prEN 15664-1

Influence of metallic materials on water intended for human consumption - Dynamic rig test for assessment of metal release - Part 1: Design and operation

This document specifies a procedure to determine the release of metals from metallic materials used in products intended to come into contact with drinking water.
The test can be used for three purposes:
a)   To assess a material as a reference material for a new category of materials by metal release testing using the results of several investigations in different waters covering a broad range of water compositions;
b)   To assess a material for an existing category for approval by way of metal release testing using the water defined in part 2, which exhibited the highest metal release when the reference material of the category was tested;
c)   To obtain data on the interaction of local water with a material.

Einfluss metallischer Werkstoffe auf Wasser für den menschlichen Gebrauch - Dynamischer Prüfstandversuch für die Beurteilung der Abgabe von Metallen - Teil 1: Auslegung und Betrieb

Dieses Dokument legt ein Verfahren zur Bestimmung der Metallabgabe von metallischen Werkstoffen fest, die in Produkten verwendet werden, die für den Kontakt mit Trinkwasser vorgesehen sind.
Die Prüfung kann für die folgenden drei Aufgabenstellungen eingesetzt werden:
a)   Beurteilung eines Referenzwerkstoffs für eine neue Werkstoffkategorie durch Prüfung der Metallabgabe, wobei die Ergebnisse mehrerer Untersuchungen mit verschiedenen Wässern zu verwenden sind, die eine große Spanne möglicher Wasserbeschaffenheiten abdecken.
b)   Beurteilung eines Materials für eine bestehende Kategorie im Hinblick auf die Zulassung durch Prüfung der Metallabgabe unter Verwendung des in Teil 2 definierten Wassers, das bei der Prüfung des Referenzmaterials der Kategorie die höchste Metallabgabe aufwies;
c)   Beurteilung der Wechselwirkung des örtlichen Wassers mit einem Werkstoff.

Influence des matériaux métalliques sur l'eau destinée à la consommation humaine - Banc d'essai dynamique pour l'évaluation du relargage de métaux - Partie 1 : Conception et fonctionnement

Le présent document spécifie un mode opératoire pour déterminer l’émission de métaux à partir de matériaux métalliques employés dans des produits destinés à entrer en contact avec de l’eau potable.
L’essai peut être utilisé pour trois buts :
a)   évaluer un matériau comme matériau de référence pour une nouvelle catégorie de matériaux au moyen d’essais d’émission de métaux en utilisant les résultats de plusieurs investigations dans différentes eaux couvrant une large gamme de compositions de l’eau ;
b)   évaluer un matériau pour une catégorie existante en vue de son approbation au moyen d’essais d’émission de métaux en utilisant l’eau définie dans la partie 2, qui a présenté l’émission de métaux la plus élevée lorsque le matériau de référence de la catégorie a été soumis à l’essai ;
c)   obtenir des données sur l’interaction de l’eau locale avec un matériau.

Vpliv kovinskih materialov na pripravo pitne vode - Dinamično preskuševališče za ocenjevanje izločanja kovin - 1. del: Načrtovanje in delovanje

General Information

• Status: Not Published
• Publication Date: 08-Feb-2026
• ICS: 67.250 - Materials and articles in contact with foodstuffs
• Technical Committee: CEN/TC 164 - Water supply
• Drafting Committee: CEN/TC 164/WG 3 - Effects of materials in contact with drinking water
• Current Stage: 4060 - Closure of enquiry - Enquiry
• Start Date: 10-Oct-2024
• Due Date: 16-Dec-2024
• Completion Date: 10-Oct-2024
• Ref Project: oSIST prEN 15664-1:2024 - Influence of metallic materials on water intended for human consumption - Dynamic rig test for assessment of metal release - Part 1: Design and operation

Relations

• Revises: EN 15664-1:2008+A1:2013 - Influence of metallic materials on water intended for human consumption - Dynamic rig test for assessment of metal release - Part 1: Design and operation
• Effective Date: 29-Nov-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2024
Vpliv kovinskih materialov na pripravo pitne vode - Dinamično preskuševališče za
ocenjevanje izločanja kovin - 1. del: Načrtovanje in delovanje
Influence of metallic materials on water intended for human consumption - Dynamic rig
test for assessment of metal release - Part 1: Design and operation
Einfluss metallischer Werkstoffe auf Wasser für den menschlichen Gebrauch -
Dynamischer Prüfstandversuch für die Beurteilung der Abgabe von Metallen - Teil 1:
Auslegung und Betrieb
Influence des matériaux métalliques sur l'eau destinée à la consommation humaine -
Banc d'essai dynamique pour l'évaluation du relargage de métaux - Partie 1 :
Conception et fonctionnement
Ta slovenski standard je istoveten z: prEN 15664-1
ICS:
13.060.20 Pitna voda Drinking water
67.250 Materiali in predmeti v stiku z Materials and articles in
živili contact with foodstuffs
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2024
ICS 67.250 Will supersede EN 15664-1:2008+A1:2013
English Version
Influence of metallic materials on water intended for
human consumption - Dynamic rig test for assessment of
metal release - Part 1: Design and operation
Influence des matériaux métalliques sur l'eau destinée Einfluss metallischer Werkstoffe auf Wasser für den
à la consommation humaine - Banc d'essai dynamique menschlichen Gebrauch - Dynamischer
pour l'évaluation du relargage de métaux - Partie 1 : Prüfstandversuch für die Beurteilung der Abgabe von
Conception et fonctionnement Metallen - Teil 1: Auslegung und Betrieb
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 164.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15664-1:2024 E
worldwide for CEN national Members.

