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  • EN 60296:2012

    View superseded by
    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
    View superseded by

    Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear

    Available format(s): 

    Superseded date:  27-08-2020

    Language(s): 

    Published date:  20-04-2012

    Publisher:  European Committee for Standards - Electrical

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    Table of Contents - (Show below) - (Hide below)

    FOREWORD
    INTRODUCTION
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Properties of oil
    5 Classification, identification, general delivery
      requirements and sampling
    6 Properties, their significance and test methods
    7 Specific requirements for special applications
    Annex A (informative) - Potentially corrosive sulphur
    Bibliography
    Annex ZA (normative) - Normative references to
             international publications with their
             corresponding European publications
    Annex ZB (normative) - Special national conditions

    Abstract - (Show below) - (Hide below)

    NEW! IEC 60296:2012 is now available as IEC Standards+ 60296:2012 which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60296:2012 is applicable to specifications and test methods for unused mineral insulating oils. It applies to oil intended for use in transformers, switchgear and similar electrical equipment in which oil is required for insulation and heat transfer. This edition includes the following significant technical changes with respect to the previous edition: - specifications for corrosive sulphur compounds that can lead to copper sulphide deposition in transformers (in non-passivated and passivated oils); - definitions of additives in oil; and - re-insertion of a missing note on oxidation.

    General Product Information - (Show below) - (Hide below)

    Committee CLC/SR 10
    Document Type Standard
    Publisher European Committee for Standards - Electrical
    Status Superseded
    Superseded By

