IEC 62021-3:2014
Insulating liquids - Determination of acidity - Part 3: Test methods for non-mineral insulating oils
Abstract
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.
Additional information
Publication type | International Standard |
---|---|
Publication date | 2014-03-19 |
Edition | 1.0 |
Available language(s) | English/French, Spanish |
TC/SC | TC 10 - Fluids for electrotechnical applicationsrss |
ICS | 29.040.10 - Insulating oils |
Stability date | 2026 |
Pages | 50 |
File size | 1427 KB |
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