SIST EN 12123:2022

Chemicals used for treatment of water intended for human consumption - Ammonium sulfate

This document is applicable to ammonium sulfate used for treatment of water intended for human consumption. It describes the characteristics and specifies the requirements of ammonium sulfate and refers to the corresponding analytical methods. It gives information on its use in water treatment.

Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Ammoniumsulfat

Dieses Dokument gilt für Ammoniumsulfat zur Aufbereitung von Wasser für den menschlichen Gebrauch. Es beschreibt die Eigenschaften von Ammoniumsulfat, legt die Anforderungen an Ammoniumsulfat fest und verweist auf die entsprechenden Analysenverfahren. Es enthält Angaben zu dessen Anwendung in der Wasseraufbereitung.

Produits chimiques utilisés pour le traitement de l’eau destinée à la consommation humaine - Sulfate d'ammonium

Le présent document s’applique au sulfate d’ammonium utilisé pour le traitement de l’eau destinée à la consommation humaine. Il décrit les caractéristiques du sulfate d’ammonium, en spécifie les exigences ainsi que les méthodes d’analyse correspondante. Il donne des informations pour son emploi dans le traitement de l’eau.

Kemikalije, ki se uporabljajo za pripravo pitne vode - Amonijev sulfat

Ta dokument obravnava amonijev sulfat, ki se uporablja za pripravo pitne vode. Opisuje značilnosti in določa zahteve za amonijev sulfat ter se navezuje na ustrezne analizne metode. Podaja informacije za njegovo uporabo pri pripravi vode.

General Information

• Status: Published
• Public Enquiry End Date: 19-Jul-2020
• Publication Date: 11-May-2022
• ICS: 13.060.20 - Drinking water
• ICS: 71.100.80 - Chemicals for purification of water
• Technical Committee: IOVO - Water supply and waste water engineering
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 11-May-2022
• Due Date: 16-Jul-2022
• Completion Date: 12-May-2022
• Ref Project: EN 12123:2022 - Chemicals used for treatment of water intended for human consumption - Ammonium sulfate

RELATIONS

• Replaces: SIST EN 12123:2013 - Chemicals used for treatment of water intended for human consumption - Ammonium sulfate
• Effective Date: 01-Jul-2022
• Replaces: SIST EN 12123:2013 - Chemicals used for treatment of water intended for human consumption - Ammonium sulfate
• Effective Date: 08-Jun-2022

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN 12123:2022
01-junij-2022
Nadomešča:
SIST EN 12123:2013
Kemikalije, ki se uporabljajo za pripravo pitne vode - Amonijev sulfat
Chemicals used for treatment of water intended for human consumption - Ammonium
sulfate
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch -
Ammoniumsulfat

Produits chimiques utilisés pour le traitement de l’eau destinée à la consommation

humaine - Sulfate d'ammonium
Ta slovenski standard je istoveten z: EN 12123:2022
ICS:
13.060.20 Pitna voda Drinking water
71.100.80 Kemikalije za čiščenje vode Chemicals for purification of
water
SIST EN 12123:2022 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 12123:2022
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SIST EN 12123:2022
EN 12123
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2022
EUROPÄISCHE NORM
ICS 71.100.80 Supersedes EN 12123:2012
English Version
Chemicals used for treatment of water intended for human
consumption - Ammonium sulfate

Produits chimiques utilisés pour le traitement de l'eau Produkte zur Aufbereitung von Wasser für den

destinée à la consommation humaine - Sulfate menschlichen Gebrauch - Ammoniumsulfat

d'ammonium
This European Standard was approved by CEN on 13 March 2022.

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, Turkey 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

© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12123:2022 E

worldwide for CEN national Members.
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SIST EN 12123:2022
EN 12123:2022 (E)
Contents Page

European foreword ...................................................................................................................................................... 4

Introduction .................................................................................................................................................................... 5

1 Scope .................................................................................................................................................................... 6

2 Normative references .................................................................................................................................... 6

3 Terms and definitons .................................................................................................................................... 6

4 Description ........................................................................................................................................................ 6

4.1 Identification .................................................................................................................................................... 6

4.1.1 Chemical name ................................................................................................................................................. 6

4.1.2 Synonym or commons 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 ....................................................................................................................................................... 7

4.3.2 Density ................................................................................................................................................................ 7

4.3.3 Solubility in water .......................................................................................................................................... 7

4.3.4 Vapour pressure .............................................................................................................................................. 7

4.3.5 Boiling point at 100 kPa .............................................................................................................................. 7

4.3.6 Crystallization point ...................................................................................................................................... 7

4.3.7 Specific heat ...................................................................................................................................................... 7

4.3.8 Viscosity dynamic ........................................................................................................................................... 7

4.3.9 Critical temperature ...................................................................................................................................... 7

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 ....................................................................................................... 8

5.3 Impurities and main by-products ............................................................................................................. 9

5.4 Chemical parameters..................................................................................................................................... 9

6 Test methods .................................................................................................................................................... 9

6.1 Sampling ............................................................................................................................................................. 9

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 Labelling according to the EU legislation ............................................................................................. 15

