ASTM D1903爱斯开乐电解液和石油原油热澎涨系数的标准试验方法
日期:2012-02-10 10:22
elastic device filled with the liquid after the liquid has cooled to a lower temperature.
1. Scope
1.1 This practice covers the determination of the coef-ficient of thermal expansion of electrical insulating liquids of petroleum origin, and askarels, containing PCBs (polychlorinated biphenyls), when used as an insulating or cooling medium, or both, in cables, transformers, oil circuit breakers, capacitors, or similar apparatus.
1.2 The values stated in SI units are to be regarded as standard. No
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