DSS-P.03.01 — Seamed / Arris Edge Texture (as-processed edge finish)

Seamed/arris edge texture is the factory edge finish produced by light grinding to remove sharpness after cutting. It may appear as a narrow frosted/ground band at the perimeter or as micro-striations normal to the edge. This is a manufacturing edge feature, not a worked-surface defect. Evaluate observations under VIS lighting/geometry; product/ factory acceptance criteria are distinct from post-restoration acceptance governed by VIS.

• Uniform, narrow band (typically a few millimetres wide) of matte/frosted texture along the edge arris; may show fine, parallel grind lines.
• Visibility depends on angle/raking light and background contrast; does not change with Non-Invasive Reveal (clean/dry).

Surface-catch class (MSRT):

• On the face area adjacent to the edge: SC-0 (none) for the factory arris itself (no local worked-surface relief on the face). Perform one light, non-marring pass per VIS §5.5; do not abrade or repeat.

Visual signature:

• Non-directional frosted/matte edge band without a transition edge on the face and without chip flanks. (If chip flanks or pits/craters are present on the face, evaluate under M.03/M.04 families.)

Viewing/lighting:

• Inspect at 12 / 36 / 72 in using normal incidence and oblique sweep (~60°-120°) with raking light; surfaces clean/dry. Scan edges and corners at each distance.

Location/access:

• Document pane ID and surface numbering (#1-#4; laminate-internal) on forms; acceptance pertains to the exposed surface under evaluation.

• Processing feature - not surface damage. When observation confirms uniform factory arris with SC-0 on the face and no transition edge, record “Processing Feature - Not Surface Damage (outside CAT-1...CAT-4).”
• Escalate when:
• Edge micro-chips / clamshells propagate onto the face with clear catch or bright flanks → classify per M.03 (edge & corner) at CAT-3/4 by morphology.
• Between-pane/inaccessible cues (fixed parallax in IGU rabbet area) → CAT-5 by location/condition; refer per project protocol.

• Factory arris is edge-only matte texture; no measurable relief on the face area (SC-0) unless accompanied by chips/pits (then classify by M.03/M.04 morphology rather than assigning numeric depth).

• vs. Abrasion fields on face (M.02): Abrasion shows directional/web texture on the face and can escalate to slight/clear catch; a factory arris remains edge-bound and SC-0 on the face.
• vs. Coating anomalies (Co.01/Co.03): Coating rub/patchiness is localized on the worked surface and disallowed at acceptance when coatings are present; factory arris is an edge feature, not a coating change.
• vs. Hot-particle peppering (Th.01): Thermal pits present bright chip flanks and clear catch on the face; arris texture does not.

• Photo set (VIS): 12 / 36 / 72 in, normal + oblique; include raking usage; capture one frame showing edge band continuity across a long run to establish factory uniformity.
• MSRT result: Record SC-0 on the face adjacent to the arris; one pass only; non-marring.
• Forms: Pane ID; product family and surface numbering; worked surface Y/N; functional coating present on worked surface? (Y/N/Unknown); reveal status; lighting/time; geometry checklist.
• Acceptance split: VIS governs post-restoration appearance; factory edge finishes follow product standards/project specs-do not conflate.

Attempting to “blend out” the factory edge frost onto the face can create a worked region with a visible transition edge, which VIS disallows at acceptance (CAT-0...CAT-4). Keep classification appearance-only unless face damage is present.

• P.03.01 Seamed/Arris Edge Texture (Processing Feature) - Uniform factory arris observed; MSRT on face = SC-0 (no surface relief). No transition edge or chip-flank morphology on the face. Recorded as manufacturing edge finish; not categorized as surface damage under VIS-DA. If face chips/pits exist, classify under M.03/M.04 by CAT and morphology; if between-pane cues are involved, record CAT-5 and refer per project protocol.