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS EN 61869-1:2009 Instrument transformers General requirements
    CEI EN 50216-9 : 2010 POWER TRANSFORMER AND REACTOR FITTINGS - PART 9: OIL-TO-WATER HEAT EXCHANGERS
    DD CLC/TS 50537-2:2010 Railway applications. Mounted parts of the traction transformer and cooling system Pump for insulating liquid for traction transformers and reactors
    BS EN 60076-13:2006 Power transformers Self-protected liquid-filled transformers
    I.S. EN 62271-100:2009 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 100: ALTERNATING-CURRENT CIRCUIT-BREAKERS
    BS EN 60695-1-40:2014 Fire hazard testing Guidance for assessing the fire hazard of electrotechnical products. Insulating liquids
    CEI EN 60076-14 : 2014 POWER TRANSFORMERS - PART 14: LIQUID-IMMERSED POWER TRANSFORMERS USING HIGH-TEMPERATURE INSULATION MATERIALS
    I.S. EN 60684-3-284:2014 FLEXIBLE INSULATING SLEEVING - PART 3: SPECIFICATIONS FOR INDIVIDUAL TYPES OF SLEEVING - SHEET 284: HEAT-SHRINKABLE, SLEEVINGS, FOR OIL BARRIER APPLICATIONS
    S.R. CLC/TR 50503:2010 GUIDELINES FOR THE INVENTORY CONTROL, MANAGEMENT, DECONTAMINATION AND/OR DISPOSAL OF ELECTRICAL EQUIPMENT AND INSULATING LIQUIDS CONTAINING PCBS
    BS EN 60836:2015 Specifications for unused silicone insulating liquids for electrotechnical purposes
    04/30123995 DC : DRAFT OCT 2004 EN 50216-10 - POWER TRANSFORMER AND REACTOR FITTINGS - PART 10: OIL-TO-AIR HEAT EXCHANGERS
    BS 7933-2:2007 Electric cables. Accessories. Material characterisation Fingerprinting and type tests for heat shrinkable components for low voltage applications
    11/30235280 DC : 0 BS EN 50152-1 - RAILWAY APPLICATIONS - FIXED INSTALLATIONS - PARTICULAR REQUIREMENTS FOR ALTERNATING CURRENT SWITCHGEAR - PART 1: CIRCUIT-BREAKERS WITH NOMINAL VOLTAGE ABOVE 1 KV
    BS EN 50216-10:2009 Power transformer and reactor fittings Oil-to-air heat exchangers
    CEI 20-95 : 2010 ELECTRIC CABLES - ACCESSORIES - MATERIAL CHARACTERISATION - PART 2: FINGERPRINTING AND TYPE TESTS FOR HEAT SHRINKABLE COMPONENTS FOR LOW VOLTAGE APPLICATIONS
    I.S. EN 62701:2014 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - RECYCLED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEARS
    I.S. EN 60641-2:2004 SPECIFICATION FOR PRESSBOARD AND PRESSPAPER FOR ELECTRICAL PURPOSES - METHODS OF TEST
    I.S. EN 60684-3-214:2014 FLEXIBLE INSULATING SLEEVING - PART 3: SPECIFICATIONS FOR INDIVIDUAL TYPES OF SLEEVING - SHEET 214: HEAT-SHRINKABLE, POLYOLEFIN SLEEVING, NOT FLAME RETARDED, THICK AND MEDIUM WALL
    CEI CLC/TS 50537-2 : 2011 RAILWAY APPLICATIONS - MOUNTED PARTS OF THE TRACTION TRANSFORMER AND COOLING SYSTEM - PART 2: PUMP FOR INSULATING LIQUID FOR TRACTION TRANSFORMERS AND REACTORS
    EN 62271-1:2017 High-voltage switchgear and controlgear - Part 1: Common specifications for alternating current switchgear and controlgear
    S.R. CLC/TS 50537-2:2010 RAILWAY APPLICATIONS - MOUNTED PARTS OF THE TRACTION TRANSFORMER AND COOLING SYSTEM - PART 2: PUMP FOR INSULATING LIQUID FOR TRACTION TRANSFORMERS AND REACTORS
    I.S. EN 60076-14:2013 POWER TRANSFORMERS - PART 14: LIQUIDIMMERSED POWER TRANSFORMERS USING HIGH-TEMPERATURE INSULATION MATERIALS (IEC 60076-14:2013 (EQV))
    CEI EN 60684-3-247 : 2012 FLEXIBLE INSULATING SLEEVING - PART 3: SPECIFICATIONS FOR INDIVIDUAL TYPES OF SLEEVING - SHEET 247: HEAT-SHRINKABLE POLYOLEFIN SLEEVING, DUAL WALL, NOT FLAME RETARDED, THICK AND MEDIUM WALL
    HD 631.2 : 2007 ELECTRIC CABLES - ACCESSORIES - MATERIAL CHARACTERISATION - PART 2: FINGERPRINTING AND TYPE TESTS FOR HEAT SHRINKABLE COMPONENTS FOR LOW VOLTAGE APPLICATIONS
    EN 60137:2017 Insulated bushings for alternating voltages above 1 000 V
    DIN EN 14598-3:2005-07 Reinforced thermosetting moulding compounds - Specification for Sheet Moulding Compound (SMC) and Bulk Moulding Compound (BMC) - Part 3: Specific requirements
    DIN EN 14598-2:2005-07 Reinforced thermosetting moulding compounds - Specification for Sheet Moulding Compound (SMC) and Bulk Moulding Compound (BMC) - Part 2: Methods of test and general requirements
    IEC 62011-2:2004 Insulating materials - Industrial, rigid, moulded, laminated tubes and rods of rectangular and hexagonal cross-section, based on thermosetting resins for electrical purposes - Part 2: Methods of test
    CLC/TS 50458 : 2006 Capacitance graded outdoor bushing 52 kV up to 420 kV for oil immersed transformers
    EN 60684-3-281 : 2010 FLEXIBLE INSULATING SLEEVING - PART 3: SPECIFICATIONS FOR INDIVIDUAL TYPES OF SLEEVING - SHEET 281: HEAT-SHRINKABLE, POLYOLEFIN SLEEVING, SEMICONDUCTIVE
    EN 60851-4:2016 Winding wires - Test methods - Part 4: Chemical properties
    EN 60243-1:2013 ELECTRIC STRENGTH OF INSULATING MATERIALS - TEST METHODS - PART 1: TESTS AT POWER FREQUENCIES (IEC 60243-1:2013)
    EN 60684-3-282 : 2010 FLEXIBLE INSULATING SLEEVING - PART 3: SPECIFICATIONS FOR INDIVIDUAL TYPES OF SLEEVING - SHEET 282: HEAT-SHRINKABLE, POLYOLEFIN SLEEVING - STRESS CONTROL
    EN 62271-109:2009/A1:2013 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 109: ALTERNATING-CURRENT SERIES CAPACITOR BY-PASS SWITCHES (IEC 62271-109:2008/A1:2013)
