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I.S. EN 62021-2:2007

Current
Current

The latest, up-to-date edition.

INSULATING LIQUIDS - DETERMINATION OF ACIDITY - PART 2: COLOURIMETRIC TITRATION
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2007

Preview

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.

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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