Contents Page
European foreword .3
Introduction .4
1 Scope .5
2 Normative references .5
3 Terms and definitions .6
4 Principle .8
5 Test rig .8
5.1 General .8
5.2 Test rig arrangement.9
5.3 Control line .9
5.4 Test lines .9
5.4.1 General .9
5.4.2 Materials in the form of pipes .9
5.4.3 Materials in the form of test pieces .9
6 Operating conditions . 10
6.1 General . 10
6.2 Conditioning . 10
6.3 Fractional sampling . 10
6.3.1 General . 10
6.3.2 Calculation and expression of results for fractional sampling . 10
6.3.3 Requirements for the hydraulic function of the test rig . 12
6.3.4 Determination of sampling volumes . 12
6.4 Normal operation of the test rig . 13
7 Test water . 13
7.1 Composition . 13
7.2 Check of test water . 13
8 Sampling . 14
8.1 General . 14
8.2 Test water sampling . 14
8.3 Sampling to determine metal release . 14
8.4 Sampling volumes. 15
8.4.1 General . 15
8.4.2 Test lines with test pieces . 15
8.4.3 Test pipes . 15
9 Analysis . 15
10 Expression of results . 15
10.1 Metal concentrations after fixed stagnation time . 15
10.2 Equivalent pipe concentration. 15
10.3 Mean concentration after a given operating time . 16
10.4 Presentation of the test results . 16
11 Test report . 16
Annex A (normative) Test rig components and assembly . 18
A.1 Test rig . 18
A.2 Test piece . 20
A.3 Connecting piece. 20
Annex B (normative) Test rig flow regime . 22
B.1 Test rig flow regime and sampling plan (24 h cycle) . 22
B.2 Test rig flow regime and sampling plan for 16 h stagnation time . 23
Annex C (normative) Test water monitoring and analysis . 24
C.1 Data on test water composition . 24
Annex D (informative) Example of graphs for expression of results . 26

European foreword
This document (prEN 16554-1:2024) has been prepared by Technical Committee CEN/TC 164 “Water
supply”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 15664-1:2008+A1:2013.
This document is Part 1 of a series dealing with the test method to determine the release of metals from
metallic products into drinking water comprising:
— Part 1: Design and operation
— Part 2: Test waters
Introduction
This document is one of a series of test methods which support associated product standards.
NOTE 1 In respect of potential adverse effects on the quality of water intended for human consumption caused
by metallic materials, attention is drawn to relevant national regulations.
NOTE 2 Water intended for human consumption is hereafter referred to as “drinking water” and means the same
as the definition given at Article 2(1) of the Council Directive 98/83/EC on the quality of water intended for human
consumption.
Part 1 of EN 15664 describes a test method to produce contact waters for the assessment of metal release
from metallic materials.
The main application of metallic materials in water supply is within the domestic installation. The test
method given in this standard is designed to provide information on metal release over time from metallic
materials into drinking water.
The test is based on a programme of alternating periods of once-through flow and stagnation in a rig,
simulating the conditions in a domestic distribution system.
The test conditions are more relevant than conditions of continuous through-flow or sit and soak tests
and are applicable to all metallic materials in distribution systems.
Internal corrosion of metallic products in water conveying systems generally leads to the build-up of
layers, which might or might not be protective. The factors influencing corrosion are described in
EN 12502-1. Type and rate of the production of corrosion products and the rate of metal release can
depend on:
• characteristics of the metallic material;
• characteristics of the water;
• design and construction of the products and the complete system the products are installed in;
• tightness testing and commissioning of the system;
• operating conditions and duration of operation.
Corrosion product layers begin to form as soon as a metallic material comes into contact with water. Their
properties depend on the factors noted above and for a given water/material combination especially on
the operating conditions. It is not possible to reproduce the conditions of an actual installation in tests by
constant once-through flow or circulation
...