    EN 62701:2014 Fluids for electrotechnical applications - Recycled mineral insulating oils for transformers and switchgears
    EN 62011-2:2004 Insulating materials - Industrial, rigid, moulded, laminated tubes and rods of rectangular and hexagonal cross-section, based on thermosetting resins for electrical purposes - Part 2: Methods of test
    EN 60684-3-284:2014 Flexible insulating sleeving - Part 3: Specifications for individual types of sleeving - Sheet 284: Heat-shrinkable, sleevings, for oil barrier applications
    EN 13352:2012 Specification for the performance of automatic tank contents gauges
    EN 61212-2:2006 Insulating materials - Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes - Part 2: Methods of test
    BS EN 62271-109 : 2009 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 109: ALTERNATING-CURRENT SERIES CAPACITOR BY-PASS SWITCHES
    UNE-EN 50152-2:2013 Railway applications - Fixed installations - Particular requirements for alternating current switchgear - Part 2: Disconnectors, earthing switches and switches with nominal voltage above 1 kV
    I.S. EN 60422:2013 MINERAL INSULATING OILS IN ELECTRICAL EQUIPMENT - SUPERVISION AND MAINTENANCE GUIDANCE (IEC 60422:2013 (EQV))
    BS EN 60684-3-282:2010 Flexible insulating sleeving Specifications for individual types of sleeving. Heat-shrinkable, polyolefin sleeving. Stress control
    BS EN 60076-14:2013 Power transformers Liquid-immersed power transformers using high-temperature insulation materials
    EN IEC/IEEE 65700 : 2018 BUSHINGS FOR DC APPLICATION (IEC/IEEE 65700-19-03:2014)
    CEI CLC/TS 50458 : 2006 CAPACITANCE GRADED OUTDOOR BUSHING 52 KV UP TO 420 KV FOR OIL IMMERSED TRANSFORMERS
    I.S. EN 60076-13:2006 POWER TRANSFORMERS - PART 13: SELF-PROTECTED LIQUID-FILLED TRANSFORMERS
    CLC/TS 50537-2:2010 Railway applications - Mounted parts of the traction transformer and cooling system - Part 2: Pump for insulating liquid for traction transformers and reactors
    UNE-EN 60076-14:2014 Power transformers - Part 14: Liquid-immersed power transformers using high-temperature insulation materials
    CEI EN 60666 : 2011 DETECTION AND DETERMINATION OF SPECIFIED ADDITIVES IN MINERAL INSULATING OILS
    CEI EN 50299-2 : 2016 OIL-IMMERSED CABLE CONNECTION ASSEMBLIES FOR TRANSFORMERS AND REACTORS HAVING HIGHEST VOLTAGE FOR EQUIPMENT UM FROM 72,5 KV TO 550 KV - PART 2: DRY-TYPE CABLE TERMINATIONS
    I.S. EN 50216-9:2009 POWER TRANSFORMER AND REACTOR FITTINGS - PART 9: OIL-TO-WATER HEAT EXCHANGERS
    I.S. EN 60310:2016 RAILWAY APPLICATIONS - TRACTION TRANSFORMERS AND INDUCTORS ON BOARD ROLLING STOCK
    I.S. EN 60851-4:2016 WINDING WIRES - TEST METHODS - PART 4: CHEMICAL PROPERTIES
    BS EN 60137:2017 Insulated bushings for alternating voltages above 1000 V
    I.S. EN 60137:2017 INSULATED BUSHINGS FOR ALTERNATING VOLTAGES ABOVE 1000 V
    CEI EN 60763-2 : 2007 SPECIFICATION FOR LAMINATED PRESSBOARD - PART 2: METHODS OF TEST
    I.S. HD 631.2:2007 ELECTRIC CABLES - ACCESSORIES - MATERIAL CHARACTERISATION - PART 2: FINGERPRINTING AND TYPE TESTS FOR HEAT SHRINKABLE COMPONENTS FOR LOW VOLTAGE APPLICATIONS
    I.S. EN 61039:2008 CLASSIFICATION OF INSULATING LIQUIDS
    UNE-EN 50299-2:2015 Oil-immersed cable connection assemblies for transformers and reactors having highest voltage for equipment Um from 72,5 kV to 550 kV - Part 2: Dry-type cable terminations
    I.S. EN 50216-10:2009 POWER TRANSFORMER AND REACTOR FITTINGS - PART 10: OIL-TO-AIR HEAT EXCHANGERS
    I.S. EN 60763-2:2007 SPECIFICATION FOR LAMINATED PRESSBOARD - PART 2: METHODS OF TEST
    DIN EN 13352:2012-06 Specification for the performance of automatic tank contents gauges
    BS EN 14598-2:2005 Reinforced thermosetting moulding compounds. Specification for sheet moulding compound (SMC) and bulk moulding compound (BMC) Methods of test and general requirements
    I.S. EN 61212-2:2006 INSULATING MATERIALS - INDUSTRIAL RIGID ROUND LAMINATED TUBES AND RODS BASED ON THERMOSETTING RESINS FOR ELECTRICAL PURPOSES - PART 2: METHODS OF TEST
    I.S. EN 13160-5:2016 LEAK DETECTION SYSTEMS - PART 5: REQUIREMENTS AND TEST/ASSESSMENT METHODS FOR IN-TANK GAUGE SYSTEMS AND PRESSURISED PIPEWORK SYSTEMS
    I.S. EN 13352:2012 SPECIFICATION FOR THE PERFORMANCE OF AUTOMATIC TANK CONTENTS GAUGES
    CEI EN 62770 : 2014 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED NATURAL ESTERS FOR TRANSFORMERS AND SIMILAR ELECTRICAL EQUIPMENT
    10/30227686 DC : 0 BS EN 13352 - SPECIFICATION FOR THE PERFORMANCE OF AUTOMATIC TANK CONTENTS GAUGES
    BS EN 60422:2013 Mineral insulating oils in electrical equipment. Supervision and maintenance guidance
    BS EN 50299-2:2014 Oil-immersed cable connection assemblies for transformers and reactors having highest voltage for equipment Um from 72,5 kV to 550 kV Dry-type cable terminations
    CEI EN 60684-3-281 : 2012 FLEXIBLE INSULATING SLEEVING - PART 3: SPECIFICATIONS FOR INDIVIDUAL TYPES OF SLEEVING - SHEET 281: HEAT-SHRINKABLE, POLYOLEFIN SLEEVING, SEMICONDUCTIVE
    14/30301263 DC : 0 BS EN 13160-5 - LEAK DETECTION SYSTEMS - PART 5: REQUIREMENTS AND TEST/ASSESSMENT METHODS FOR IN-TANK GAUGE SYSTEMS AND PRESSURISED PIPEWORK SYSTEMS
    BS EN 60455-2:2015 Resin based reactive compounds used for electrical insulation Methods of test
