GB/T 2951.21-2008
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
Common test methods for insulating and sheathing materials of electric and optical cables.Part21:Methods specific to elastomeric compounds.Ozone resistance,hot set and mineral oil immersion tests
GBT2951.21-2008, GB2951.21-2008