7.3 Transportation regulations and labelling ........................................................................................... 15

7.4 Marking ............................................................................................................................................................ 15

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SIST EN 12123:2022
EN 12123:2022 (E)

7.5 Storage .............................................................................................................................................................. 15

7.5.1 Long term stability ....................................................................................................................................... 15

7.5.2 Storage incompatibilities ........................................................................................................................... 15

Annex A (informative) General information on ammonium sulfate ......................................................... 16

A.1 Origin ................................................................................................................................................................ 16

A.1.1 Raw materials ................................................................................................................................................ 16

A.1.2 Manufacturing process ............................................................................................................................... 16

A.2 Use ...................................................................................................................................................................... 16

A.2.1 Function ........................................................................................................................................................... 16

A.2.2 Form in which it is used ............................................................................................................................. 16

A.2.3 Treatment dose ............................................................................................................................................. 16

A.2.4 Means of application.................................................................................................................................... 16

A.2.5 Secondary effects .......................................................................................................................................... 16

A.2.6 Removal of excess product ........................................................................................................................ 16

Annex B (normative) General rules relating to safety ................................................................................... 17

B.1 Rules for safe handling and use ............................................................................................................... 17

B.2 Emergency procedures ............................................................................................................................... 17

B.2.1 First aid ............................................................................................................................................................ 17

B.2.2 Spillage ............................................................................................................................................................. 17

B.2.3 Fire ..................................................................................................................................................................... 17

Bibliography ................................................................................................................................................................. 18

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SIST EN 12123:2022
EN 12123:2022 (E)
European foreword

This document (EN 12123:2022) 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 October 2022, and conflicting national standards shall

be withdrawn at the latest by October 2022.

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 12123:2012.

In comparison with the previous edition EN 12123:2012, 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.

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, Turkey and the

United Kingdom.
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SIST EN 12123:2022
EN 12123:2022 (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

or control by National Authorities (see Annex A).
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SIST EN 12123:2022
EN 12123:2022 (E)
1 Scope

This document is applicable to ammonium sulfate used for treatment of water intended for human

consumption. It describes the characteristics and specifies the requirements of ammonium sulfate and

refers to the corresponding analytical methods. It gives information on its use in water treatment.

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 ISO 3696, Water for analytical laboratory use — Specification and test methods (ISO 3696)

ISO 760, Determination of water — Karl Fischer method (General method)

ISO 2992, Ammonium sulphate for industrial use — Determination of iron content — 2,2'- Bipyridyl

photometric method

ISO 2993, Ammonium sulphate for industrial use — Determination of free acidity — Titrimetric method

ISO 3332, Ammonium sulphate for industrial use — Determination of ammoniacal nitrogen content —

Titrimetric method after distillation

ISO 5993, Sodium hydroxide for industrial use — Determination of mercury content — Flameless atomic

absorption spectrometric method
ISO 6353-1, Reagents for chemical analysis — Part 1: General test methods

ISO 8213, Chemical products for industrial use — Sampling techniques — Solid chemical products in the

form of particles varying from powders to coarse lumps
3 Terms and definitons
No terms and definitions are listed in this document.
ISO and IEC maintain terminological database
...

SLOVENSKI STANDARD
oSIST prEN 12123:2020
01-julij-2020
Kemikalije, ki se uporabljajo za pripravo pitne vode - Amonijev sulfat
Chemicals used for treatment of water intended for human consumption - Ammonium
sulfate
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch -
Ammoniumsulfat

Produits chimiques utilisés pour le traitement de l’eau destinée à la consommation

humaine - Sulfate d'ammonium
Ta slovenski standard je istoveten z: prEN 12123
ICS:
13.060.20 Pitna voda Drinking water
71.100.80 Kemikalije za čiščenje vode Chemicals for purification of
water
oSIST prEN 12123:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 12123:2020
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oSIST prEN 12123:2020
DRAFT
EUROPEAN STANDARD
prEN 12123
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2020
ICS 71.100.80 Will supersede EN 12123:2012
English Version
Chemicals used for treatment of water intended for human
consumption - Ammonium sulfate

Produits chimiques utilisés pour le traitement de l'eau Produkte zur Aufbereitung von Wasser für den

destinée à la consommation humaine - Sulfate menschlichen Gebrauch - Ammoniumsulfat

d'ammonium

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, 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 12123:2020 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
oSIST prEN 12123:2020
prEN 12123:2020 (E)
Contents Page

European foreword ...................................................................................................................................................... 3

Introduction .................................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitons .................................................................................................................................... 5

4 Description ........................................................................................................................................................ 5

4.1 Identification .................................................................................................................................................... 5

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 ....................................................................................................... 7

5.3 Impurities and main by-products ............................................................................................................. 8

5.4 Chemical parameters..................................................................................................................................... 8

6 Test methods .................................................................................................................................................... 8

6.1 Sampling ............................................................................................................................................................. 8

6.2 Analyses.............................................................................................................................................................. 9

7 Labelling – Transportation – Storage .................................................................................................... 14

7.1 Means of delivery .......................................................................................................................................... 14

7.2 Labelling according to the EU legislation ............................................................................................ 14

7.3 Transportation regulations and labelling ........................................................................................... 14

7.4 Marking ............................................................................................................................................................ 14

7.5 Storage .............................................................................................................................................................. 14

Annex A (informative) General information on ammonium sulfate ....................................................... 15

A.1 Origin ................................................................................................................................................................. 15

A.2 Use ...................................................................................................................................................................... 15

A.3 General rules relating to safety ............................................................................................................... 15

Bibliography ................................................................................................................................................................. 17

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oSIST prEN 12123:2020
prEN 12123:2020 (E)
European foreword

This document (prEN 12123:2020) 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 12123:2012.

