IEC 60050-212:2010/AMD1:2015

Amendment 1 - International Electrotechnical Vocabulary (IEV) - Part 212: Electrical insulating solids, liquids and gases

IEC 62770:2013

Fluids for electrotechnical applications - Unused natural esters for transformers and similar electrical equipment

IEC 62697-1:2012

Test methods for quantitative determination of corrosive sulfur compounds in unused and used insulating liquids - Part 1: Test method for quantitative determination of dibenzyldisulfide (DBDS)

IEC 61620:1998

Insulating liquids - Determination of the dielectric dissipation factor by measurement of the conductance and capacitance - Test method