Damage categories and surface conditions

Alteration of an image seen in reflection from a glass surface or glazing assembly.

Alteration of an image seen through glass rather than in reflection from its surface.

A change in the apparent shape or position of an image viewed through or reflected by glass due to variations in flatness, curvature, thickness, refractive properties, assembly, or installation.

Optical distortion concentrated in a limited area rather than distributed across the full lite or in a regular manufacturing pattern.

A rubbed or abraded area of a glass coating that changes gloss, color, reflectance, transmittance, or continuity without necessarily forming one narrow scratch.

Partial or complete loss of an applied coating from a glass surface through abrasion, scraping, chemical action, weathering, or deliberate deletion.

The shortest measured distance from a damage feature or proposed work area to the nearest glass edge, hole, notch, cutout, or other stress-concentrating boundary.

A linear disruption of an applied glass coating that changes its appearance, continuity, or performance.

The number, total length, affected area, or other stated amount of damage within a defined surface area.

The measured lateral width of a scratch at a stated surface reference, magnification, or intensity boundary.