ~10–40 μm.
• CAT-3 (Moderate): Wide-area tacky contamination legible at standard distance (global haze/amber cast), with scattered SC-1; typically from long dwell or poor housekeeping. Indicative relief: ~40–120 μm (film stack).
• Reclassify when: After true residue lift, any modeled micro-texture or SC>0 persists → evaluate under M.02 (abrasion fields); if heavy soot dominates, consider E.01.03 Soot/particulate pollution film.
• CAT-5 (by condition/location): Between-pane/inaccessible by parallax, integrity indicators, or confirmed functional-coating loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” removal during classification.

• vs. HVAC aerosol/oil film (R.04.03): HVAC films are broader/neutral with grille-aligned gradients; kitchen grease shows amber tone and localized spatter near cooking lines.
• vs. Detergent/surfactant film (R.04.01): Detergent films show iridescence and tool-path streaks; grease shows tacky veil and spatter freckles.
• vs. Fabric softener/additive film (R.04.02): Additive films show strong wetting contrast and fragrance; grease films show odor of cooking oils and spatter morphology.
• vs. Mineral staining/etch (Ch.03): Minerals present ring/runs and crystalline edges; grease shows spatter + tack without mineral crystals.

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; raking macros of spatter, sheen, overlap lines; context frames of kitchen equipment/hoods. Record distance/angle in-frame.
2. MSRT result (substrate): After a small reveal test patch, perform one light, non-marring pass; record SC-class (SC-0/SC-1/SC-2).
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.04.04 Kitchen Grease / Aerosol Film — Tacky amber veil with fine spatter on surface #___; post-reveal test patch shows [SC-0/SC-1]; visible at [12/36/72 in] under VIS geometry. Morphology: spatter freckles, wipe overlaps, dust capture; no chip-flank sparkle, no pits. Classification: CAT-[1/2/3] by visibility and SC-class; CAT-5 if between-pane or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

Nicotine / tar film is an appearance change on glass from tobacco smoke or vape condensates (nicotine, tars, glycols, aromatics) and combustion by-products that deposit as a sticky brown/amber veil. It often shows edge build, finger wipe “windows”, and drip legs on vertical glazing where condensation cycles occur. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status.

• Warm brown/amber cast (can be subtle to pronounced), especially in specular.
• Uniform tacky veil with finger/hand wipe arcs, lettering attempts, or rag stop-marks.
• Vertical drip legs beneath frame heads or HVAC paths; odor may be present on frames/sills/cloths after contact.
• May co-present with HVAC aerosol/oil film in smoking/vaping lounges or entries.

• Surface-catch class (MSRT)
• Typically SC-0 (sticky organic film on surface).
• SC-1 may appear where dust-laden/abrasive wiping compacted soil or introduced very shallow micro-texture; SC-2 is uncommon—recheck classification if observed.
• Perform one light, non-marring pass on a small revealed test patch (substrate). Use a polymer stylus if a functional coating is suspected. MSRT supports classification only.
• Visual signature
• Brown/amber veil with wipe windows/overlaps, edge build, and sometimes vertical drip legs.
• No chip-flank sparkle (not mechanical scoring); no discrete fused pits/nodules (not hot-particle).
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, normal incidence and oblique sweep (~60°–120°); raking macros to resolve sheen, wipe edges, drip legs. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). Most common on inboard (#4) faces near entry vestibules, smoking areas, or residential interiors. If fixed parallax places the veil on #2/#3 (IGU cavity), classify CAT-5 by location (out of in-place scope) and refer.
• Mechanism cue (context)
• Smoking/vaping activity, ash receptacles, signage, odor on frames or cloths, nearby HVAC returns carrying smoke.

