ASTM D7150测定低温热应力下绝缘液体放气特性的标准试验方法
日期:2012-02-08 11:09
oil to produce certain gases such as hydrogen and hydrocarbons at low temperatures.
1.4 This test method details two procedures:
1.5 Method A describes the procedure for determining the gassing characteristics of a new, unused insulating liquid, as received, at 120C for 164 h.
1.6 Method B describes the procedure for processing the insulating liquid through an attapulgite clay column to remove organic contaminants and other reactive groups that may influence the gassing behavior of an insulatin
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