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EN 62021-2 : 2007

Current
Current

The latest, up-to-date edition.

INSULATING LIQUIDS - DETERMINATION OF ACIDITY - PART 2: COLOURIMETRIC TITRATION
Published date

07-26-2007

Publisher

European Committee for Standards - Electrical

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
   5.1 Titration reagent
   5.2 Titration solvent
   5.3 Potassium hydrogen phthalate, primary standard
   5.4 Standard hydrochloric acid solution
   5.5 Alkali Blue 6B indicator solution
   5.6 Cobalt nitrate solution
6 Apparatus
   6.1 Titration vessel
   6.2 Stirrer
   6.3 Burette
7 Sampling
8 Procedure
   8.1 Standardization of alcoholic potassium hydroxide
        solution
   8.2 Blank titration
   8.3 Sample titration
9 Calculation of results
10 Precision
   10.1 Repeatability
   10.2 Reproducibility
11 Report
Annex A (informative) Determination of acidity in electrical
        insulating oils by photometric titration
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications

Describes a procedure for determination of the acidity of unused and used electrical mineral insulating oils.

Committee
SR 10
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Current

BS EN 60422:2013 Mineral insulating oils in electrical equipment. Supervision and maintenance guidance
CEI EN 61099 : 2011 INSULATING LIQUIDS - SPECIFICATIONS FOR UNUSED SYNTHETIC ORGANIC ESTERS FOR ELECTRICAL PURPOSES
EN 62701:2014 Fluids for electrotechnical applications - Recycled mineral insulating oils for transformers and switchgears
EN 61099:2010 Insulating liquids - Specifications for unused synthetic organic esters for electrical purposes
I.S. EN 60422:2013 MINERAL INSULATING OILS IN ELECTRICAL EQUIPMENT - SUPERVISION AND MAINTENANCE GUIDANCE (IEC 60422:2013 (EQV))
I.S. EN IEC 61125:2018 INSULATING LIQUIDS - TEST METHODS FOR OXIDATION STABILITY - TEST METHOD FOR EVALUATING THE OXIDATION STABILITY OF INSULATING LIQUIDS IN THE DELIVERED STATE
I.S. EN 61099:2010 INSULATING LIQUIDS - SPECIFICATIONS FOR UNUSED SYNTHETIC ORGANIC ESTERS FOR ELECTRICAL PURPOSES
BS EN 60296:2012 Fluids for electrotechnical applications. Unused mineral insulating oils for transformers and switchgear
I.S. EN 62701:2014 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - RECYCLED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEARS
CEI EN 60296 : 2013 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEAR
EN 60296:2012 Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
EN IEC 61125:2018 Insulating liquids - Test methods for oxidation stability - Test method for evaluating the oxidation stability of insulating liquids in the delivered state
BS EN 61099:2010 Insulating liquids. Specifications for unused synthetic organic esters for electrical purposes
UNE-EN 60296:2012 Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
UNE-EN 60422:2013 Mineral insulating oils in electrical equipment - Supervision and maintenance guidance
BS EN IEC 61125:2018 Insulating liquids. Test methods for oxidation stability. Test method for evaluating the oxidation stability of insulating liquids in the delivered state
UNE-EN 61099:2011 Insulating liquids - Specifications for unused synthetic organic esters for electrical purposes
I.S. EN 60296:2012 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEAR (IEC 60296:2012 (EQV))
EN 60422:2013 Mineral insulating oils in electrical equipment - Supervision and maintenance guidance

IEC 60475:2011 Method of sampling insulating liquids
IEC 60567:2011 Oil-filled electrical equipment - Sampling of gases and analysis of free and dissolved gases - Guidance
ISO 6619:1988 Petroleum products and lubricants — Neutralization number — Potentiometric titration method
EN 60567:2011 OIL-FILLED ELECTRICAL EQUIPMENT - SAMPLING OF GASES AND ANALYSIS OF FREE AND DISSOLVED GASES - GUIDANCE (IEC 60567:2011)

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