EN 60156:1995

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Electrical apparatus
   3.1 Voltage regulator
   3.2 Step-up transformer
   3.3 Current-limiting resistors
   3.4 Switching system
   3.5 Measuring device
4 Test assembly
   4.1 Test cell
   4.2 Electrodes
   4.3 Stirring (optional)
5 Preparation of electrodes
6 Test assembly preparation
7 Sampling
   7.1 Sample containers
   7.2 Sampling techniques
8 Condition of the sample
9 Test procedure
   9.1 Sample preparation
   9.2 Filling of the cell
   9.3 Application of voltage
10 Report
11 Test data dispersion
Figures
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications

Describes an empirical test procedure intended to indicate the presence of contaminants such as water and solid suspended matter, and the advisability of carrying out drying and filtration treatment. Standardized testing procedures and equipment are essential for the unambiguous interpretation of test results.