1.1 This standard covers methods of test for determining the presence of ionizable soluble organic and/or inorganic materials in electrical insulating materials.
1.2 The presence of ionic impurities is confirmed by the increase in volume conductivity of the liquid extract.
IS 10581-1983 history
1983IS 10581-1983 Test Method for Determination of Ionic Impurities in Electrical Insulating Materials by Liquid Extraction