EN 12122:2024

SLOVENSKI STANDARD
01-februar-2025
Nadomešča:
SIST EN 12122:2005
Kemikalije, ki se uporabljajo za pripravo pitne vode - Raztopina amonijaka
Chemicals used for treatment of water intended for human consumption - Ammonia
solution
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch -
Ammoniaklösung
Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation
humaine - Ammoniaque
Ta slovenski standard je istoveten z: EN 12122:2024
ICS:
13.060.20 Pitna voda Drinking water
71.100.80 Kemikalije za čiščenje vode Chemicals for purification of
water
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 12122
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2024
EUROPÄISCHE NORM
ICS 71.100.80 Supersedes EN 12122:2005
English Version
Chemicals used for treatment of water intended for human
consumption - Ammonia solution
Produits chimiques utilisés pour le traitement de l'eau Produkte zur Aufbereitung von Wasser für den
destinée à la consommation humaine - Ammoniaque menschlichen Gebrauch - Ammoniaklösung
This European Standard was approved by CEN on 5 August 2024.

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. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists 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.
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. EN 12122:2024 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 Description . 6
4.1 IDENTIFICATION . 6
4.1.1 CHEMICAL NAME . 6
4.1.2 SYNONYM OR COMMON NAME . 6
4.1.3 RELATIVE MOLECULAR MASS . 6
4.1.4 EMPIRICAL FORMULA . 7
4.1.5 CHEMICAL FORMULA . 7
4.1.6 CAS-REGISTRY NUMBER . 7
4.1.7 EINECS REFERENCE . 7
4.2 COMMERCIAL FORM . 7
4.3 PHYSICAL PROPERTIES . 7
4.3.1 APPEARANCE AND ODOUR . 7
4.3.2 DENSITY . 7
4.3.3 SOLUBILITY. 7
4.3.4 VAPOUR PRESSURE . 7
4.3.5 BOILING POINT AT 100 KPA . 8
4.3.6 CRYSTALLIZATION POINT . 8
4.3.7 SPECIFIC HEAT . 8
4.3.8 VISCOSITY, DYNAMIC . 8
4.3.9 CRITICAL TEMPERATURE . 8
4.3.10 CRITICAL PRESSURE . 8
4.3.11 PHYSICAL HARDNESS . 8
4.4 CHEMICAL PROPERTIES . 8
5 Purity criteria . 8
5.1 GENERAL . 8
5.2 COMPOSITION OF COMMERCIAL PRODUCT . 9
5.3 IMPURITIES AND MAIN BY-PRODUCTS . 9
5.4 CHEMICAL PARAMETERS . 9
6 Test methods . 10
6.1 SAMPLING . 10
6.2 ANALYSES . 10
6.2.1 MAIN PRODUCT . 10
6.2.2 IMPURITIES . 10
6.2.3 CHEMICAL PARAMETERS . 10
7 Labelling – Transportation – Storage. 15
7.1 MEANS OF DELIVERY . 15
7.2 RISK AND SAFETY LABELLING . 15
7.3 TRANSPORTATION REGULATIONS AND LABELLING . 17
7.4 MARKING . 17
7.5 STORAGE . 17
7.5.1 GENERAL . 17
7.5.2 LONG TERM STABILITY . 17
7.5.3 STORAGE INCOMPATIBILITIES . 17
Annex A (informative) General information on ammonia solution . 18
Annex B (informative) General rules relating to safety . 19
Bibliography . 20
European foreword
This document (EN 12122:2024) has been prepared by Technical Committee CEN/TC 164 “Water
supply”, the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2025, and conflicting national standards shall be
withdrawn at the latest by June 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 12122:2005.
a) modification of 7.4: The requirements of marking are also applied to the accompanying documents;
b) modification of 7.2: adaptation of GHS labelling for the 2 concentration ranges of the commercially
available products for the commercially available products.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: 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 the United
Kingdom.
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) no information as to whether the product may be used without restriction is provided;
b) national regulations concerning the use and/or the characteristics of this product might exist.
NOTE Conformity with this document does not confer or imply acceptance or approval of the product. The use
of the product covered by this document could be subject to regulation or control by National Authorities.
1 Scope
This document is applicable to ammonia solution used for treatment of water intended for human
consumption. It describes the characteristics and specifies the requirements of ammonia solution and
refers to the corresponding analytical methods. It gives information for its use in water treatment. It also
provides basic information relating to safe handling and use of ammonia solution (see Annex B).
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 la
...