prEN 1421
(Main)Chemicals used for treatment of water intended for human consumption - Ammonium chloride
Chemicals used for treatment of water intended for human consumption - Ammonium chloride
This document is applicable to ammonium chloride used for treatment of water intended for human consumption. It describes the characteristics and specifies the requirements of ammonium chloride and refers to the corresponding analytical methods. It gives information for its use in water treatment. It also determines the rules relating to safe handling and use of ammonium chloride (see Annex B).
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Ammoniumchlorid
Dieses Dokument gilt für Ammoniumchlorid zur Aufbereitung von Wasser für den menschlichen Gebrauch. Es beschreibt die Eigenschaften von Ammoniumchlorid, legt die Anforderungen an Ammoniumchlorid fest und verweist auf die entsprechenden Analysenverfahren. Es enthält Angaben zu dessen Anwendung in der Wasseraufbereitung. Es legt darüber hinaus Regeln für die sichere Handhabung und Verwendung von Ammoniumchlorid fest (siehe Anhang B).
Produits chimiques utilisés pour le traitement de l’eau destinée à la consommation humaine - Chlorure d’ammonium
Le présent document s’applique au chlorure d’ammonium utilisé pour le traitement de l’eau destinée à la consommation humaine. Il décrit les caractéristiques du chlorure d’ammonium et spécifie les exigences et les méthodes d’essai correspondantes. Il donne des informations sur son emploi pour le traitement de l’eau. Il détermine également les règles relatives à la manipulation et à l’utilisation en toute sécurité du chlorure d’ammonium (voir l’Annexe B).
Kemikalije, ki se uporabljajo za pripravo pitne vode - Amonijev klorid
General Information
RELATIONS
Standards Content (sample)
SLOVENSKI STANDARD
oSIST prEN 1421:2020
01-september-2020
Kemikalije, ki se uporabljajo za pripravo pitne vode - Amonijev klorid
Chemicals used for treatment of water intended for human consumption - Ammonium
chloride
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch -
Ammoniumchlorid
Produits chimiques utilisés pour le traitement de l’eau destinée à la consommation
humaine - Chlorure d’ammoniumTa slovenski standard je istoveten z: prEN 1421
ICS:
13.060.20 Pitna voda Drinking water
71.100.80 Kemikalije za čiščenje vode Chemicals for purification of
water
oSIST prEN 1421:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 1421:2020
DRAFT
EUROPEAN STANDARD
prEN 1421
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2020
ICS 71.100.80 Will supersede EN 1421:2012
English Version
Chemicals used for treatment of water intended for human
consumption - Ammonium chloride
Produits chimiques utilisés pour le traitement de l'eau Produkte zur Aufbereitung von Wasser für den
destinée à la consommation humaine - Chlorure menschlichen Gebrauch - Ammoniumchlorid
d'ammoniumThis 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, Turkey 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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1421:2020 E
worldwide for CEN national Members.---------------------- Page: 3 ----------------------
oSIST prEN 1421:2020
prEN 1421:2020 (E)
Contents Page
European foreword ...................................................................................................................................................... 3
Introduction .................................................................................................................................................................... 4
1 Scope .................................................................................................................................................................... 5
2 Normative references .................................................................................................................................... 5
3 Terms and definitions ................................................................................................................................... 6
4 Description ........................................................................................................................................................ 6
4.1 Identification .................................................................................................................................................... 6
4.2 Commercial form ............................................................................................................................................ 6
4.3 Physical properties ........................................................................................................................................ 6
4.4 Chemical properties ....................................................................................................................................... 7
5 Purity criteria ................................................................................................................................................... 7
5.1 General................................................................................................................................................................ 7
5.2 Composition of commercial product ....................................................................................................... 8
5.3 Impurities and main by-products ............................................................................................................. 8
5.4 Chemical parameters..................................................................................................................................... 8
6 Test methods .................................................................................................................................................... 9
6.1 Sampling ............................................................................................................................................................. 9
6.2 Analyses.............................................................................................................................................................. 9
7 Labelling – Transportation – Storage .................................................................................................... 10
7.1 Means of delivery .......................................................................................................................................... 10
7.2 Labelling according to the EU legislation ............................................................................................ 10
7.3 Transportation regulations and labelling ........................................................................................... 11
7.4 Marking ............................................................................................................................................................ 11
7.5 Storage .............................................................................................................................................................. 11
Annex A (informative) General information on ammonium chloride .................................................... 12
A.1 Origin ................................................................................................................................................................. 12
A.2 Use ...................................................................................................................................................................... 12
Annex B (normative) General rules relating to safety .................................................................................. 13
B.1 Rules for safe handling and use ............................................................................................................... 13
B.2 Emergency procedures ............................................................................................................................... 13
Bibliography ................................................................................................................................................................. 14
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prEN 1421:2020 (E)
European foreword
This document (prEN 1421:2020) 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 1421:2012.
In comparison with the previous edition, the following technical modifications have been made:
a) modification of 7.3 on transportation regulations and labelling, adding the sentence “The user shall
be aware of the incompatibilities between transported products.”;b) modification of 7.4 on marking. The requirements of marking are also applied to the accompanying
documents.---------------------- Page: 5 ----------------------
oSIST prEN 1421:2020
prEN 1421:2020 (E)
Introduction
In respect of potential adverse effects on the quality of water intended for human consumption caused
by the product covered by this document:a) this document provides no information as to whether the product may be used without restriction
in any of the Member States of the EU or EFTA;b) it should be noted that, while awaiting the adoption of verifiable European criteria, existing national
regulations concerning the use and/or the characteristics of this product remain in force.
NOTE Conformity with this document does not confer or imply acceptance or approval of the product in any
of the Member States of the EU or EFTA. The use of the product covered by this document is subject to regulation
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oSIST prEN 1421:2020
prEN 1421:2020 (E)
1 Scope
This document is applicable to ammonium chloride used for treatment of water intended for human
consumption. It describes the characteristics and specifies the requirements of ammonium chloride and
refers to the corresponding analytical methods. It gives information for its use in water treatment. It
also determines the rules relating to safe handling and use of ammonium chloride (see Annex B).
2 Normative referencesThe 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 1233, Water quality — Determination of chromium — Atomic absorption spectrometric methods
EN ISO 3696, Water for analytical laboratory use — Specification and test methods (ISO 3696)
EN ISO 11885, Water quality — Determination of selected elements by inductively coupled plasma optical
emission spectrometry (ICP-OES) (ISO 11885)ISO 17378-2, Water quality — Determination of arsenic and antimony — Part 2: Method using hydride
generation atomic absorption spectrometry (HG-AAS)EN ISO 12846, Water quality — Determination of mercury — Method using atomic absorption
spectrometry (AAS) with and without enrichment (ISO 12846)ISO 2762, Hydrochloric acid for industrial use — Determination of soluble sulphates — Turbidimetric
methodISO 3332, Ammonium sulphate for industrial use — Determination of ammoniacal nitrogen content —
Titrimetric method after distillationISO 6332, Water quality — Determination of iron — Spectrometric method using 1,10-phenanthroline
ISO 8213, Chemical products for industrial use — Sampling techniques — Solid chemical products in the
form of particles varying from powders to coarse lumpsISO 8288:1986, Water quality — Determination of cobalt, nickel, copper, zinc, cadmium and lead —
Flame atomic absorption spectrometric methodsISO/TS 17379-2, Water quality — Determinatio
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