Describes a method for assessing the changes in activity of pour point depressant additives in inhibited and uninhibited mineral insulating oils when aged in the presence of insulating kraft paper.
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HD 486 S1:1987 Test method for evaluating the oxidation stability of hydrocarbon insulating liquids
IEC 60450:1974 Measurement of the average viscometric degree of polymerization of new and aged electrical papers
IEC 60554-3-1:1979 Specification for cellulosic papers for electrical purposes. Part 3-1: Specifications for individual materials. General purpose electrical paper
HD 486 S1:1987 Test method for evaluating the oxidation stability of hydrocarbon insulating liquids
IEC 60450:1974 Measurement of the average viscometric degree of polymerization of new and aged electrical papers
IEC 60554-3-1:1979 Specification for cellulosic papers for electrical purposes. Part 3-1: Specifications for individual materials. General purpose electrical paper