Definitive Text - EN 60465:1990
Specification for unused insulating mineral oils for cables with oil ducts

Definitive Text - HD 487 S1:1987
Determination of water in insulating liquids by automatic coulometric Karl Fischer titration

Definitive Text - EN 60376:2005
Specification of technical grade sulfur hexafluoride (SF6) for use in electrical equipment

Definitive Text - EN 60376:2005
Specification of technical grade sulfur hexafluoride (SF6) for use in electrical equipment

Definitive Text - EN 60376:2005
Specification of technical grade sulfur hexafluoride (SF6) for use in electrical equipment

Definitive Text - EN 60480:2004
Guidelines for the checking and treatment of sulphur hexafluoride (SF6) taken from electrical equipment and specification for its re-use

Definitive Text - EN 60422:2006
Mineral insulating oils in electrical equipment - Supervision and maintenance guidance

Definitive Text - EN 60422:2006
Mineral insulating oils in electrical equipment - Supervision and maintenance guidance

Definitive Text - EN 61221:2004
Petroleum products and lubricants - Triaryl phosphate ester turbine control fluids (category ISO-L-TCD) - Specifications

Definitive Text - EN 60475:2011
Method of sampling insulating liquids

Definitive Text - EN 60475:2011
Method of sampling insulating liquids

Definitive Text - EN 60475:2011
Method of sampling insulating liquids

Definitive Text - EN 60567:2011
Oil-filled electrical equipment - Sampling of gases and analysis of free and dissolved gases - Guidance

Definitive Text - EN 60567:2011
Oil-filled electrical equipment - Sampling of gases and analysis of free and dissolved gases - Guidance

Definitive Text - EN 60567:2011
Oil-filled electrical equipment - Sampling of gases and analysis of free and dissolved gases - Guidance

Definitive Text - EN 60836:2005
Specifications for unused silicone insulating liquids for electrotechnical purposes

Definitive Text - EN 60836:2005
Specifications for unused silicone insulating liquids for electrotechnical purposes

Definitive Text - EN 60836:2005
Specifications for unused silicone insulating liquids for electrotechnical purposes

Definitive Text - EN 60247:2004
Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan d) and d.c. resistivity

Definitive Text - HD 486 S1:1987
Test method for evaluating the oxidation stability of hydrocarbon insulating liquids

Definitive Text - EN 60567:1992
Guide for the sampling of gases and of oil from oil-filled electrical equipment and for the analysis of free and dissolved gases

Definitive Text - EN 50353:2001
Insulating oil - Determination of fibre contamination by the counting method using a microscope

Definitive Text - EN 50353:2001
Insulating oil - Determination of fibre contamination by the counting method using a microscope

Definitive Text - EN 50353:2001
Insulating oil - Determination of fibre contamination by the counting method using a microscope

Definitive Text - EN 60599:1999
Mineral oil-impregnated electrical equipment in service - Guide to the interpretation of dissolved and free gases analysis

Definitive Text - EN 50375:2002
Testing methodology for wipers used in electrical insulating oil

Definitive Text - EN 50375:2002
Testing methodology for wipers used in electrical insulating oil

Definitive Text - EN 50375:2002
Testing methodology for wipers used in electrical insulating oil

Definitive Text - EN 62021-1:2003
Insulating liquids - Determination of acidity - Part 1: Automatic potentiometric titration

Definitive Text - EN 60156:1995
Insulating liquids - Determination of the breakdown voltage at power frequency - Test method

Definitive Text - EN 60867:1994
Insulating liquids - Specifications for unused liquids based on synthetic aromatic hydrocarbons

Definitive Text - EN 60599:1999/A1:2007
Mineral oil-impregnated electrical equipment in service - Guide to the interpretation of dissolved and free gases analysis

Definitive Text - EN 60599:1999/A1:2007
Mineral oil-impregnated electrical equipment in service - Guide to the interpretation of dissolved and free gases analysis

Definitive Text - EN 60599:1999/A1:2007
Mineral oil-impregnated electrical equipment in service - Guide to the interpretation of dissolved and free gases analysis

Definitive Text - EN 60970:2007
Insulating liquids - Methods for counting and sizing particles

Definitive Text - EN 60970:2007
Insulating liquids - Methods for counting and sizing particles

Definitive Text - EN 62021-2:2007
Insulating liquids - Determination of acidity - Part 2: Colourimetric titration

Definitive Text - EN 62021-2:2007
Insulating liquids - Determination of acidity - Part 2: Colourimetric titration

Definitive Text - EN 62021-2:2007
Insulating liquids - Determination of acidity - Part 2: Colourimetric titration

Definitive Text - EN 61125:1993
Unused hydrocarbon-based insulating liquids - Test methods for evaluating the oxidation stability

Definitive Text - EN 61198:1994
Mineral insulating oils - Methods for the determination of 2-furfural and related compounds

Definitive Text - EN 61065:1993
Method for evaluating the low temperature flow properties of mineral insulating oils after ageing

Definitive Text - EN 61144:1993
Test method for the determination of oxygen index of insulating liquids

Definitive Text - EN 60970:2007
Insulating liquids - Methods for counting and sizing particles

Definitive Text - EN 61620:1999
Insulating liquids - Determination of the dielectric dissipation factor by measurement of the conductance and capacitance - Test method

