Revised Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard which is identical with IEC 61125 : 2018 ‘Insulating liquids - Test methods for oxidation stability test method for evaluating the oxidation stability of insulating liquids in the delivered state’ issued by the International Electrotechnical Commission (IEC) was adopted by the Bureau of Indian Standards on the recommendation of the Fluids for Electrotechnical Applications Sectional Committee and approval of the Electrotechnical Division Council.

This standard was first published in 1988. The first revision of this standard was brought out in 2017. This second revision has been undertaken to align this standard with the latest version of IEC 61125 : 2018.