: Determining colorfastness and physical stability under direct sunlight. Where to Find the ASTM G7 PDF
: This practice specifically covers materials exposed directly to the environment, unlike ASTM G24 , which focuses on exposure behind glass. astm g7 pdf
ASTM G7 is a standard practice that provides guidelines for operating fluorescent ultraviolet (UV) and xenon arc type environmental chambers. These chambers are used to simulate the effects of environmental factors such as UV radiation, temperature, and humidity on materials and products. unlike ASTM G24
: Vertical orientation, simulating walls or upright structures. astm g7 pdf
ASTM G7 allows for different mounting techniques depending on the material's end-use: Direct Natural Weathering