Definitive Text - HD 497 S1:1987
Specifications for unused insulating liquids based on synthetic aromatic hydrocarbons

Definitive Text - HD 488 S1:1987
Gassing of insulating liquids under electrical stress and ionization

Definitive Text - HD 382 S1:1979
Determination of the aromatic hydrocarbon content of new mineral insulating oils

Definitive Text - HD 397 S1:1979
Interpretation of the analysis of gases in transformers and other oil-filled electrical equipment in service

Definitive Text - HD 582 S1:1991
Specification for unused polybutenes

Definitive Text - EN 61181:1993
Impregnated insulating materials - Application of dissolved gas analysis (DGA) to factory tests on electrical equipment

Definitive Text - HD 565 S1:1993
Specifications for silicone liquids for electrical purposes

Definitive Text - EN 61100:1992
Classification of insulating liquids according to fire point and net calorific value

Definitive Text - HD 618 S1:1992
General classification of insulating liquids

Definitive Text - EN 61197:1994
Insulating liquids - Linear flame propagation - Test method using a glass-fibre tape

Definitive Text - EN 61221:1995
Petroleum products and lubricants - Triaryl phosphate ester turbine control fluids (category ISO-L-TCD) - Specifications

Definitive Text - EN 61203:1994
Synthetic organic esters for electrical purposes - Guide for maintenance of transformer esters in equipment

Definitive Text - EN 60666:2010
Detection and determination of specified additives in mineral insulating oils

Definitive Text - EN 60666:2010
Detection and determination of specified additives in mineral insulating oils

Definitive Text - EN 60666:2010
Detection and determination of specified additives in mineral insulating oils

Definitive Text - HD 415 S1:1981
Detection and determination of specified anti-oxidant additives in insulating oils

Definitive Text - EN 60970:2007/corrigendum Jan. 2008
Insulating liquids - Methods for counting and sizing particles

Definitive Text - EN 60970:2007/corrigendum Jan. 2008
Insulating liquids - Methods for counting and sizing particles

Definitive Text - EN 60970:2007/corrigendum Jan. 2008
Insulating liquids - Methods for counting and sizing particles

Definitive Text - EN 60567:2005
Oil-filled electrical equipment - Sampling of gases and of oil for analysis of free and dissolved gases - Guidance

Definitive Text - EN 62535:2009
Insulating liquids - Test method for detection of potentially corrosive sulphur in used and unused insulating oil

Definitive Text - EN 62535:2009
Insulating liquids - Test method for detection of potentially corrosive sulphur in used and unused insulating oil

Definitive Text - EN 62535:2009
Insulating liquids - Test method for detection of potentially corrosive sulphur in used and unused insulating oil

Definitive Text - EN 60567:2005
Oil-filled electrical equipment - Sampling of gases and of oil for analysis of free and dissolved gases - Guidance

Definitive Text - EN 60567:2005
Oil-filled electrical equipment - Sampling of gases and of oil for analysis of free and dissolved gases - Guidance

Definitive Text - EN 61619:1997
Insulating liquids - Contamination by polychlorinated biphenyls (PCBs) - Method of determination by capillary column gas chromatography

Definitive Text - EN 60814:1997
Insulating liquids - Oil-impregnated paper and pressboard - Determination of water by automatic coulometric Karl Fischer titration

Definitive Text - EN 61868:1999
Mineral insulating oils - Determination of kinematic viscosity at very low temperatures

Definitive Text - EN 61125:1993/A1:2004
Unused hydrocarbon-based insulating liquids - Test methods for evaluating the oxidation stability

Definitive Text - EN 61144:1993/corrigendum Dec. 1993
Test method for the determination of oxygen index of insulating liquids

Definitive Text - EN 61144:1993/corrigendum Dec. 1993
Test method for the determination of oxygen index of insulating liquids

Definitive Text - EN 61144:1993/corrigendum Dec. 1993
Test method for the determination of oxygen index of insulating liquids

Definitive Text - EN 61099:2010
Insulating liquids - Specifications for unused synthetic organic esters for electrical purposes

Definitive Text - EN 61099:2010
Insulating liquids - Specifications for unused synthetic organic esters for electrical purposes

Definitive Text - EN 61099:2010
Insulating liquids - Specifications for unused synthetic organic esters for electrical purposes

Definitive Text - EN 61099:1992
Specification for unused synthetic organic esters for electrical purposes

Definitive Text - EN 60296:2004
Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear

Definitive Text - EN 60296:2004/corrigendum Sep. 2004
Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear

Definitive Text - EN 60296:2004/corrigendum Sep. 2004
Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear

Definitive Text - EN 60296:2004/corrigendum Sep. 2004
Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear

Definitive Text - EN 60296:2012
Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear

Definitive Text - EN 60296:2012
Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear

Definitive Text - EN 60422:2013
Mineral insulating oils in electrical equipment - Supervision and maintenance guidance

Definitive Text - EN 60422:2013
Mineral insulating oils in electrical equipment - Supervision and maintenance guidance

Definitive Text - EN 60422:2013
Mineral insulating oils in electrical equipment - Supervision and maintenance guidance

Definitive Text - EN 60422:2006
Mineral insulating oils in electrical equipment - Supervision and maintenance guidance

Definitive Text - EN 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)

Definitive Text - EN 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)

Definitive Text - EN 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)