物理安全检测
ASTM D257绝缘材料直流电阻或电导标准试验方法
ASTM D257绝缘材料直流电阻或电导的标准试验方法—标准名称
ASTM D257 Standard Test Methods for DC Resistance or Conductance of Insulating Materials
ASTM D257绝缘材料直流电阻或电导标准试验方法
ASTM D257绝缘材料直流电阻或电导的标准试验方法—适用范围
Scope:
These test methods cover direct-current procedures for the measurement of dc insulation resistance, volume resistance, and surface resistance. From such measurements and the geometric dimensions of specimen and electrodes, both volume and surface resistivity of electrical insulating materials can be calculated, as well as the corresponding conductances and conductivities
ASTM D257绝缘材料直流电阻或电导的标准试验方法—引用文件
ASTM D150 Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation
ASTM D374 Test Methods for Thickness of Solid Electrical Insulation
ASTM D1169 Test Method for Specific Resistance (Resistivity) of Electrical Insulating Liquids
ASTM D1711 Terminology Relating to Electrical Insulation
ASTM D4496 Test Method for D-C Resistance or Conductance of Moderately Conductive Materials
ASTM D5032 Practice for Maintaining Constant Relative Humidity by Means of Aqueous Glycerin Solutions
ASTM D6054 Practice for Conditioning Electrical Insulating Materials for Testing
ASTM E104 Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions
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