I.S. EN 62021-1:2003
Current
The latest, up-to-date edition.
INSULATING LIQUIDS - DETERMINATION OF ACIDITY - PART 1: AUTOMATIC POTENTIOMETRIC TITRATION
Hardcopy , PDF
English
01-01-2003
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.
Dates of withdrawal of national standards are available from NSAI.
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FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents and auxiliary products
5.1 Reagents
5.2 Titration reagent
5.3 Titration solvent
5.4 Potassium hydrogen phthalate, primary standard
5.5 Potassium chloride reference electrolyte
5.6 Aqueous buffer solutions
5.7 Cleaning solution
6 Apparatus
6.1 Potentiometric titration apparatus
6.2 Glass indicating electrode
6.3 Reference electrode
6.4 Stirrer
6.5 Titration vessel
6.6 Titration stand
7 Sampling
8 Preparation and maintenance of electrode system
9 Calibration of apparatus
10 Procedure
10.1 Standardization of alcoholic potassium hydroxide
solution
10.2 Blank titration
10.3 Sample titration
11 Calculation
12 Precision
12.1 Repeatability
12.2 Reproducibility
13 Report
Bibliography
Specifies the procedure for the determination of the acidity of unused and used electrical mineral insulating oils. The method may be used to indicate relative changes that occur in a mineral insulating oil during use under oxidizing conditions regardless of the colour or other properties of the resulting mineral oil.
| Committee |
IEC/TC 10
|
| 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
|
| ISBN |
2-8318-7097-6
|
| Pages |
40
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Standards | Relationship |
| EN 62021-1:2003 | Identical |
| NBN EN 62021-1 : 2003 | Identical |
| SN EN 62021-1 : 2003 | Identical |
| UNE-EN 62021-1:2004 | Identical |
| IEC 62021-1:2003 | Identical |
| NF EN 62021-1 : 2004 | Identical |
| BS EN 62021-1:2003 | Identical |
| DIN EN 62021-1 : 2004 | Identical |
| IEC 60475:2011 | Method of sampling insulating liquids |
| ISO 6619:1988 | Petroleum products and lubricants — Neutralization number — Potentiometric titration method |
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