LL-9031 Q-TRAC Natural Sunlight Concentrator Accelerated Natural Outdoor Exposures
Technical Bulletins
LL-9031
Download FileBackground In the early 1900s, researchers began to assess the weatherability of materials by exposing specimens outdoors on vertical, south-facing racks. By 1908, members of ASTM Committee D-1 and the Paint Manufacturer’s Associati...
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