IEC 62021-2 : 1.0

Table of Contents

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

Abstract

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

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 10