GB/T 2951.21-2008

Common test methods for insulating and sheathing materials of electric and optical cables - Part 21:Methods specific to elastomeric compounds - Ozone resistance, hot set and mineral oil immersion tests

电缆和光缆绝缘和护套材料通用试验方法 第21部分：弹性体混合料专用试验方法 耐臭氧试验-热延伸试验-浸矿物油试验