Inspection and repair decisions

Determination of whether a coating is present, its function or product family when possible, and the surface on which it is located.

Determination of whether glass is annealed, heat-strengthened, or fully tempered using available records, marks, instruments, and qualified interpretation.

Evidence-based confirmation of the glass construction and treatment relevant to the proposed work.

The documented state of the glass and surrounding assembly before cleaning, testing, or restoration begins.

Determination of which physical glass face is exposed and whether it carries a coating, film, frit, paint, treatment, residue, or other layer.

A diagram, annotated image, or coordinate record showing the type, location, size, and distribution of damage on a lite or assembly.

A dated image made to record the glass, its context, and a specific condition under documented viewing conditions.

An optical or digital enlargement used to examine features smaller than can be characterized reliably with unaided vision.

A known-size ruler, target, or calibrated feature placed in the same plane as photographed or measured damage.

Evaluation of features using light and images reflected from a glass surface or glazing assembly.