• Assign CAT by visibility at acceptance geometry and MSRT after a controlled reveal test. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Thin amber veil; SC-0; mainly angle/raking visible; minor wipe marks. Indicative relief: 0–10 μm (optical film).
• CAT-2 (Light): Persistent tacky film with wipe overlaps/drip legs and localized SC-1 from prior dusty wiping; limited standard-view impact. Indicative relief: ~10–40 μm.
• CAT-3 (Moderate): Wide-area, high-contrast discoloration legible at standard distance (global amber haze), with scattered SC-1; often long-term exposure or poor housekeeping. Indicative relief: ~40–120 μm (film stack).
• Reclassify when: After true residue lift, any modeled micro-texture or SC>0 persists → evaluate under M.02 (abrasion fields); if soot predominates without amber tone, consider E.01.03 Soot/particulate pollution film.
• CAT-5 (by condition/location): Between-pane/inaccessible by parallax, integrity indicators, or confirmed functional-coating loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” removal during classification.

• vs. HVAC aerosol/oil film (R.04.03): HVAC films are clear/neutral with grille-aligned gradients; nicotine/tar shows amber tone, odor, and drip legs from condensation cycles.
• vs. Kitchen grease/aerosol film (R.04.04): Kitchen grease has spatter freckles near cooking lines; nicotine/tar is more uniform, room-wide, with entry/vaping area context.
• vs. Detergent/surfactant film (R.04.01): Detergent films show iridescence and tool-path streaks; nicotine/tar shows amber veil and odor cues.
• vs. Mineral staining/etch (Ch.03): Minerals make white/grey rings/runs; nicotine/tar is amber/brown, sticky, and non-crystalline.
• vs. Soot/particulate film (E.01.03): Soot is grey/black, more particulate-dominant with dry transfer; nicotine/tar is tacky/amber with odor.

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; raking macros of sheen, wipe overlaps, drip legs; context frames of smoking/vaping areas or signage/HVAC returns. Record distance/angle in-frame.
2. MSRT result (substrate): After a small reveal test patch, perform one light, non-marring pass; record SC-class (SC-0/SC-1/SC-2).
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.04.05 Nicotine / Tar Film — Amber/brown tacky veil with wipe windows and drip legs on surface #___; post-reveal test patch shows [SC-0/SC-1]; visible at [12/36/72 in] under VIS geometry. Morphology: odor cue, edge build, no chip-flank sparkle, no pits. Classification: CAT-[1/2/3] by visibility and SC-class; CAT-5 if between-pane or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

EPDM gasket black rub is an appearance change on glass caused by contact transfer of ethylene-propylene-diene (EPDM) glazing gaskets, weatherstrips, door sweeps, or setting blocks. It presents as grey–black smudge bands, corner arcs mirroring gasket geometry, or wipe-smeared trails where attempts were made to clean. Transfer may include carbon black, antiozonants, and surface waxes from the elastomer. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status.

• Linear smudge bands along jamb/head/sill where gaskets bear on the lite; tight corner arcs at miters.
• Door sweeps produce low horizontal bands on adjacent glazing.
• Smeared trails from dry wiping; heavier deposition at contact pressure points (hinge side, latch side).

• Surface-catch class (MSRT)
• Typically SC-0 (soft transfer on top of glass).
• SC-1 may appear where dust-laden cloths or dry abrasion created very shallow micro-texture in the smudge path; SC-2 suggests misclassification (check for mechanical abrasion M-family).
• Perform one light, non-marring pass on a small revealed test patch (substrate), not over heavy soot-like deposits. Use polymer stylus if a functional coating is suspected on the worked face. MSRT supports classification only.
• Visual signature
• Dark grey/black smear that mirrors gasket line; feathered outer edge and denser inner edge at contact locus.
• No chip-flank sparkle (not scoring); no discrete fused pits/nodules (not hot particle).
• May show rubber “drag commas” or micro-crumbs at starts/stops.
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, normal incidence and oblique sweep (~60°–120°); raking macros to resolve smear texture, edge feather, and contact geometry. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). Most common on exposed inboard faces (#4) at operable units or doors. If fixed parallax places the mark between panes (#2/#3), classify CAT-5 by location and refer.
• Mechanism cue (context)
• Fresh/aging gaskets with visible bloom, door sweep contact, operable sash compression, wind-loaded units; witness marks on gasket faces.

