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IEC 62021-3:2014 ED1

Insulating liquids - Determination of acidity - Part 3: Test methods for non-mineral insulating oils
19 mar 2014

General information

60.60     19 mar 2014

IEC

TC 10

International Standard

29.040.10  

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Scope

IEC 62021-3:2014 describes two procedures for the determination of the acidity of unused and used electrical non-mineral insulating oils. Method A is potentiometric titration and Method B is colourimetric titration. The method may be used to indicate relative changes that occur in non-mineral insulating oil during use under oxidizing conditions regardless of the colour or other properties of the resulting non-mineral oil. The acidity can be used in the quality control of unused non-mineral insulating oil. As a variety of oxidation products present in used non-mineral insulating oil contribute to acidity and these products vary widely in their corrosion properties, the test cannot be used to predict corrosiveness of non-mineral insulating oil under service conditions.

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PUBLISHED
IEC 62021-3:2014 ED1
60.60 Standard published
19 mar 2014