    BS EN 60214-1:2014 Tap-changers Performance requirements and test methods
    CEI CLC/TS 50537-4 : 2011 RAILWAY APPLICATIONS - MOUNTED PARTS OF THE TRACTION TRANSFORMER AND COOLING SYSTEM - PART 4: GAS AND LIQUID ACTUATED (BUCHHOLZ) RELAY FOR LIQUID IMMERSED TRANSFORMERS AND REACTORS WITH CONSERVATOR FOR RAIL VEHICLES
    BS EN 60666:2010 Detection and determination of specified additives in mineral insulating oils
    BS EN 60684-3-214:2014 Flexible insulating sleeving Specifications for individual types of sleeving. Heat-shrinkable, polyolefin sleeving, not flame retarded, thick and medium wall
    UNE-EN 60695-8-1:2017 Fire hazard testing - Part 8-1: Heat release - General guidance
    CEI EN 62011-2 : 2005 INSULATING MATERIALS - INDUSTRIAL, RIGID, MOULDED, LAMINATED TUBES AND RODS OF RECTANGULAR AND HEXAGONAL CROSS-SECTION, BASED ON THERMOSETTING RESINS FOR ELECTRICAL PURPOSES - PART 2: METHODS OF TEST
    CEI EN 60684-3-284 : 2016 FLEXIBLE INSULATING SLEEVING - PART 3: SPECIFICATIONS FOR INDIVIDUAL TYPES OF SLEEVING - SHEET 284: HEAT-SHRINKABLE, SLEEVINGS, FOR OIL BARRIER APPLICATIONS
    BS EN 60684-3-280 : 2010 FLEXIBLE INSULATING SLEEVING - PART 3: SPECIFICATIONS FOR INDIVIDUAL TYPES OF SLEEVING - SHEET 280: HEAT-SHRINKABLE, POLYOLEFIN SLEEVING, ANTI-TRACKING
    BS EN 62271-1:2017 High-voltage switchgear and controlgear Common specifications for alternating current switchgear and controlgear
    I.S. EN 60455-2:2015 RESIN BASED REACTIVE COMPOUNDS USED FOR ELECTRICAL INSULATION - PART 2: METHODS OF TEST
    PREN 50152-1 : DRAFT 2011 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - PARTICULAR REQUIREMENTS FOR ALTERNATING CURRENT SWITCHGEAR - PART 1: CIRCUIT-BREAKERS WITH NOMINAL VOLTAGE ABOVE 1 KV
    I.S. EN 60695-1-40:2014 FIRE HAZARD TESTING - PART 1-40: GUIDANCE FOR ASSESSING THE FIRE HAZARD OF ELECTROTECHNICAL PRODUCTS - INSULATING LIQUIDS
    I.S. EN 61061-1:2006 NON-IMPREGNATED DENSIFIED LAMINATED WOOD FOR ELECTRICAL PURPOSES - PART 1: DEFINITIONS, DESIGNATION AND GENERAL REQUIREMENTS
    UNE-EN 60567:2012 Oil-filled electrical equipment - Sampling of gases and analysis of free and dissolved gases - Guidance
    BS EN 60567:2011 Oil-filled electrical equipment. Sampling of gases and analysis of free and dissolved gases. Guidance
    PREN 13160-5 : DRAFT 2014 LEAK DETECTION SYSTEMS - PART 5: REQUIREMENTS AND TEST/ASSESSMENT METHODS FOR IN-TANK GAUGE SYSTEMS AND PRESSURISED PIPEWORK SYSTEMS
    CEI EN 50299-1 : 2016 OIL-IMMERSED CABLE CONNECTION ASSEMBLIES FOR TRANSFORMERS AND REACTORS HAVING HIGHEST VOLTAGE FOR EQUIPMENT UM FROM 72,5 KV TO 550 KV - PART 1: FLUID-FILLED CABLE TERMINATIONS
    CLC/TS 50537-4:2010 Railway applications - Mounted parts of the traction transformer and cooling system - Part 4: Gas and liquid actuated (Buchholz) relay for liquid immersed transformers and reactors with conservator for rail vehicles
    BS EN 60684-3-247 : 2011 FLEXIBLE INSULATING SLEEVING - PART 3: SPECIFICATIONS FOR INDIVIDUAL TYPES OF SLEEVING - SHEET 247: HEAT-SHRINKABLE POLYOLEFIN SLEEVING, DUAL WALL, NOT FLAME RETARDED, THICK AND MEDIUM WALL (IEC 60684-3-247:2011)
    I.S. EN 50152-2:2012 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - PARTICULAR REQUIREMENTS FOR ALTERNATING CURRENT SWITCHGEAR - PART 2: DISCONNECTORS, EARTHING SWITCHES AND SWITCHES WITH NOMINAL VOLTAGE ABOVE 1 KV
    UNE-EN 61869-1:2010 Instrument transformers -- Part 1: General requirements
    UNE-EN 62271-100:2011 High-voltage switchgear and controlgear -- Part 100: Alternating-current circuit-breakers
    UNE-EN 60836:2015 Specifications for unused silicone insulating liquids for electrotechnical purposes
    CEI EN 60684-3-214 : 2015 FLEXIBLE INSULATING SLEEVING - PART 3: SPECIFICATIONS FOR INDIVIDUAL TYPES OF SLEEVING - SHEET 214: HEAT-SHRINKABLE, POLYOLEFIN SLEEVING, NOT FLAME RETARDED, THICK AND MEDIUM WALL
    BS EN 50152-1 : 2012 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - PARTICULAR REQUIREMENTS FOR ALTERNATING CURRENT SWITCHGEAR - PART 1: CIRCUIT-BREAKERS WITH NOMINAL VOLTAGE ABOVE 1 KV
    I.S. EN 61869-1:2009 INSTRUMENT TRANSFORMERS - PART 1: GENERAL REQUIREMENTS
    EN IEC 62677-3-102:2018 Heat-shrinkable low and medium voltage moulded shapes - Part 3: Specification for individual materials - Sheet 102: Heat-shrinkable, polyolefin, anti-tracking moulded shapes for medium voltage applications
    BS EN 50216-9:2009 Power transformer and reactor fittings Oil-to-water heat exchangers
    05/30136690 DC : DRAFT JUL 2005 CLC/TS 50458 - CAPACITANCE GRADED OUTDOOR BUSHING 52 KV UP TO 420 KV FOR OIL IMMERSED TRANSFORMERS
    BS EN IEC 62677-3-101:2018 Heat-shrinkable low and medium voltage moulded shapes Specification for individual materials. Sheet 101: Heat-shrinkable, polyolefin moulded shapes for low voltage applications
    UNE-EN 60695-1-40:2014 Fire hazard testing - Part 1-40: Guidance for assessing the fire hazard of electrotechnical products - Insulating liquids
    DD CLC/TS 50537-4:2010 Railway applications. Mounted parts of the traction transformer and cooling system Gas and liquid actuated (Buchholz) relay for liquid immersed transformers and reactors with conservator for rail vehicles