• Assign CAT by visibility at acceptance geometry and MSRT after a controlled reveal on a small area. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Light smudge band; SC-0; mainly angle/raking visible. Indicative relief: 0–10 μm (optical film).
• CAT-2 (Light): Persistent dark band with localized SC-1 from prior dry wiping/soil; limited standard-view impact. Indicative relief: ~10–40 μm.
• CAT-3 (Moderate): Wide, high-contrast bands or multiple contact paths legible at standard distance, with scattered SC-1 where soil compacted. Indicative relief: ~40–120 μm.
• Reclassify when: After true residue lift, if linear scoring or micro-abrasion swirls remain → evaluate under M.01 (linear scoring) or M.02 (abrasion fields).
• CAT-5 (by condition/location): Between-pane/inaccessible by parallax, integrity indicators, or confirmed functional-coating loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” removal during classification.

• vs. PVC plasticizer smear (R.05.02): PVC smears skew brown/amber with oily gloss and wetting anomalies; EPDM rub is grey/black, matte-smear and tracks elastomer contact lines.
• vs. Neoprene roller transfer (R.05.03): Neoprene often dotty/patchy with roller pitch; EPDM rub is continuous linear at gasket lines.
• vs. Silicone/PIB smears (R.01.xx): Sealant smears are oily/tacky near joints with corduroy/stringers; EPDM rub is dry-smudge exactly at gasket bearing zones.
• vs. Soot/particulate pollution (E.01.03): Soot is widespread grey/black with dry transfer; EPDM rub is localized to contact geometry.

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; raking macros of smear edge, contact line, corner arcs; context frames of gaskets/sweeps contacting the lite. Record distance/angle in-frame.
2. MSRT result (substrate): After a small reveal test patch, perform one light, non-marring pass; record SC-class (SC-0/SC-1/SC-2).
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.05.01 EPDM Gasket Black Rub — Grey–black smudge band/arc aligned to gasket contact on surface #___; post-reveal test patch shows [SC-0/SC-1]; visible at [12/36/72 in] under VIS geometry. Morphology: feathered smear, corner arcs, no chip-flank sparkle, no pits. Classification: CAT-[1/2/3] by visibility and SC-class; CAT-5 if between-pane or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

PVC plasticizer smear / migration film is an appearance change on glass caused by phthalate/alt-plasticizer migration and oily exudate transfer from PVC/vinyl components (edge trims, protection wraps, temporary films, blinds/slats, gasket liners, packing). It presents as an amber/brown oily smear or veil, often with distinct contact patches (nodes/lines) and pronounced wetting anomalies. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status.

• Warm amber cast with oily gloss, frequently linear along trim/blind contact lines or sheet-like under vinyl wraps left in sun.
• Contact “nodes” at stiffener points, clip feet, or cord ladders (for blinds).
• Wetting-behavior discontinuity (beading/sheeting contrast) that reappears after light misting; edge build near frames.

• Surface-catch class (MSRT)
• Typically SC-0 (thin oily film on top).
• SC-1 may appear where dusty/abrasive wiping compacted soil or created very shallow micro-texture; SC-2 uncommon—recheck classification if observed.
• Perform one light, non-marring pass on a small revealed test patch (substrate). Use a polymer stylus if a functional coating is suspected. MSRT supports classification only.
• Visual signature
• Amber/brown, oily smear/veil tracing PVC contact geometry (linear, lattice, or broad sheet).
• Crisp wetting boundaries under a light mist (optional diagnostic).
• No chip-flank sparkle (not mechanical scoring); no discrete fused pits (not hot-particle).
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, normal incidence and oblique sweep (~60°–120°); raking macros to show sheen, contact nodes/lines, and wetting contrast. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). Common on inboard (#4) faces near vinyl blinds, PVC trims, wraps, or temporary tapes. If parallax fixes film between panes (#2/#3), classify CAT-5 by location and refer.
• Mechanism cue (context)
• PVC components touching glass (blinds slats/cords, edge trims), sun/heat exposure, aged vinyl wraps or protective films; oily residue on adjacent frames or cloths.

