oSIST prEN 936:2021

Chemicals used for treatment of water intended for human consumption - Carbon dioxide

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

Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Kohlenstoffdioxid

Dieses Dokument gilt für Kohlenstoffdioxid zur Aufbereitung von Wasser für den menschlichen Gebrauch. Es beschreibt die Eigenschaften von Kohlenstoffdioxid und legt die Anforderungen sowie die entsprechenden Analysenverfahren für Kohlenstoffdioxid fest. Des Weiteren enthält es Angaben zur Anwendung von Kohlenstoffdioxid in der Wasseraufbereitung.

Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Dioxyde de carbone

Le présent document est applicable au dioxyde de carbone utilisé pour le traitement de l’eau destinée à la consommation humaine. Il décrit les caractéristiques et spécifie les exigences ainsi que les méthodes d’analyse correspondantes, pour le dioxyde de carbone. Il fournit également des informations relatives à son emploi dans le traitement de l’eau.

Kemikalije, ki se uporabljajo za pripravo pitne vode - Ogljikov dioksid

General Information

• Status: Not Published
• Public Enquiry End Date: 24-Apr-2021
• 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: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 09-Mar-2021
• Due Date: 27-Jul-2021
• Completion Date: 28-May-2021
• Ref Project: prEN 936 - Chemicals used for treatment of water intended for human consumption - Carbon dioxide

Relations

• Revised: SIST EN 936:2014 - Chemicals used for treatment of water intended for human consumption - Carbon dioxide
• Effective Date: 01-Apr-2021
• Revised: SIST EN 936:2014 - Chemicals used for treatment of water intended for human consumption - Carbon dioxide
• Effective Date: 18-Jan-2023
• Revised: SIST EN 936:2014 - Chemicals used for treatment of water intended for human consumption - Carbon dioxide
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 936:2021
01-april-2021
Kemikalije, ki se uporabljajo za pripravo pitne vode - Ogljikov dioksid
Chemicals used for treatment of water intended for human consumption - Carbon dioxide
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch -
Kohlenstoffdioxid
Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation
humaine - Dioxyde de carbone
Ta slovenski standard je istoveten z: prEN 936
ICS:
13.060.20 Pitna voda Drinking water
71.100.80 Kemikalije za čiščenje vode Chemicals for purification of
water
oSIST prEN 936:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 936:2021

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oSIST prEN 936:2021


DRAFT
EUROPEAN STANDARD
prEN 936
NORME EUROPÉENNE

EUROPÄISCHE NORM

February 2021
ICS 71.100.80 Will supersede EN 936:2013
English Version

Chemicals used for treatment of water intended for human
consumption - Carbon dioxide
Produits chimiques utilisés pour le traitement de l'eau Produkte zur Aufbereitung von Wasser für den
destinée à la consommation humaine - Dioxyde de menschlichen Gebrauch - Kohlenstoffdioxid
carbone
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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 936:2021 E
worldwide for CEN national Members.

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oSIST prEN 936:2021
prEN 936:2021 (E)
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 . 6
4.1.5 Chemical formula . 6
4.1.6 CAS Registry Number . 6
4.1.7 EINECS reference . 6
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 Melting 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 . 7
4.3.11 Physical hardness . 7
4.4 Chemical properties . 7
5 Purity criteria . 8
5.1 General. 8
5.2 Composition of commercial product . 8
5.3 By-products . 8
5.4 Chemicals parameters. 9
6 Test methods . 10
6.1 Sampling . 10
6.2 Analysis . 10
6.2.1 Carbon dioxide . 10
6.2.2 Impurities . 10
7 Labelling - Transportation - Storage . 10
7.1 Means of delivery . 10
7.2 Labelling according to the EU legislation . 11
7.3 Transportation regulations and labelling . 11
7.4 Marking . 12
7.5 Storage . 12
2

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oSIST prEN 936:2021
prEN 936:2021 (E)
Annex A (informative) General information on carbon dioxide. 13
A.1 Origin . 13
A.1.1 Raw materials . 13
A.1.2 Manufacturing process . 13
A.2 Use . 13
A.2.1 Function . 13
A.2.2 Form in which it is used . 13
A.2.3 Treatment dose . 13
A.2.4 Means of application. 13
A.2.5 Secondary effects . 13
A.2.6 Removal of excess of product . 13
A.3 General rules relating to safety . 13
A.3.1 Rules for safe handling and use . 13
A.3.2 Emergency procedures . 14
Bibliography . 15

3

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oSIST prEN 936:2021
prEN 936:2021 (E)
European foreword
This document (prEN 936:2021) 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 936:2013.
In comparison with the previous edition, the following technical modifications have been made:
— possible impurities are taken into account and partly changed in Table 2;
— update of the references quoted in the Bibliography;
— modification of 7.3 on transportation regulations and labelling, adding the sentence “The user shall
be aware of the incompatibilities between transported products.”;
— modification of 7.4 on marking. The requirements of marking are also applied to the accompanying
documents, and the regulation [6] is now quoted.
4

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oSIST prEN 936:2021
prEN 936:2021 (E)
Introduction
In respect to the 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 us
...