oSIST prEN 1420:2025

Influence of organic materials on water intended for human consumption - Determination of odour, flavour, colour and turbidity of water in piping and storage systems

This document specifies a procedure for obtaining a migration water to determine odour, flavour, colour and turbidity for products made from organic materials intended to come in contact with water for human consumption (drinking water) and used in piping and storage systems. Such products include pipes, tanks, reservoirs, fittings, ancillaries and their coatings both for site applied and factory-made products.
This document is applicable to products to be used under various conditions for the transport, storage and distribution of water intended for human consumption and raw water used for the manufacture of water intended for human consumption.
This document specifies a test method comprising a set of procedures. The use might be dependent on the relevant national regulations and/or the system or product standards.

Einfluss von organischen Werkstoffen auf Wasser für den menschlichen Gebrauch - Bestimmung des Geruchs und Geschmacks des Wassers in Rohrleitungssystemen

Dieses Dokument legt ein Verfahren zur Gewinnung eines Migrationswassers zur Bestimmung von Geruch, Geschmack, Färbung und Trübung von Produkten aus organischen Materialien fest, die für den Kontakt mit Wasser zum menschlichen Gebrauch (Trinkwasser) vorgesehen sind und in Rohrleitungs- und Speichersystemen verwendet werden. Zu solchen Produkten zählen Rohre, Tanks, Wasserbehälter, Formstücke und Ausrüstungsgegenstände sowie deren Beschichtungen für vor Ort aufgebrachte und fabrikmäßig hergestellte Produkte.
Dieses Dokument ist auf Produkte anwendbar, die unter verschiedenen Bedingungen für Transport, Lagerung und Verteilung von Wasser für den menschlichen Gebrauch und Rohwasser, das zu Wasser für den menschlichen Gebrauch aufbereitet werden soll, vorgesehen sind.
Dieses Dokument legt ein Prüfverfahren fest, das eine Anzahl von Verfahren umfasst. Die Anwendung könnte von den einschlägigen nationalen Vorschriften und/oder den System- oder Produktnormen abhängig sein.

Influence des matériaux organiques sur l'eau destinée à la consommation humaine - Détermination de l'odeur, de la flaveur, de la couleur et de la turbidité de l'eau dans les réseaux de conduites et les systèmes de stockage

Le présent document spécifie un mode opératoire permettant d’obtenir une eau de migration pour déterminer l’odeur, la flaveur, la couleur et la turbidité des produits à base de matériaux organiques conçus pour être en contact avec l’eau destinée à la consommation humaine (eau potable) et utilisés dans les réseaux de conduites et les systèmes de stockage. Ces produits sont notamment les tubes, les cuves, les réservoirs, les raccords, les accessoires et leurs revêtements, destinés aussi bien aux produits appliqués sur site qu’aux produits fabriqués en usine.
Le présent document est applicable aux produits conçus pour être utilisés dans différentes conditions de transport, stockage et distribution de l’eau destinée à la consommation humaine et de l’eau brute utilisée pour produire de l’eau destinée à la consommation humaine.
Il spécifie une méthode d’essai comprenant un ensemble de modes opératoires. L’utilisation peut dépendre des réglementations nationales de référence et/ou des normes de système ou de produit.

Vpliv organskih snovi na pitno vodo - Ugotavljanje vonja, okusa, barve in motnosti vode v vodovodnih in skladniščnih sistemih

General Information

• Status: Not Published
• Public Enquiry End Date: 27-Feb-2025
• ICS: 13.060.20 - Drinking water
• ICS: 67.250 - Materials and articles in contact with foodstuffs
• ICS: 91.140.60 - Water supply systems
• Technical Committee: IOVO - Water supply and waste water engineering
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 19-Dec-2024
• Due Date: 08-May-2025
• Directive: 98/83/EC - Quality of water intended for human consumption
• Mandate: M/136 REV2 - Revised mandate M/136 to CEN and CENELEC concerning the execution of standardisation work for harmonised standards on construction products in contact with water intended for human consumption related to the following end use: Transportation, storage and distribution up to, and including the consumer tap of the water intended for human consumption
• Ref Project: prEN 1420 - Influence of organic materials on water intended for human consumption - Determination of odour, flavour, colour and turbidity of water in piping and storage systems

