DIN IEC 60093:1993 電氣絕緣材料試驗(yàn)方法.固體電氣絕緣材料的體積電阻率和表面電阻率
Methods of test for insulating materials for electrical purposes; volume resistivity and surface resistivity of solid electrical insulating materials (IEC 60093:1980); German version HD 429 S1:1983