IEC 61868:1998

Mineral insulating oils - Determination of kinematic viscosity at very low temperatures

IEC 60814:1997

Insulating liquids - Oil-impregnated paper and pressboard - Determination of water by automatic coulometric Karl Fischer titration

IEC 61619:1997

Insulating liquids - Contamination by polychlorinated biphenyls (PCBs) - Method of determination by capillary column gas chromatography

IEC 61065:1991/COR1:1993

Corrigendum 1 - Method for evaluating the low temperature flow properties of mineral insulating oils after ageing

IEC TR 61294:1993

Insulating liquids - Determination of the partial discharge inception voltage (PDIV) - Test procedure

IEC 61197:1993

Insulating liquids - Linear flame propagation - Test method using a glass-fibre tape

IEC 61198:1993

Mineral insulating oils - Methods for the determination of 2-furfural and related compounds

IEC 61144:1992

Test method for the determination of oxygen index of insulating liquids

IEC 61203:1992

Synthetic organic esters for electrical purposes - Guide for maintenance of transformer esters in equipment

IEC 61065:1991

Method for evaluating the low temperature flow properties of mineral insulating oils after ageing

IEC 60963:1988

Specification for unused polybutenes

IEC 60465:1988

Specification for unused insulating mineral oils for cables with oil ducts

IEC 60944:1988

Guide for the maintenance of silicone transformer liquids

IEC 60897:1987

Methods for the determination of the lightning breakdown voltage of insulating liquids

IEC 60628:1985/COR1:1986

Corrigendum 1 - Gassing of insulating liquids under electrical stress and ionization

IEC 60628:1985

Gassing of insulating liquids under electrical stress and ionization

IEC 60588-5:1979

Askarels for transformers and capacitors. Part 5: Screening test for compatibility of materials and transformer askarels

IEC 60588-6:1979

Askarels for transformers and capacitors. Part 6: Screening test for effects of materials on capacitor askarels

IEC 60588-4:1979

Askarels for transformers and capacitors. Part 4: Guide for maintenance of transformer askarels in equipment

IEC 60590:1977/COR1:1978

Corrigendum 1 - Determination of the aromatic hydrocarbon content of new mineral insulating oils