• Assign CAT by visibility at acceptance geometry and MSRT after a small reveal test. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Thin oily veil with wetting anomalies; SC-0; mainly angle/raking visible. Indicative relief: 0–10 μm (optical film).
• CAT-2 (Light): Persistent migration film with nodey contact patches and localized SC-1 from prior wiping; limited standard-view impact. Indicative relief: ~10–40 μm.
• CAT-3 (Moderate): Wide-area oily contamination legible at standard distance (global sheen non-uniformity, strong wetting contrast) with scattered SC-1. Indicative relief: ~40–120 μm (film stack).
• Reclassify when: After true residue lift, any modeled micro-texture or SC>0 persists → evaluate under M.02 (abrasion fields); if boundaries remain extremely sharp and durable, assess Ch.06.02 Hydrophobic coating mismatch halo (applied treatment).
• CAT-5 (by condition/location): Between-pane/inaccessible by parallax, integrity indicators, or confirmed functional-coating loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” removal during classification.

• vs. EPDM gasket black rub (R.05.01): EPDM is grey/black matte along gasket lines; PVC smear is amber/oily with strong wetting contrast and may map blind/trim geometries.
• vs. Fabric softener/additive film (R.04.02): Additive films can also alter wetting but track cleaning paths and fragrance cues; PVC migration aligns to component contact and sun-exposed dwell.
• vs. Silicone/PIB smears (R.01.xx): Sealant smears appear oily/tacky near joints with corduroy/stringers; PVC films are broader, often contact-patterned away from joints.
• vs. Mineral staining/etch (Ch.03): Minerals show rings/runs, crystalline edges; PVC films lack crystalline edges and show oily beading behavior.
• vs. Hydrophobic coating mismatch (Ch.06.02): Mismatch halos have stable, engineered boundaries; PVC films show irregular contact footprints and typically lift on reveal test.

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; raking macros of sheen, contact nodes/lines, wetting contrast; context frames of PVC components in contact/proximity. Record distance/angle in-frame.
2. MSRT result (substrate): After a small reveal test patch, perform one light, non-marring pass; record SC-class (SC-0/SC-1/SC-2).
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.05.02 PVC Plasticizer Smear / Migration Film — Amber/brown oily veil with strong wetting anomalies following PVC contact geometry on surface #___; post-reveal test patch shows [SC-0/SC-1]; visible at [12/36/72 in] under VIS geometry. Morphology: contact nodes/lines, oily gloss, no chip-flank sparkle, no pits. Classification: CAT-[1/2/3] by visibility and SC-class; CAT-5 if between-pane or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

Neoprene roller transfer is an appearance change on glass caused by contact with neoprene-coated rollers or cradle pads during factory conveying, glass washing, staging, or transport. It presents as dotty or patchy contact nodes repeating at roller pitch, sometimes superimposed on smudged linear bands at consistent elevations. Deposits may include neoprene wear fines, plasticizers, and entrained shop dust. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status.

• Repeating “tick” or “node” marks at constant spacing (roller pitch), often along a single horizontal lane.
• Patchy, pebble-like dots (1–5 mm) where roller crowns or dirty sectors contacted the lite; may include a faint linear guide band.
• Multiple lites from the same run show identical elevation/pitch patterns.

