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BS EN 12873-2:2021 – TC:2022 Edition

BS EN 12873-2:2021 – TC:2022 Edition

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Tracked Changes. Influence of materials on water intended for human consumption. Influence due to migration – Test method for non-metallic and noncementitious site-applied materials

Published By Publication Date Number of Pages
BSI 2022 78
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This document 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 substances from these materials after their application on site. The document 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.

PDF Catalog

PDF Pages PDF Title
46 undefined
51 1 Scope
2 Normative references
3 Terms and definitions
53 4 Principle
5 Reagents
5.1 General
54 5.2 Waters to be used for testing
5.3 Cleaning liquids for glassware
5.4 Other reagents
6 Apparatus
55 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
56 7.2.2 Jointing compounds (solvent cements, adhesives)
7.2.3 Other site-applied materials (e.g. linings for tanks, greases and sealants)
7.3 Surface-area-to-volume ratio (S/V)
8 Pre-treatment of test pieces
8.1 General
57 8.2 Test pieces to be tested at (23 ± 2) °C (Cold water test)
8.2.1 Flushing
8.2.2 Stagnation with test water
8.3 Test pieces to be tested at elevated temperature (60 °C and/or 85 °C)
8.3.1 Flushing
8.3.2 Stagnation with test water at elevated temperature
8.4 Prewashing
9 Test procedure
9.1 Migration of substances
9.1.1 General
58 9.1.2 Cold water test procedure
9.1.3 Elevated temperature test procedure
9.2 Procedural blank tests
59 9.3 Analysis
10 Calculation of test results
10.1 Calculation of the concentration of the substances in the migration water
60 10.2 Calculation of the migration rate of the measured substances
11 Test report
11.1 Content of the test report
11.2 General information
61 11.3 Information on the material
11.4 Information on the test pieces
62 11.5 Information on the test procedure
11.6 Test results
64 Annex A (normative)Arrangement for flushing pipes with nominal size greater than DN 80
67 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
B.4 Sealing
70 B.5 Calculation of the surface area-to-volume ratio (S/V) value for test arrangement 1
72 Annex C (informative)Examples of extended collection and analysis of migration waters
74 Annex D (informative)Procedural tests using standard additions (positive controls)
75 Annex E (informative)Flow diagrams (Figures E.1 and E.2) for migration test procedure for cold water temperature and elevated temperature

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BS EN 12873-2:2021 - TC
$217.84