Relations

• Revises: SIST EN 1420:2016 - Influence of organic materials on water intended for human consumption - Determination of odour and flavour assessment of water in piping systems
• Effective Date: 31-May-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2025
Vpliv organskih snovi na pitno vodo - Ugotavljanje vonja, okusa, barve in motnosti
vode v vodovodnih in skladniščnih sistemih
Influence of organic materials on water intended for human consumption - Determination
of odour, flavour, colour and turbidity of water in piping and storage systems
Einfluss von organischen Werkstoffen auf Wasser für den menschlichen Gebrauch -
Bestimmung des Geruchs und Geschmacks des Wassers in Rohrleitungssystemen
Influence des matériaux organiques sur l'eau destinée à la consommation humaine -
Détermination de l'odeur, de la flaveur, de la couleur et de la turbidité de l'eau dans les
réseaux de conduites et les systèmes de stockage
Ta slovenski standard je istoveten z: prEN 1420
ICS:
13.060.20 Pitna voda Drinking water
91.140.60 Sistemi za oskrbo z vodo Water supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2024
ICS 13.060.20 Will supersede EN 1420:2016
English Version
Influence of organic materials on water intended for
human consumption - Determination of odour, flavour,
colour and turbidity of water in piping and storage
systems
Influence des matériaux organiques sur l'eau destinée Einfluss von organischen Werkstoffen auf Wasser für
à la consommation humaine - Détermination de den menschlichen Gebrauch - Bestimmung des Geruchs
l'odeur, de la flaveur, de la couleur et de la turbidité de und Geschmacks des Wassers in Rohrleitungssystemen
l'eau dans les réseaux de conduites et les systèmes de
stockage
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 1420:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Principle . 8
5 Reagents . 9
5.1 Waters to be used for testing . 9
5.2 Sodium hypochlorite solution . 9
5.3 Sodium thiosulfate solution . 9
5.4 Ascorbic acid solution . 9
5.5 1-Butanol (analytic reagent grade) . 9
5.6 2-Methoxy-2-methylpropane (Methyl-tert-butyl ether, MtBE) (analytic reagent
grade) . 9
5.7 Cleaning liquids for glassware . 9
6 Apparatus . 10
7 Sampling, transport, storage, and preparation of test pieces . 10
7.1 General. 10
7.2 Site-applied products . 11
7.3 Surface-area-to-volume ratio (S/V) . 11
8 Preparation of reagents and apparatus . 13
8.1 Test water . 13
8.2 Test water with chlorine content . 13
8.3 Cleaning of glassware . 13
9 Pretreatment of test pieces . 13
9.1 General. 13
9.2 Test pieces to be tested at (23 ± 2) °C (Cold water test) . 14
9.3 Test pieces to be tested at elevated temperature (60 °C or 85 °C) . 14
9.4 Prewashing . 14
10 Test procedure . 15
10.1 General. 15
10.2 Cold water test procedure . 15
10.3 Elevated temperature test procedure . 15
11 Determination of TON and TFN . 16
12 Determination of colour and turbidity . 16
13 Expression of results . 16
14 Test report . 16
14.1 General information . 16
14.2 Information on the product/material . 17
14.3 Information for site-applied products . 17
14.4 Information on the test procedure . 18
14.5 Test results. 18
Annex A (informative) Schematic presentation of test method. 19
Annex B (normative) Sequence of additional migration periods . 21
Annex C (normative) Panel qualification for odour and flavour testing . 23
C.1 General . 23
C.2 Individual TON determination. 23
C.3 Ranking test . 24
C.4 Long term monitoring . 24
Annex D (informative) Preparation of dilution series for panel qualification . 25
D.1 Series of successive MtBE dilutions . 25
D.2 Series of successive 1-butanol concentrations . 25
Bibliography . 27

European foreword
This document (prEN 1420:2024) has been prepared by Technical Committee CEN/TC 164 “Water
supply”, the secretariat of which is held by AFNOR.
This document will supersede EN 1420-1:2016.
This document includes the following standards:
— EN 13052-1:2001, Influence of materials on water intended for human consumption – Organic
materials – Determination of colour and turbidity of water in piping systems – Part 1: Test method
— EN 14395-1:2004, Influence of organic materials on water intended for human consumption —
Organoleptic assessment of water in storage systems — Part 1: Test method
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
— the test methods for turbidity and colour have been included,
— the scope of the standard has been extended: all organic products (included storage systems) can
be tested according to this standard.
Introduction
In respect of potential adverse effects on the quality of the water intended for human consumption,
arising from contact with materials used for conveying and distribution, it is recalled to mind that,
national regulations remain in force.
1 Scope
This document specifies a procedure for obtaining a migration water to determine odour, flavour,
colour and turbidity for products made from organic materials intended to come in contact with water
for human consumption (drinking water) and used in piping and storage systems. Such products
include pipes, tanks, reservoirs, fittings, ancillaries and their coatings both for site applied and factory-
made products.
This document is applicable to products to be used under various conditions for the transport, storage
and distribution of water intended for human consumption and raw water used for the manufacture of
water intended for human consumption.
This document specifies a test method comprising a set of procedures. The use might be dependent on
the relevant national regulations and/or the system or product standards.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 1622, Water quality — Determination of the threshold odour number (TON) and threshold flavour
number (TFN)
EN 12873
...