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 12123:2020
prEN 12123:2020 (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

or control by National Authorities.
---------------------- Page: 6 ----------------------
oSIST prEN 12123:2020
prEN 12123:2020 (E)
1 Scope

This document is applicable to ammonium sulfate used for treatment of water intended for human

consumption. It describes the characteristics and specifies the requirements of ammonium sulfate and

refers to the corresponding analytical methods. It gives information on its use in water treatment.

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 ISO 3696, Water for analytical laboratory use — Specification and test methods (ISO 3696)

ISO 760, Determination of water — Karl Fischer method (General method)

ISO 2992, Ammonium sulphate for industrial use — Determination of iron content — 2,2′- bipyridyl

photometric method

ISO 2993, Ammonium sulphate for industrial use — Determination of free acidity — Titrimetric method

ISO 3332, Ammonium sulphate for industrial use — Determination of ammoniacal nitrogen content —

Titrimetric method after distillation

ISO 5993, Sodium hydroxide for industrial use — Determination of mercury content — Flameless atomic

absorption spectrometric method
ISO 6353-1, Reagents for chemical analysis — Part 1: General test methods

ISO 8213, Chemical products for industrial use — Sampling techniques — Solid chemical products in the

form of particles varying from powders to coarse lumps
3 Terms and definitons
No terms and definitions are listed in this document.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

• ISO Online browsing platform: available at https://www.iso.org/obp/ui
• IEC Electropedia: available at http://www.electropedia.org/
4 Description
4.1 Identification
4.1.1 Chemical name
Ammonium sulfate.
4.1.2 Synonym or commons name
Ammonium sulfate.
4.1.3 Relative molecular mass
132,14.
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oSIST prEN 12123:2020
prEN 12123:2020 (E)
4.1.4 Empirical formula
(NH ) S0 .
4 2 4
4.1.5 Chemical formula
(NH ) S0 .
4 2 4
4.1.6 CAS-Registry Number
7783-20-2.
4.1.7 EINECS reference
213-984-1.
4.2 Commercial form
The product is a powder.
4.3 Physical properties
4.3.1 Appearance
The product is a white, fine crystalline powder.
4.3.2 Density
The density of the product is 1,8 g/cm at 20 °C.
4.3.3 Solubility in water
The solubility of the product in water is 767 g/l at 25 °C.
4.3.4 Vapour pressure
Not applicable.
4.3.5 Boiling point at 100 kPa
Not applicable.
4.3.6 Crystallization point
The product decomposes above 235°C.
4.3.7 Specific heat
Not known.
4.3.8 Viscosity dynamic
Not applicable.
4.3.9 Critical temperature
Not applicable.
Chemical Abstracts Service Registry Number.
European Inventory of Existing Commercial Chemical Substances.
100 kPa = 1 bar.
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oSIST prEN 12123:2020
prEN 12123:2020 (E)
4.3.10 Critical pressure
Not applicable.
4.3.11 Physical hardness
Not applicable.
4.4 Chemical properties

Ammonium sulfate easily dissolves in water. A saturated solution (706 g/l at 0 °C) has a pH value of

approximately 6.
Upon heating with chlorates, nitrates or nitrites it reacts violently.

Above 235 °C the product decomposes with formation of ammonia vapour, sulfur oxides.

5 Purity criteria
5.1 General

This document specifies the minimum purity requirements for ammonium sulfate used for the

treatment of water intended for human consumption. Limits are given for impurities commonly present

in the product. Depending on the raw material and the manufacturing process other impurities can be

present and, if so, this shall be notified to the user and, when necessary, to relevant authorities.

Users of this product should check the national regulations in order to clarify whether it is of

appropriate purity for treatment of water intended for human consumption, taking into account raw

water quality, required dosage, contents of other impurities and additives used in the product not

stated in this product standard.

Limits have been given for impurities and chemical parameters where these are likely to be present in

significant quantities from the current production process and raw materials. If the production process

or raw materials leads to significant quantities of impurities, by-products or additives being present,

this shall be notified to the user.
5.2 Composition of commercial product

The content of ammonium sulfate shall not be less than a mass fraction of 99 % corresponding to a

mass fraction of 21 % of ammoniacal nitrogen.
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oSIST prEN 12123:2020
prEN 12123:2020 (E)
5.3 Impurities and main by-products
The product shall conform to the requirements specified in Table 1.
Table 1 — Impurities
Impurit
...