SIST EN 14664:2023

Chemicals used for treatment of water intended for human consumption - Iron (III) sulfate, solid

This document is applicable to iron (III) sulfate solid used for treatment of water intended for human consumption. It describes the characteristics of iron (III) sulfate solid and specifies the requirements and the corresponding analytical methods for iron (III) sulfate solid and gives information on its use in water treatment. It also determines the rules relating to safe handling and use of iron (III) sulfate solid.

Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Eisen(III)sulfat, fest

Dieses Dokument ist für Eisen(III)sulfat, fest, zur Aufbereitung von Wasser für den menschlichen Gebrauch anwendbar. Es beschreibt die Eigenschaften von Eisen(III)sulfat, fest, und legt die Anforderungen sowie die entsprechenden Analysenverfahren für Eisen(III)sulfat, fest, fest und enthält Angaben für dessen Anwendung in der Wasseraufbereitung. Es legt darüber hinaus Regeln fest für die sichere Handhabung und Verwendung von Eisen(III)sulfat, fest.

Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Sulfate de fer (III), solide

Le présent document est applicable au sulfate de fer (III) solide utilisé pour le traitement de l'eau destinée à la consommation humaine. Il décrit les caractéristiques du sulfate de fer (III) solide, spécifie les exigences et les méthodes d'analyse correspondantes pour le sulfate de fer (III) solide et donne des informations sur son utilisation dans le traitement de l'eau. Il fixe également les règles relatives à la sécurité de manipulation et d’utilisation du sulfate de fer (III) solide.

Kemikalije, ki se uporabljajo za pripravo pitne vode - Železov (III) sulfat, v trdnem stanju

Ta dokument se uporablja za trdni železov (III) sulfat, ki se uporablja za čiščenje vode, namenjene človeškemu zaužitju. Navaja značilnosti trdnega železovega (III) sulfata, določa zahteve in ustrezne analitične metode za trdni železov (III) sulfat ter podaja informacije glede njegove uporabe pri pripravi vode. Določa tudi pravila za varno ravnanje s trdnim železovim (III) sulfatom in njegovo uporabo.

General Information

• Status: Published
• Public Enquiry End Date: 19-May-2020
• Publication Date: 16-Aug-2023
• 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: 05-Jul-2023
• Due Date: 09-Sep-2023
• Completion Date: 17-Aug-2023
• Ref Project: EN 14664:2023 - Chemicals used for treatment of water intended for human consumption - Iron (III) sulfate, solid

Relations

• Replaces: SIST EN 14664:2005 - Chemicals used for treatment of water intended for human consumption - Iron (III) sulfate, solid
• Effective Date: 01-Sep-2023
• Revised: oSIST prEN 14664:2025 - Chemicals used for treatment of water intended for human consumption - Iron (III) sulfate, solid
• Effective Date: 11-Dec-2024

Overview

EN 14664:2023 - published by CEN - is the European standard for iron (III) sulfate, solid (also known as ferric sulfate) used in the treatment of water intended for human consumption. The standard describes the product identity, commercial forms, physical and chemical properties, minimum purity requirements, rules for sampling and analysis, and guidance on safe handling, labelling, transport and storage. EN 14664:2023 supersedes EN 14664:2004 and aligns product information with current EU safety and drinking‑water regulations.

Key topics and requirements

• Scope and identification
  • Chemical name: Iron (III) sulfate, solid (ferric sulfate).
  • Formula: Fe2(SO4)3 · xH2O with x ≈ 5.5; relative molecular mass 499.0 g·mol⁻¹.
  • CAS: 10028-22-5; EINECS: 233-072-9.
• Physical and chemical data
  • Appearance: greyish or yellowish granules or powder.
  • Bulk density: ≈ 1 300 kg/m³ (granules), ≈ 1 000 kg/m³ (powders) at 20 °C.
  • Solubility: ≈ 550 g·dm⁻³ in water (~12.3 % w/w Fe at 20 °C).
  • Granule strength: greater than 50 N·mm⁻²; slightly hygroscopic above ~50 % RH.
• Purity, composition and commercial grades
  • Specifies minimum purity criteria, composition of commercial products, different grades and product types.
• Testing, sampling and analysis
  • References analytical methods via EN 17215 (Iron‑based coagulants - Analytical methods); analytical procedures were removed from EN 14664 and cross‑referenced to EN 17215.
• Safety, labelling and storage
  • Requirements for EU‑compliant risk and safety labelling, transportation labelling, marking, storage compatibility, long‑term stability and emergency procedures (first aid, spillage, fire).

