Damage length

The measured end-to-end extent of an individual damage feature along its principal path.

Meaning and boundaries

Length does not capture width, depth, branching, cluster density, edge distance, or the total work area.

Why it matters in glass restoration

Consistent length measurement supports inspection records, specification comparisons, material-removal planning, and post-work verification.

Related terms

• Linear blemish
• Scratch width
• Scratch depth
• Damage density

References

• ASTM International — ASTM C1036-25: Standard Specification for Flat Glass
  Publisher’s original source
• ASTM International — ASTM C1376-21a: Pyrolytic and Vacuum Deposition Coatings on Flat Glass
  Publisher’s original source
• National Glass Association — GANA Glazing Manual, 2022 edition
  Publisher’s original source