EN 1772:2000

Foreword
Introduction
1 Scope
2 Normative references
3 Term and definition
4 Principle
5 Reagents and products
6 Apparatus
7 Sampling
8 Procedure
      8.1 Test portion
      8.2 Preparation of the surface active agent
             solution
      8.3 Preparation of the discs of cotton control
             cloth
      8.4 Cleaning the apparatus
      8.5 Filling the measurement beaker
      8.6 Determination (see Figure 3)
      8.7 Calibration of the cloth
9 Expression of results
10 Test report
Annex A (informative) Commercially available control cloths
Bibliography

This European Standard specifies a method for determining the wetting power of a surface active agent in solution by immersion of a disc of raw cotton cloth in the solution. The method is applicable to all surface active agents, whatever their ionic character, used as wetting agents in neutral, slightly acid or slightly basic baths for textile applications. The method is not applicable to mercerizing agents (baths highly basic) or to carbonizing assistants (baths highly acid).