GB/T 3681-2011 塑料 自然日光气候老化、玻璃过滤后日光气候老化和菲涅耳镜加速日光气候老化的暴露试验方法 Plastics—Methods of exposure to direct weathering,to weathering using glass-filtered daylight,and to intensified weathering by daylight using Fresnel mirrors
Plastics—Methods of exposure to direct weathering,to weathering using glass-filtered daylight,and to intensified weathering by daylight using Fresnel mirrors