    BS EN 50299-1:2014 Oil-immersed cable connection assemblies for transformers and reactors having highest voltage for equipment Um from 72,5 kV to 550 kV Fluid-filled cable terminations
    BS EN 60851-4:1998 Winding Wires. Test methods Chemical properties
    14/30316181 DC : 0 BS EN 50628 - ERECTION OF ELECTRICAL INSTALLATIONS IN UNDERGROUND MINES
    BS EN 62770:2014 Fluids for electrotechnical applications. Unused natural esters for transformers and similar electrical equipment
    UNE-EN 50299-1:2015 Oil-immersed cable connection assemblies for transformers and reactors having highest voltage for equipment Um from 72,5 kV to 550 kV - Part 1: Fluid-filled cable terminations
    CEI EN 60641-2 : 2005 PRESSBOARD AND PRESSPAPER FOR ELECTRICAL PURPOSES - PART 2: METHODS OF TEST
    CEI EN 61061-1 : 2007 NON-IMPREGNATED DENSIFIED LAMINATED WOOD FOR ELECTRICAL PURPOSES - PART 1: DEFINITIONS, DESIGNATION AND GENERAL REQUIREMENTS
    I.S. EN 60684-3-282:2010 FLEXIBLE INSULATING SLEEVING - PART 3: SPECIFICATIONS FOR INDIVIDUAL TYPES OF SLEEVING - SHEET 282: HEAT-SHRINKABLE, POLYOLEFIN SLEEVING - STRESS CONTROL
    BS EN 60076-1:2011 Power transformers General
    CEI EN 60684-3-282 : 2012 FLEXIBLE INSULATING SLEEVING - PART 3: SPECIFICATIONS FOR INDIVIDUAL TYPES OF SLEEVING - SHEET 282: HEAT-SHRINKABLE, POLYOLEFIN SLEEVING - STRESS CONTROL
    BS EN 60684-3-284:2014 Flexible insulating sleeving Specifications for individual types of sleeving - Heat-shrinkable, sleevings, for oil barrier applications
    BS EN 60079-6:2007 Explosive atmospheres Equipment protected by oil immersion \'o\'
    BS EN 60243-1:2013 Electric strength of insulating materials. Test methods Tests at power frequencies
    11/30235283 DC : 0 BS EN 50152-2 - RAILWAY APPLICATIONS - FIXED INSTALLATIONS - PARTICULAR REQUIREMENTS FOR ALTERNATING CURRENT SWITCHGEAR - PART 2: DISCONNECTORS, EARTHING SWITCHES AND SWITCHES WITH NOMINAL VOLTAGE ABOVE 1 KV
    04/30123986 DC : DRAFT OCT 2004 EN 50216-9 - POWER TRANSFORMER AND REACTOR FITTINGS - PART 9: OIL TO WATER HEAT EXCHANGER
    UNE-EN 50152-1:2013 Railway applications - Fixed installations - Particular requirements for alternating current switchgear - Part 1: Circuit-breakers with nominal voltage above 1 kV
    BS EN 60310:2016 Railway applications. Traction transformers and inductors on board rolling stock
    BS EN 50152-2:2012 Railway applications. Fixed installations. Particular requirements for alternating current switchgear Disconnectors, earthing switches and switches with nominal voltage above 1 kV
    BS EN 60684-3-283 : 2011 FLEXIBLE INSULATING SLEEVING - PART 3: SPECIFICATIONS FOR INDIVIDUAL TYPES OF SLEEVING - SHEET 283: HEAT-SHRINKABLE, POLYOLEFIN SLEEVING, FOR BUS-BAR INSULATION
    I.S. EN 50152-1:2012 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - PARTICULAR REQUIREMENTS FOR ALTERNATING CURRENT SWITCHGEAR - PART 1: CIRCUIT-BREAKERS WITH NOMINAL VOLTAGE ABOVE 1 KV
    I.S. EN 60684-3-283:2011 FLEXIBLE INSULATING SLEEVING - PART 3: SPECIFICATIONS FOR INDIVIDUAL TYPES OF SLEEVING - SHEET 283: HEAT-SHRINKABLE, POLYOLEFIN SLEEVING, FOR BUS-BAR INSULATION
    BS EN 62271-100 : 2009 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 100: ALTERNATING-CURRENT CIRCUIT-BREAKERS (IEC 62271-100:2008)
    I.S. EN 50299-2:2014 OIL-IMMERSED CABLE CONNECTION ASSEMBLIES FOR TRANSFORMERS AND REACTORS HAVING HIGHEST VOLTAGE FOR EQUIPMENT UM FROM 72,5 KV TO 550 KV - PART 2: DRY-TYPE CABLE TERMINATIONS
    I.S. EN 60836:2015 SPECIFICATIONS FOR UNUSED SILICONE INSULATING LIQUIDS FOR ELECTROTECHNICAL PURPOSES
    I.S. EN 62770:2014 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED NATURAL ESTERS FOR TRANSFORMERS AND SIMILAR ELECTRICAL EQUIPMENT
    I.S. EN 60684-3-247:2011 FLEXIBLE INSULATING SLEEVING - PART 3: SPECIFICATIONS FOR INDIVIDUAL TYPES OF SLEEVING - SHEET 247: HEAT-SHRINKABLE POLYOLEFIN SLEEVING, DUAL WALL, NOT FLAME RETARDED, THICK AND MEDIUM WALL
    I.S. EN IEC 62677-3-102:2018 HEAT-SHRINKABLE LOW AND MEDIUM VOLTAGE MOULDED SHAPES - PART 3: SPECIFICATION FOR INDIVIDUAL MATERIALS - SHEET 102: HEAT-SHRINKABLE, POLYOLEFIN, ANTI-TRACKING MOULDED SHAPES FOR MEDIUM VOLTAGE APPLICATIONS
    PREN 50628 : DRAFT 2014 ERECTION OF ELECTRICAL INSTALLATIONS IN UNDERGROUND MINES
    CEI EN 60076-1 : 2015 POWER TRANSFORMERS - PART 1: GENERAL
    CEI EN 60567 : 2012 OIL-FILLED ELECTRICAL EQUIPMENT - SAMPLING OF GASES AND ANALYSIS OF FREE AND DISSOLVED GASES - GUIDANCE
    CEI EN 60243-1 : 2014 ELECTRIC STRENGTH OF INSULATING MATERIALS - TEST METHODS - PART 1: TESTS AT POWER FREQUENCIES
    PREN 50152-2 : DRAFT 2011 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - PARTICULAR REQUIREMENTS FOR ALTERNATING CURRENT SWITCHGEAR - PART 2: DISCONNECTORS, EARTHING SWITCHES AND SWITCHES WITH NOMINAL VOLTAGE ABOVE 1 KV
    CEI EN 50152-2 : 2013 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - PARTICULAR REQUIREMENTS FOR ALTERNATING CURRENT SWITCHGEAR - PART 2: DISCONNECTORS, EARTHING SWITCHES AND SWITCHES WITH NOMINAL VOLTAGE ABOVE 1 KV
    I.S. CLC/TS 50458:2006 CAPACITANCE GRADED OUTDOOR BUSHING 52 KV UP TO 420 KV FOR OIL IMMERSED TRANSFORMERS
