This European Standard describes three test methods using the same apparatus for evaluating the oxidation stability of mineral insulating oils and of hydrocarbon-based insulating liquids.
DS/EN 61125/A1:2004 history
2004DS/EN 61125/A1:2004 Unused hydrocarbon-based insulating liquids - Test methods for evaluating the oxidation stability
1994DS/EN 61125:1994 Unused hydrocarbon-based insulation liquids -Test methods for evaluating the oxidation stability