Astm G7 Pdf

The ASTM G7 standard is available in PDF format from the ASTM International website or through online libraries and databases.

A manufacturer of architectural coatings uses ASTM G7 to compare three formulations. Specimens are mounted on a 45° south-facing rack in Florida (high UV, humidity) and Arizona (high UV, dry heat). Every 3 months, color change (ASTM D2244) and gloss loss (ASTM D523) are measured. Results guide formulation improvements before market launch. astm g7 pdf