    BS EN 50628:2016 Erection of electrical installations in underground mines
    BS EN 13160-5:2004 Leak detection systems Tank gauge leak detection systems
    UNE-EN 60079-6:2016 Explosive atmospheres - Part 6: Equipment protection by liquid immersion "o"
    UNE-EN 60076-1:2013 Power transformers - Part 1: General
    BS EN 14598-3:2005 Reinforced thermosetting moulding compounds. Specification for sheet moulding compound (SMC) and bulk moulding compound (BMC) Specific requirements
    UNE-EN 13352:2012 Specification for the performance of automatic tank contents gauges
    UNE-EN 60422:2013 Mineral insulating oils in electrical equipment - Supervision and maintenance guidance
    EN 50216-9:2009 Power transformer and reactor fittings - Part 9: Oil-to-water heat exchangers
    EN 14598-2:2005/AC:2006 REINFORCED THERMOSETTING MOULDING COMPOUNDS - SPECIFICATION FOR SHEET MOULDING COMPOUND (SMC) AND BULK MOULDING COMPOUND (BMC) - PART 2: METHODS OF TEST AND GENERAL REQUIREMENTS
    EN 14598-3:2005 Reinforced thermosetting moulding compounds - Specification for Sheet Moulding Compound (SMC) and Bulk Moulding Compound (BMC) - Part 3: Specific requirements
    CEI EN 60076-13 : 2007 POWER TRANSFORMERS - PART 13: SELF PROTECTED LIQUID FILLED TRANSFORMERS
    BS EN 60695-8-1:2017 Fire hazard testing Heat release. General guidance
    I.S. EN 62011-2:2004 INSULATING MATERIALS - INDUSTRIAL, RIGID, MOULDED, LAMINATED TUBES AND RODS OF RECTANGULAR AND HEXAGONAL CROSS-SECTION, BASED ON THERMOSETTING RESINS FOR ELECTRICAL PURPOSES, - PART 2: METHODS OF TEST
    UNE-EN 62770:2014 Fluids for electrotechnical applications - Unused natural esters for transformers and similar electrical equipment
    BS EN 61039:2008 Classification of insulating liquids
    BS EN 62011-2:2004 Insulating materials. Industrial, rigid, moulded, laminated tubes and rods of rectangular and hexagonal cross-section, based on thermosetting resins for electrical purposes Methods of test
    EN 62271-100 : 2009 AMD 2/COR 18 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 100: ALTERNATING-CURRENT CIRCUIT-BREAKERS (IEC 62271-100:2008/A2:2017/COR1:2018)
    I.S. EN 60567:2011 OIL-FILLED ELECTRICAL EQUIPMENT - SAMPLING OF GASES AND ANALYSIS OF FREE AND DISSOLVED GASES - GUIDANCE (IEC 60567:2011 (EQV))
    BS EN 60684-3-281:2010 Flexible insulating sleeving Specifications for individual types of sleeving. Heat-shrinkable, polyolefin sleeving, semiconductive
    S.R. CLC/TS 50537-4:2010 RAILWAY APPLICATIONS - MOUNTED PARTS OF THE TRACTION TRANSFORMER AND COOLING SYSTEM - PART 4: GAS AND LIQUID ACTUATED (BUCHHOLZ) RELAY FOR LIQUID IMMERSED TRANSFORMERS AND REACTORS WITH CONSERVATOR FOR RAIL VEHICLES
    13/30281713 DC : 0 BS EN 50299-1 - OIL-IMMERSED CABLE CONNECTION ASSEMBLIES FOR TRANSFORMERS AND REACTORS HAVING HIGHEST VOLTAGE FOR EQUIPMENT U[M] FROM 72,5 KV TO 550 KV - PART 1: FLUID-FILLED CABLE TERMINATIONS
    I.S. EN 50628:2016 ERECTION OF ELECTRICAL INSTALLATIONS IN UNDERGROUND MINES
    13/30281716 DC : 0 BS EN 50299-2 - OIL-IMMERSED CABLE CONNECTION ASSEMBLIES FOR TRANSFORMERS AND REACTORS HAVING HIGHEST VOLTAGE FOR EQUIPMENT U[M] FROM 72,5 KV TO 550 KV - PART 2: DRY-TYPE CABLE TERMINATIONS
    CEI EN 61039 : 2009 CLASSIFICATION OF INSULATING LIQUIDS
    EN IEC 62677-3-101:2018 Heat-shrinkable low and medium voltage moulded shapes - Part 3: Specification for individual materials - Sheet 101: Heat-shrinkable, polyolefin moulded shapes for low voltage applications
    BS EN 60763-2:2007 Specification for laminated pressboard Methods of test
    CEI EN 60079-6 : 2016 EXPLOSIVE ATMOSPHERES - PART 6: EQUIPMENT PROTECTION BY LIQUID IMMERSION 'O'
    UNE-EN 60666:2011 Detection and determination of specified additives in mineral insulating oils
    CLC/TR 50503 : 2010 Guidelines for the inventory control, management, decontamination and/or disposal of electrical equipment and insulating liquids containing PCBs
    I.S. EN 60243-1:2013 ELECTRIC STRENGTH OF INSULATING MATERIALS - TEST METHODS - PART 1: TESTS AT POWER FREQUENCIES (IEC 60243-1:2013 (EQV))
    I.S. EN 60076-1:2011 POWER TRANSFORMERS - PART 1: GENERAL (IEC 60076-1:2011)
    CEI EN 61869-1 : 2010 INSTRUMENT TRANSFORMERS - PART 1: GENERAL REQUIREMENTS
    CEI EN 60695-1-40 : 2014 FIRE HAZARD TESTING - PART 1-40: GUIDANCE FOR ASSESSING THE FIRE HAZARD OF ELECTROTECHNICAL PRODUCTS - INSULATING LIQUIDS
    I.S. EN IEC 62677-3-101:2018 HEAT-SHRINKABLE LOW AND MEDIUM VOLTAGE MOULDED SHAPES - PART 3: SPECIFICATION FOR INDIVIDUAL MATERIALS - SHEET 101: HEAT-SHRINKABLE, POLYOLEFIN MOULDED SHAPES FOR LOW VOLTAGE APPLICATIONS
    I.S. EN 50299-1:2014 OIL-IMMERSED CABLE CONNECTION ASSEMBLIES FOR TRANSFORMERS AND REACTORS HAVING HIGHEST VOLTAGE FOR EQUIPMENT UM FROM 72,5 KV TO 550 KV - PART 1: FLUID-FILLED CABLE TERMINATIONS
    I.S. EN 60079-6:2015 EXPLOSIVE ATMOSPHERES - PART 6: EQUIPMENT PROTECTION BY LIQUID IMMERSION 'O'
    I.S. EN 60684-3-281:2010 FLEXIBLE INSULATING SLEEVING - PART 3: SPECIFICATIONS FOR INDIVIDUAL TYPES OF SLEEVING - SHEET 281: HEAT-SHRINKABLE, POLYOLEFIN SLEEVING, SEMICONDUCTIVE
    I.S. EN IEC/IEEE 65700:2018 BUSHINGS FOR DC APPLICATION
    BS EN 61061-1:2006 Non-impregnated densified laminated wood for electrical purposes Definitions, designation and general requirements
