EN 12873-2:2005

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
   5.1 General
   5.2 Waters to be used for testing
   5.3 Cleaning liquids for glassware
   5.4 Other reagents
6 Apparatus
7 Test pieces
   7.1 General requirements
   7.2 Requirements for the preparation of test piece
        7.2.1 Site-applied organic lining systems for pipes
        7.2.2 Jointing compounds (solvent cements, adhesives)
        7.2.3 Other site-applied materials (e.g. greases and
              sealants)
   7.3 Surface-area-to-volume ratio (S/V)
8 Pretreatment of test pieces
   8.1 General
   8.2 Test pieces to be tested at (23 +/- 2) degree C
        8.2.1 Flushing
        8.2.2 Stagnation with test water
        8.2.3 Stagnation with disinfection treatment water
   8.3 Test pieces to be tested at elevated temperature
        (60 degree C to 85 degree C)
        8.3.1 Flushing
        8.3.2 Stagnation with disinfection treatment water
              at (23 +/- 2) degree C
        8.3.3 Stagnation with test water at elevated temperature
   8.4 Prewashing
9 Test procedure
   9.1 Migration of substances
   9.2 Procedural blank tests
   9.3 Analysis
10 Calculation of test results
   10.1 Calculation of the concentration of the substances in
        the migration water
   10.2 Calculation of the migration rate of the measured
        substances
   10.3 Calculation of the mean migration rate
11 Test report
   11.1 General information
   11.2 Information on the material
   11.3 Information on the test pieces
   11.4 Information on the test procedure
   11.5 Test results
Annex A (informative) Arrangement for flushing pipes with
                      nominal size greater than DN 80
Annex B (normative) Additional procedure for testing
                      non-homogeneous products and pipes with
                      nominal size greater than DN 80
                      B.1 Arrangement for testing
                      B.2 Flushing of the test piece
                      B.3 Blank test
Annex C (informative) Sequence of additional migration
                      periods in the migration test
                      C.1 Introduction
                      C.2 Migration tests
Annex D (informative) Procedural tests using standard
                      additions (positive controls)
Annex E (informative) Flow diagrams for migration test
                      procedure for cold water temperature and
                      elevated temperature

This European Standard specifies a procedure to determine the migration of substances from non-metallic and non-cementitious site-applied materials for use in contact with water intended for human consumption. It is applicable to site-applied materials intended to be used under various conditions for the transport and storage of water intended for human consumption, including raw water used for the production of water intended for human consumption. It covers the extraction by water of constituents from these materials after their application on site.The standard is applicable to materials whose physical or chemical properties alter during or after on-site application, such as coatings, paints, and adhesives. In addition, some site-applied materials that do not change in such a manner, e.g. greases or lubricants, are also included.