Home / Standards / GB/T 21221-2007 GB/T 21221-2007 Abolished Insulating liquids - Specifications for unused insulating liquids based on synthetic aromatic hydrocarbons 绝缘液体 以合成芳烃为基的未使用过的绝缘液体 Standard Type GBT ICS 29.035.99 CCS K15 Status 废止 Issue Date 2007-12-03 Implementation 2008-05-20 Responsible Dept 中国电器工业协会 Drafting Unit N/A