NEN EN 14718 : 2014

Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Principle
5 Reagents
   5.1 Sodium hypochlorite solution
   5.2 Test water
   5.3 Rinsing water
   5.4 Cleaning liquids for apparatus
6 Apparatus for Chlorine Demand Assessment
7 Procedural Constraints
8 Samples of Products and Test Pieces
   8.1 Factory made products
   8.2 Site applied products
   8.3 Surface-area-to-volume ratio (S/V)
9 Preparation of Test Water and Apparatus
   9.1 Test water
   9.2 Preparation of apparatus
   9.3 Cleaning of the glassware
   9.4 Cleaning of stainless steel
10 Test Procedure
   10.1 General
   10.2 Flushing
   10.3 Stagnation
   10.4 Pre-washing
   10.5 Determination of chlorine demand
   10.6 Determination of free chlorine
11 Expression of Results
   11.1 Description of the calculation
   11.2 Validation of the test results
12 Test Report
   a) Information on the product
   b) Information on the procedure
   c) Test results
Annex A (normative) Procedure for establishing the
        suitability of apparatus and test water
Annex B (informative) Arrangement for flushing large
        diameters pipes

Defines a method for determining the chlorine demand of organic materials intended for use in contact with drinking water. Pertains to factory made and site applied products used for the distribution, transport and storage of drinking water.