EN 62021-2 : 2007
Current
The latest, up-to-date edition.
INSULATING LIQUIDS - DETERMINATION OF ACIDITY - PART 2: COLOURIMETRIC TITRATION
26-07-2007
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
|
| Standards | Relationship |
| UNE-EN 62021-2:2008 | Identical |
| SS-EN 62021-2 : 2008 | Identical |
| IEC 62021-2:2007 | Identical |
| CEI EN 62021-2 : 2007 | Identical |
| VDE 0370-32 : 2008 | Identical |
| PN-EN 62021-2 : 2008 | Identical |
| SN EN 62021-2 : 2007 | Identical |
| I.S. EN 62021-2:2007 | Identical |
| NEN EN IEC 62021-2 : 2007 | Identical |
| NBN EN 62021-2 : 2008 | Identical |
| NF EN 62021-2 : 2007 | Identical |
| BS EN 62021-2:2007 | Identical |
| DIN EN 62021-2 : 2008 | Identical |
| 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 |
| CEI EN 60422 : 2014 | 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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