• Surface-catch class (MSRT)
• Typically SC-0 (soft transfer on surface).
• SC-1 may present where dust-laden contact or micro-vibration created very shallow micro-texture within the transfer lane; SC-2 suggests misclassification—reassess for M.01 conveyor/belt line scoring.
• Perform one light, non-marring pass on a small revealed test patch (substrate), not across gummy nodes. Use a polymer stylus if a functional coating is suspected. MSRT supports classification only.
• Visual signature
• Evenly spaced node marks mirroring roller circumference; may show phase shift across adjacent panes if conveyed at different timings.
• Smudged band at the same height as storage cradle rails; no chip-flank sparkle (not incision); no fused pits (not hot particle).
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, normal incidence and oblique sweep (~60°–120°); raking macros to resolve node texture, pitch spacing, and band edges. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). If fixed parallax places the pattern on #2/#3 (IGU cavity), classify CAT-5 by location and refer.
• Mechanism cue (context)
• Factory conveyor line, glass washer exit, neoprene cradles, A-frame liners, or handling rollers visible in production/receiving documentation; patterns repeat across same batch.

• Assign CAT by visibility at acceptance geometry and MSRT after a controlled reveal. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Faint node lane or light band; SC-0; mainly angle/raking visible. Indicative relief: 0–10 μm (optical film).
• CAT-2 (Light): Persistent node lane with localized SC-1 (dust-assisted micro-texture); limited standard-view impact. Indicative relief: ~10–40 μm.
• CAT-3 (Moderate): High-contrast, wide lane/band legible at standard distance; scattered SC-1 in nodes; multiple lanes or wide coverage. Indicative relief: ~40–120 μm.
• Reclassify when: After true residue lift, linear incisions with chip-flank sparkle or SC-2 persist → evaluate under M.01.04 Conveyor/belt line scoring or M.01 (linear scoring).
• CAT-5 (by condition/location): Between-pane/inaccessible by parallax, integrity indicators, or confirmed functional-coating loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” removal during classification.

• vs. Roller / handling rail transfer (R.03.03): R.03.03 shows broad level bands without distinct node pitch; neoprene roller shows distinct repeating nodes at constant spacing.
• vs. Suction cup rings (R.03.01): Cup prints are large circles/ovals with lip+puck; neoprene nodes are small, evenly spaced ticks along a lane.
• vs. Paint overspray (R.02.01): Overspray is random speckle lacking constant pitch; neoprene nodes are periodic and align in tracks.
• vs. PVC plasticizer smear (R.05.02): PVC films are oily amber with wetting anomalies; neoprene nodes are grey/dark dots at roller periodicity.
• vs. Conveyor scoring (M.01.04): Scoring has sharp incised lines, chip-flank sparkle, and SC-2; neoprene is film/transfer with SC-0/SC-1.

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; raking macros of node pitch, lane edges, band texture; context frames showing consistent elevation across panes and any conveyors/cradles. Record distance/angle in-frame.
2. MSRT result (substrate): After a small reveal test patch, perform one light, non-marring pass; record SC-class (SC-0/SC-1/SC-2).
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.05.03 Neoprene Roller Transfer — Repeating node lane at roller pitch with smudged band on surface #___; post-reveal test patch shows [SC-0/SC-1]; visible at [12/36/72 in] under VIS geometry. Morphology: periodic ticks, constant elevation, no chip-flank sparkle, no pits. Classification: CAT-[1/2/3] by visibility and SC-class; reclassify to M.01.04 if incised lines persist; CAT-5 if between-pane or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

Aluminum rub / grey smear is an appearance change on glass caused by mechanical contact with aluminum components (frames, extrusions, setting blocks/shims, ladders, straightedges, glazing tools) that leave a metallic grey transfer film. It typically tracks linear contact paths at frame interfaces or along tool routes. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status.

• Cool grey, matte-metallic smear with a directional drag—often linear along jamb/head/sill or straightedge paths.
• Heavier density at start/stop or pressure points; feathered fringes where cloths smeared the transfer.
• May co-occur with fine oxide dust on adjacent aluminum.