Applications and who uses this standard

• Primary application: specification and safe use of iron (III) sulfate solid as a coagulant or reagent in drinking water treatment and potable water purification.
• Typical users:
  • Water utilities and treatment plant operators
  • Chemical manufacturers and suppliers of water‑treatment chemicals
  • Quality control and analytical laboratories
  • Procurement and compliance officers
  • Health & safety and environmental managers
  • Regulators and national standards bodies

Practical value

• Ensures consistent product quality, traceability and compliance for ferric sulfate used in potable water systems.
• Helps purchasers and operators select appropriate commercial grades and apply correct handling, storage and emergency procedures.
• Supports laboratory testing and conformity assessment by pointing to standardized analytical methods (EN 17215).

Related standards

• EN 17215 - Chemicals used for treatment of water intended for human consumption - Iron‑based coagulants - Analytical methods
• Relevant EU Drinking Water Directive requirements and current chemical labelling/transport regulations (as referenced in EN 14664:2023).

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2023
Nadomešča:
SIST EN 14664:2005
Kemikalije, ki se uporabljajo za pripravo pitne vode - Železov (III) sulfat, v trdnem
stanju
Chemicals used for treatment of water intended for human consumption - Iron (III)
sulfate, solid
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Eisen(III)sulfat,
fest
Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation
humaine - Sulfate de fer (III), solide
Ta slovenski standard je istoveten z: EN 14664:2023
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 14664
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2023
EUROPÄISCHE NORM
ICS 71.100.80 Supersedes EN 14664:2004
English Version
Chemicals used for treatment of water intended for human
consumption - Iron (III) sulfate, solid
Produits chimiques utilisés pour le traitement de l'eau Produkte zur Aufbereitung von Wasser für den
destinée à la consommation humaine - Sulfate de fer menschlichen Gebrauch - Eisen(III)sulfat, fest
(III), solide
This European Standard was approved by CEN on 2 January 2023.

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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14664:2023 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 names . 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® . 7
4.1.7 EINECS reference . 7
4.2 Commercial forms . 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 . 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 The grade of the product . 8
5.4 The type of the product . 9
6 Test methods . 10
6.1 Sampling . 10
6.2 Analyses . 10
7 Labelling - Transportation - Storage . 10
7.1 Means of delivery . 10
7.2 Risk and safety labelling according to the EU Directives . 10
7.3 Transportation regulations and labelling . 11
7.4 Marking . 12
7.5 Storage . 12
7.5.1 General . 12
7.5.2 Long term stability . 12
7.5.3 Storage incompatibilities . 12
Annex A (informative) General information on iron (III) sulfate solid . 13
A.1 Origin . 13
A.1.1 Raw materials . 13
A.1.2 Manufacturing process . 13
A.2 Quality of commercial product . 13
A.3 Use . 14
A.3.1 Function . 14
A.3.2 Form in which it is used. 14
A.3.3 Treatment dose . 15
A.3.4 Means of application . 15
A.3.5 Secondary effects . 15
A.3.6 Removal of excess product . 15
Annex B (normative) General rules relating to safety . 16
B.1 Rules for safe handling and use . 16
B.2 Emergency procedures . 16
B.2.1 First aid . 16
B.2.2 Spillage . 16
B.2.3 Fire . 16
Bibliography . 17

European foreword
This document (EN 14664:2023) 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 December 2023, and conflicting national standards
shall be withdrawn at the latest by December 2023.
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 14664:2004.
The main changes compared to the previous edition are listed below:
— removal of the analytical methods from this document and addition of reference to EN 17215 as
analytical method standard;
— update of the information on risk and safety labelling of the product to comply with the new
regulations (see 7.2 and [2]);
— update of the information related to the Drinking Water Directive.
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
With respect to 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
...