    UNE-EN 60214-1:2015 Tap-changers - Part 1: Performance requirements and test methods
    I.S. EN 60684-3-280:2010 FLEXIBLE INSULATING SLEEVING - PART 3: SPECIFICATIONS FOR INDIVIDUAL TYPES OF SLEEVING - SHEET 280: HEAT-SHRINKABLE, POLYOLEFIN SLEEVING, ANTI-TRACKING
    UNE-EN 50216-10:2010 Power transformer and reactor fittings - Part 10: Oil-to-air heat exchangers
    CEI EN 50216-10 : 2010 POWER TRANSFORMER AND REACTOR FITTINGS - PART 10: OIL-TO-AIR HEAT EXCHANGERS
    I.S. EN 60666:2010 DETECTION AND DETERMINATION OF SPECIFIED ADDITIVES IN MINERAL INSULATING OILS
    I.S. EN 60214-1:2014 TAP-CHANGERS - PART 1: PERFORMANCE REQUIREMENTS AND TEST METHODS
    I.S. EN 62271-1:2017 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 1: COMMON SPECIFICATIONS FOR ALTERNATING CURRENT SWITCHGEAR AND CONTROLGEAR
    I.S. EN 62271-109:2009 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 109: ALTERNATING-CURRENT SERIES CAPACITOR BY-PASS SWITCHES (IEC 62271-109:2008 (EQV))
    EN 60684-3-280:2010/A1:2014 FLEXIBLE INSULATING SLEEVING - PART 3: SPECIFICATIONS FOR INDIVIDUAL TYPES OF SLEEVING - SHEET 280: HEAT-SHRINKABLE, POLYOLEFIN SLEEVING, ANTI-TRACKING (IEC 60684-3-280:2010/A1:2013)
    EN 60684-3-247:2011/A1:2017 FLEXIBLE INSULATING SLEEVING - PART 3: SPECIFICATIONS FOR INDIVIDUAL TYPES OF SLEEVING - SHEET 247: HEAT-SHRINKABLE POLYOLEFIN SLEEVING, DUAL WALL, NOT FLAME RETARDED, THICK AND MEDIUM WALL (IEC 60684-3-247:2011/A1:2016)
    BS EN 13352:2012 Specification for the performance of automatic tank contents gauges
    UNE-EN 13160-5:2017 Leak detection systems - Part 5: Requirements and test/assessment methods for in-tank gauge systems and pressurised pipework systems
    BS EN 61212-2:2006 Insulating materials. Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes Methods of test
    EN 60684-3-214:2014 Flexible insulating sleeving - Part 3: Specifications for individual types of sleeving - Sheet 214: Heat-shrinkable, polyolefin sleeving, not flame retarded, thick and medium wall
    EN 61061-1:2006 Non-impregnated densified laminated wood for electrical purposes - Part 1: Definitions, designation and general requirements
    EN 62770:2014 Fluids for electrotechnical applications - Unused natural esters for transformers and similar electrical equipment
    EN 13160-5:2016 Leak detection systems - Part 5: Requirements and test/assessment methods for in-tank gauge systems and pressurised pipework systems
    EN 50152-2:2012 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - PARTICULAR REQUIREMENTS FOR ALTERNATING CURRENT SWITCHGEAR - PART 2: DISCONNECTORS, EARTHING SWITCHES AND SWITCHES WITH NOMINAL VOLTAGE ABOVE 1 KV
    EN 50299-1:2014 Oil-immersed cable connection assemblies for transformers and reactors having highest voltage for equipment Um from 72,5 kV to 550 kV - Part 1: Fluid-filled cable terminations
    EN 60763-2:2007 Specification for laminated pressboard - Part 2: Methods of test
    EN 60076-13 : 2006 POWER TRANSFORMERS - PART 13: SELF-PROTECTED LIQUID-FILLED TRANSFORMERS
    EN 50299-2:2014 Oil-immersed cable connection assemblies for transformers and reactors having highest voltage for equipment Um from 72,5 kV to 550 kV - Part 2: Dry-type cable terminations
    EN 61869-1:2009 Instrument transformers - Part 1: General requirements
    EN 61039 : 2008 CLASSIFICATION OF INSULATING LIQUIDS
    EN 60567:2011 OIL-FILLED ELECTRICAL EQUIPMENT - SAMPLING OF GASES AND ANALYSIS OF FREE AND DISSOLVED GASES - GUIDANCE (IEC 60567:2011)
    EN 60666 : 2010 DETECTION AND DETERMINATION OF SPECIFIED ADDITIVES IN MINERAL INSULATING OILS
    EN 50152-1 : 2012 AMD 1 2013 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - PARTICULAR REQUIREMENTS FOR ALTERNATING CURRENT SWITCHGEAR - PART 1: CIRCUIT-BREAKERS WITH NOMINAL VOLTAGE ABOVE 1 KV
    EN 60695-1-40:2014 Fire hazard testing - Part 1-40: Guidance for assessing the fire hazard of electrotechnical products - Insulating liquids
    EN 50628:2016 Erection of electrical installations in underground mines
    EN 60214-1:2014 Tap-changers - Part 1: Performance requirements and test methods
    EN 60076-1:2011 POWER TRANSFORMERS - PART 1: GENERAL (IEC 60076-1:2011)
    EN 60836:2015 Specifications for unused silicone insulating liquids for electrotechnical purposes
    EN 60079-6:2015 Explosive atmospheres - Part 6: Equipment protection by liquid immersion "o"
    EN 60422:2013 Mineral insulating oils in electrical equipment - Supervision and maintenance guidance
    EN 60641-2:2004 Pressboard and presspaper for electrical purposes - Part 2: Methods of tests
    EN 50216-10:2009 Power transformer and reactor fittings - Part 10: Oil-to-air heat exchangers
    EN 60310:2016/AC:2018-03 RAILWAY APPLICATIONS - TRACTION TRANSFORMERS AND INDUCTORS ON BOARD ROLLING STOCK (IEC 60310:2016/COR1:2018)
    EN 60455-2:2015 Resin based reactive compounds used for electrical insulation - Part 2: Methods of test
    EN 60076-14:2013 Power transformers - Part 14: Liquid-immersed power transformers using high-temperature insulation materials
    EN 60695-8-1:2017 Fire hazard testing - Part 8-1: Heat release - General guidance