• Surface-catch class (MSRT)
• Typically SC-0 (transfer film on top).
• SC-1 appears where dry wiping with dust created very shallow micro-texture within the smear; SC-2 suggests misclassification—check for M.01 linear scoring.
• Perform one light, non-marring pass on a small revealed test patch (substrate). Use polymer stylus if a functional coating is suspected. MSRT supports classification only.
• Visual signature
• Neutral/cool grey metallic tone (not oily amber); directional smear geometry; no discrete pits/nodules.
• No chip-flank sparkle (not an incision) under raking.
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, normal incidence and oblique sweep (~60°–120°); raking macros to show drag direction and smear boundary. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). If parallax shows the smear between panes (#2/#3), classify CAT-5 by location and refer.
• Mechanism cue (context)
• Fresh aluminum work, unprotected straightedges, frame adjustments, ladder contact, glazier tools; aluminum oxide residue on frames.

• Assign CAT by visibility at acceptance geometry and MSRT after a small reveal test. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Light metallic smear; SC-0; mainly angle/raking visible. Indicative relief: 0–10 μm (optical film).
• CAT-2 (Light): Persistent grey smear with localized SC-1 from prior dry wiping; limited standard-view impact. Indicative relief: ~10–40 μm.
• CAT-3 (Moderate): Broad, high-contrast smears/bands legible at standard distance, with scattered SC-1 where soil compacted. Indicative relief: ~40–120 μm.
• Reclassify when: After true residue lift, any incised lines with chip-flank sparkle or SC-2 persist → evaluate under M.01 (linear scoring).
• CAT-5 (by condition/location): Between-pane/inaccessible by parallax, integrity indicators, or confirmed functional-coating loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” removal during classification.

• vs. EPDM gasket rub (R.05.01): EPDM is black/charcoal and tracks gasket lines; aluminum is cool grey metallic and tracks metal/tool contact paths.
• vs. PVC plasticizer smear (R.05.02): PVC is amber/oily with wetting anomalies; aluminum is dry grey without oil beading behavior.
• vs. Steel/ferrous rub (R.06.02): Ferrous rub skews darker/black, may stain fingers, and can show brown oxidation; aluminum remains light grey.
• vs. Hot-particle embed (Th.01.02 ferrous peppering): Hot particle shows micro-pits/fused nodules and local SC-2; aluminum rub is film-like with SC-0/SC-1 and no pits.

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; raking macros of smear edges and drag direction; context frames showing aluminum components/tools. Record distance/angle in-frame.
2. MSRT result (substrate): After a small reveal patch, perform one light, non-marring pass; record SC-class (SC-0/SC-1/SC-2).
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.06.01 Aluminum Rub / Grey Smear — Cool grey metallic smear tracking metal/tool contact on surface #___; post-reveal test patch shows [SC-0/SC-1]; visible at [12/36/72 in] under VIS geometry. Morphology: directional drag, feathered edge, no chip-flank sparkle, no pits. Classification: CAT-[1/2/3] by visibility and SC-class; reclassify to M.01 if incisions persist; CAT-5 if between-pane or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.

Steel / ferrous rub / black smear is an appearance change on glass caused by mechanical contact with carbon steel or ferrous components (fasteners, brackets, trowels, knives, ladders, window bars, site hardware) leaving a dark grey/black transfer. May slowly oxidize to brown at the edges if moisture is present. Classification is appearance-only per VIS (method-agnostic). Inspect after Non-Invasive Reveal under VIS lighting/geometry; record surface numbering and worked-surface status.

• Dark linear smears along hardware contact paths (e.g., ladder foot, trowel edge) or localized arcs at knock points.
• Heavier density and soot-like transfer at pressure loci; can stain cloth dark on wipe.
• In some cases, brownish haloing from surface oxidation.

