HD 505.4.1 S1-1988 电缆绝缘护套材料的通用试验方法.第4部分:聚乙烯和聚丙烯专用方法.第1节:耐环境应力破裂性.在空气中热老化后的卷绕试验.熔体流动指数测量.聚乙烯中炭黑和(或)矿物质含量的测定
Test Methods - Insulating/Sheathing Materials of Electric Cables Part 4: Polyethylene/Polypropylene Compounds Section One - Resistance - Environmental Stress Cracking - Wrapping Test Thermal Ageing in Air - Measurement of Melt Flow Index - Carbon Black