NF C26-631-3-1*NF EN 62631-3-1:2016 固体绝缘材料的介电和电阻特性 第3-1部分:电阻特性的测定(直流方法)体积电阻和体积电阻率 通用方法
Dielectric and resistive properties of solid insulating materials - Part 3-1 : determination of resistive properties (DC Methods) - Volume resistance and volume resistivity - General method