• Surface-catch class (MSRT)
• Typically SC-0 (transfer film on surface).
• SC-1 appears where dry abrasive wiping or grit under contact created very shallow micro-texture; SC-2 suggests misclassification—check for M.01 linear scoring or Th.01.02 hot-particle embed.
• Perform one light, non-marring pass on a small revealed test patch (substrate). Use polymer stylus if a functional coating is suspected. MSRT supports classification only.
• Visual signature
• Dark grey → black smear, sometimes with brown oxidation edge; directional drag evident; no discrete pits/nodules.
• No chip-flank sparkle (not incision) under raking.
• Viewing / lighting
• Evaluate clean & dry at 12 / 36 / 72 in, normal incidence and oblique sweep (~60°–120°); raking macros to show drag, oxidation halo, edge feather. Record distances/angles in-frame.
• Location / access
• Record pane ID and surface numbering (#1–#4; laminate-internal). If parallax places the smear between panes (#2/#3), classify CAT-5 by location and refer.
• Mechanism cue (context)
• Steel tools/hardware used near glass, ladder rails/feet, masonry trowels, grinders (without sparks contacting) rubbing surfaces; iron fines visible on adjacent materials.

• Assign CAT by visibility at acceptance geometry and MSRT after a small reveal test. Depth values are indicative—field measurement not required.
• CAT-1 (Benign / non-relief): Light dark smear; SC-0; mainly angle/raking visible. Indicative relief: 0–10 μm (optical film).
• CAT-2 (Light): Persistent black smear with localized SC-1 from prior dry wiping/soil; limited standard-view impact. Indicative relief: ~10–40 μm.
• CAT-3 (Moderate): Broad/high-contrast smears legible at standard distance, with scattered SC-1 and possible brown oxidation; indicates extended dwell or repeated contact. Indicative relief: ~40–120 μm.
• Reclassify when: After true residue lift, any incised lines with chip-flank sparkle or SC-2 persist → evaluate under M.01 (linear scoring). If pits/fused nodules present, evaluate Th.01.02 grinder spark embed.
• CAT-5 (by condition/location): Between-pane/inaccessible by parallax, integrity indicators, or confirmed functional-coating loss on the surface to be worked → CAT-5.
• CAT is appearance-based; acceptance is separate under VIS-A at 12/36/72 in. Do not abrade to “force” removal during classification.

• vs. Aluminum rub (R.06.01): Aluminum is cool/light grey; ferrous rub is dark grey/black, can finger-stain, and may oxidize brown.
• vs. EPDM gasket rub (R.05.01): EPDM is black but follows gasket geometry; ferrous rub follows tool/hardware paths and may show oxidation halo.
• vs. Hot-particle embed (Th.01.02): Hot particle shows pit/nodule field, sometimes with rusting dots; ferrous rub is smear-film without pits.
• vs. Soot/particulate pollution (E.01.03): Soot is broad/dirty grey and dry; ferrous rub is localized, directional, and often coincident with hardware contact.

1. Photo set (VIS): 12 / 36 / 72 in, normal + oblique; raking macros of drag, oxidation halo, edge feather; context frames showing steel tools/hardware proximity. Record distance/angle in-frame.
2. MSRT result (substrate): After a small reveal patch, perform one light, non-marring pass; record SC-class (SC-0/SC-1/SC-2).
3. Forms: Pane ID; product family & surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist; photos attached.
4. Acceptance split: Post-restoration acceptance per VIS-A §6; classification ≠ acceptance. Coated-face appearance rules apply per VIS §6.2.e when the worked surface is a factory functional coating.

R.06.02 Steel / Ferrous Rub / Black Smear — Dark grey–black directional smear along hardware/tool contact on surface #___; post-reveal test patch shows [SC-0/SC-1]; visible at [12/36/72 in] under VIS geometry. Morphology: drag path, possible brown oxidation halo, no chip-flank sparkle, no pits. Classification: CAT-[1/2/3] by visibility and SC-class; reclassify to M.01 if incisions persist, or to Th.01.02 if pits/nodules are present; CAT-5 if between-pane or coating-side loss on the surface to be worked. Forms + photo set attached; acceptance per VIS-A §6.