Sets out specification and test methods for unused insulating liquids, as delivered, with or without additives, intended for use in transformers, switchgear and similar electrical equipment in which liquid is required as an insulant or for heat transfer. Includes details of bulk transport sampling, specification and laboratory testing. This Standard is based on but is not technically equivalent to and has been reproduced from IEC 60296:1982 and IEC 60296:1982/Amd.1:1986