GB/T 2951.10-1997 电缆绝缘和护套材料通用试验方法　第5部分：填充膏专用试验方法　第1节：滴点——油分离——低温脆性——总酸值——腐蚀性——23℃时的介电常数——23℃和100℃时的直流电阻率

GB/T 2951.10-1997 Common test methods for insulating and sheathing materials of electric cables—Part 5:Methods specific to filling compounds Section two:Drop-point—Separation of oil—Lower temperature brittleness—Total acid number—Absence of corrosive components—Permittivity at 23℃-D.C. resistivity at 23℃ and 100℃