: Materials are typically mounted on racks at a specific angle—often 45° South in the northern hemisphere—to maximize solar radiation intake. Exposure Types :
Characterized by intense, high-UV solar radiation, extreme summer temperatures, and very low humidity. This environment maximizes thermal shock and UV-driven photo-oxidation, making it ideal for testing physical degradation like cracking, embrittlement, and warping. Materials Commonly Tested Under ASTM G7 astm g7 pdf
Covers natural, outdoor atmospheric exposure. It takes months or years to yield results but offers absolute real-world fidelity. : Materials are typically mounted on racks at
It is common to confuse ASTM G7 with standards like ASTM G154 or ASTM G155. Materials Commonly Tested Under ASTM G7 Covers natural,
The selection of test sites is critical to ensure that the exposure conditions are representative of the intended end-use environment. Factors to consider when selecting test sites include: