兑水 发表于 2009-9-26 11:09:34

ASTM D 924-2004 电绝缘液体的损耗因数(或功率因数)和介电常...

D924-03a Standard Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical Insulating Liquids
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