I.S. EN 62021-2:2007
Current
The latest, up-to-date edition.
INSULATING LIQUIDS - DETERMINATION OF ACIDITY - PART 2: COLOURIMETRIC TITRATION
Hardcopy , PDF
English
01-01-2007
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
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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 photometric titration
Annex ZA (normative) Normative references to international
publications with their corresponding European
publications
Specifies a procedure for determination of the acidity of unused and used electrical mineral insulating oils.
| DevelopmentNote |
For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
|
| DocumentType |
Standard
|
| Pages |
41
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Standards | Relationship |
| BS EN 62021-2:2007 | Identical |
| DIN EN 62021-2 : 2008 | Identical |
| NF EN 62021-2 : 2007 | Identical |
| EN 62021-2 : 2007 | Identical |
| IEC 62021-2:2007 | Identical |
| UNE-EN 62021-2:2008 | Identical |
| 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 5725:1986 | Precision of test methods Determination of repeatability and reproducibility for a standard test method by inter-laboratory tests |
| 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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