: Specimens are attached to a solid substrate, like plywood, which can increase surface temperature and simulate certain end-use conditions.
: This practice specifically covers materials exposed directly to the environment, unlike ASTM G24 , which focuses on exposure behind glass. astm g7 pdf
: Specimens are mounted on a black-painted aluminum box to simulate the higher temperatures experienced by materials like automotive coatings. : Specimens are attached to a solid substrate,
: Testing is typically performed on racks tilted at specific angles from the horizontal (commonly 5° or 45° ) and facing the equator to maximize solar radiation. unlike ASTM G24
