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See Chinese contents: GB/T 31973-2015 GB/T 31973-2015: Natural weathering exposure tests for automotive non-metallic materials and parts
This Standard specifies the principle, exposure site, equipment on exposure site, test sample, test duration, test procedure, and test report of the natural weathering exposure tests for automotive non-metallic materials and parts. This Standard is applicable to the natural weathering exposure tests for automotive non-metallic materials and parts.