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 3016:1994 Petroleum products Determination of pour point
    ISO 2719:2016 Determination of flash point — Pensky-Martens closed cup method
    EN 60156:1995 Insulating liquids - Determination of the breakdown voltage at power frequency - Test method
    IEC 62021-1:2003 Insulating liquids - Determination of acidity - Part 1: Automatic potentiometric titration
    EN 60422:2013 Mineral insulating oils in electrical equipment - Supervision and maintenance guidance
    IEC 62021-2:2007 Insulating liquids - Determination of acidity - Part 2: Colourimetric titration
    IEC 61125:1992 Unused hydrocarbon based insulating liquids - Test methods for evaluating the oxidation stability
    ISO 3675:1998 Crude petroleum and liquid petroleum products Laboratory determination of density Hydrometer method
    EN ISO 3104:1996 Petroleum products - Transparent and opaque liquids - Determination of kinematic viscosity and calculation of dynamic viscosity (ISO 3104:1994)
    IEC 60422:2013 Mineral insulating oils in electrical equipment - Supervision and maintenance guidance
    IEC 60156:1995 Insulating liquids - Determination of the breakdown voltage at power frequency - Test method
    EN 61125:1993/A1:2004 UNUSED HYDROCARBON-BASED INSULATING LIQUIDS - TEST METHODS FOR EVALUATING THE OXIDATION STABILITY
    EN ISO 12185:1996 Crude petroleum and petroleum products - Determination of density - Oscillating U-tube method (ISO 12185:1996)
    EN 14210 : 2003 SURFACE ACTIVE AGENTS - DETERMINATION OF INTERFACIAL TENSION OF SOLUTIONS OF SURFACE ACTIVE AGENTS BY THE STIRRUP OR RING METHOD
    EN 61619:1997 Insulating liquids - Contamination by polychlorinated biphenyls (PCBs) - Method of determination by capillary column gas chromatography
    HD 488 : 200S3 GASSING OF INSULATING LIQUIDS UNDER ELECTRICAL STRESS AND IONIZATION
    ISO 6247:1998 Petroleum products — Determination of foaming characteristics of lubricating oils
    EN ISO 14596:2007 Petroleum products - Determination of sulfur content - Wavelength-dispersive X-ray fluorescence spectrometry (ISO 14596:2007)
    IEC 62535:2008 Insulating liquids - Test method for detection of potentially corrosive sulphur in used and unused insulating oil
    IEC 60475:2011 Method of sampling insulating liquids
    EN 61620:1999 Insulating liquids - Determination of the dielectric dissipation factor by measurement of the conductance and capacitance - Test method
    IEC 61868:1998 Mineral insulating oils - Determination of kinematic viscosity at very low temperatures
    EN ISO 3675:1998 Crude petroleum and liquid petroleum products - Laboratory determination of density - Hydrometer method (ISO 3675:1998)
    EN 61198:1994 Mineral insulating oils - Methods for the determination of 2-furfural and related compounds
    EN 60814:1997 Insulating liquids - Oil-impregnated paper and pressboard - Determination of water by automatic coulometric Karl Fischer titration
    EN 62021-2 : 2007 INSULATING LIQUIDS - DETERMINATION OF ACIDITY - PART 2: COLOURIMETRIC TITRATION
    EN 62535:2009 Insulating liquids - Test method for detection of potentially corrosive sulphur in used and unused insulating oil
    EN 60970:2007/corrigendum:2008 INSULATING LIQUIDS - METHODS FOR COUNTING AND SIZING PARTICLES
    ISO 12185:1996 Crude petroleum and petroleum products — Determination of density — Oscillating U-tube method
    IEC 60970:2007 Insulating liquids - Methods for counting and sizing particles
    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)
    EN 60247:2004 Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan d) and d.c. resistivity
    IEC 60666:2010 Detection and determination of specified additives in mineral insulating oils
    IEC 61620:1998 Insulating liquids - Determination of the dielectric dissipation factor by measurement of the conductance and capacitance - Test method
    IEC 60867:1993 Insulating liquids - Specifications for unused liquids based on synthetic aromatic hydrocarbons
    IEC 60814:1997 Insulating liquids - Oil-impregnated paper and pressboard - Determination of water by automatic coulometric Karl Fischer titration
    IEC 60076-2:2011 Power transformers - Part 2: Temperature rise for liquid-immersed transformers
    EN ISO 2719:2016 Determination of flash point - Pensky-Martens closed cup method (ISO 2719:2016)
    IEC 60247:2004 Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan d) and d.c. resistivity
    EN 61868:1999 Mineral insulating oils - Determination of kinematic viscosity at very low temperatures
    ISO 14596:2007 Petroleum products — Determination of sulfur content — Wavelength-dispersive X-ray fluorescence spectrometry
    ASTM D 7150 : 2013 : REDLINE Standard Test Method for the Determination of Gassing Characteristics of Insulating Liquids Under Thermal Stress
    IEC 61619:1997 Insulating liquids - Contamination by polychlorinated biphenyls (PCBs) - Method of determination by capillary column gas chromatography
    EN 60076-2:2011 Power transformers - Part 2: Temperature rise for liquid-immersed transformers
    IEC 61198:1993 Mineral insulating oils - Methods for the determination of 2-furfural and related compounds
    EN 62021-1:2003 Insulating liquids - Determination of acidity - Part 1: Automatic potentiometric titration
    EN 60475 : 2011 Method of sampling insulating liquids
    EN 60666 : 2010 DETECTION AND DETERMINATION OF SPECIFIED ADDITIVES IN MINERAL INSULATING OILS
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