kSIST FprEN 882:2026

• Abstract:

  This document is applicable to sodium aluminate used for treatment of water intended for human consumption. It describes the characteristics and specifies the requirements of sodium aluminate and refers to the corresponding analytical methods. It gives information for its use in water treatment. It also specifies the rules relating to safe handling (Annex B) and describes the use of sodium aluminate (Annex A).

• Status: Not Published
• Public Enquiry End Date: 15-Oct-2025
• 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: 5020 - Formal vote (FV) (Adopted Project)
• Start Date: 28-Aug-2026
• Due Date: 16-Oct-2026
• Completion Date: 02-Sep-2026
• Ref Project: FprEN 882 - Chemicals used for treatment of water intended for human consumption - Sodium aluminate

• Revises: SIST EN 882:2016 - Chemicals used for treatment of water intended for human consumption - Sodium aluminate
• Effective Date: 19-Jan-2023

Overview

kSIST FprEN 882:2026 specifies requirements and guidance for the use of sodium aluminate as a treatment chemical in water intended for human consumption. Issued by SIST and following the European standardization process, this document details the characteristics, purity criteria, analytical methods, and safe handling practices for sodium aluminate. It also outlines its effective application in drinking water treatment processes.

Sodium aluminate is a widely used coagulant and flocculant in water treatment plants, valued for its effectiveness in clarifying water and facilitating the removal of suspended solids. Ensuring compliance with this standard helps deliver high-quality drinking water while meeting stringent regulatory and safety requirements.

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Key Topics

• Product Identification

  • Sodium aluminate (chemical names: aluminium sodium oxide, aluminium sodium tetrahdyroxide)
  • CAS Numbers: 1302-42-7, 12251-53-5
  • Empirical formulas and commercial forms: available as solid (powder, granules) or liquid solution

• Physical and Chemical Properties

  • Appearance: white powder/granules or colorless to yellow liquid
  • High solubility in water; strongly alkaline pH
  • Density and viscosity depend on product form and concentration

• Purity and Impurity Criteria

  • Sets minimum purity levels and restricts common impurities (e.g., iron, arsenic, cadmium, chromium, lead, mercury, nickel, antimony, selenium)
  • Commercial products are classified by content of water-soluble aluminum

• Analytical Methods

  • Sampling and analysis in accordance with EN 1302 and related standards
  • Quality checks ensure product suitability for use in drinking water

• Labelling, Transportation, and Storage

  • Marking requirements: product name, supplier details, compliance statement
  • Labelling in line with EU hazardous substances regulations (H314, H290)
  • Defined storage periods and compatibility requirements for materials

• Safety and Environmental Considerations

  • Detailed rules for safe handling, spill management, and emergency procedures
  • Non-flammable, but strongly alkaline and reactive with certain metals

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Applications

Adherence to kSIST FprEN 882:2026 ensures sodium aluminate is safely and effectively used in the following applications:

• Drinking Water Treatment

  • Employed as a coagulant and flocculant to remove suspended solids
  • Adjusts pH and alkalinity, facilitating efficient removal of impurities and improving clarification
  • Can be used in both pre- and post-treatment stages

• Optimized Dosage and Application

  • Solid sodium aluminate is typically diluted with deionized water before dosing
  • Solutions are metered into water using positive displacement pumps with adequate mixing for rapid dispersion
  • Dosage levels are determined by water quality and treatment objectives

• Operational Compatibility

  • Suitable for use in various types of water treatment plants
  • Provides a reliable option for water utilities striving for compliance with EU drinking water directives

• Safety in Handling

  • Storage and handling protocols help prevent hazardous reactions and ensure personnel safety
  • Compliance supports risk reduction and regulatory adherence during transport, storage, and use

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Related Standards

• EN 1302: Analytical methods for aluminum-based coagulants in water treatment
• Directive (EU) 2020/2184: Water quality for human consumption
• Regulation (EC) No 1272/2008: Classification, labelling, and packaging of substances and mixtures (CLP)
• Related national standards on water treatment chemicals and handling procedures

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Following kSIST FprEN 882:2026 improves water safety, quality, and regulatory compliance for utilities and suppliers involved in the preparation and delivery of potable water using sodium aluminate. For water treatment organizations, conformity with this standard represents a vital step in the supply of safe drinking water and the protection of public health.

SLOVENSKI STANDARD
oSIST prEN 882:2025
01-oktober-2025
Kemikalije, ki se uporabljajo za pripravo pitne vode - Natrijev aluminat
Chemicals used for treatment of water intended for human consumption - Sodium
aluminate
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch -
Natriumaluminat
Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation
humaine - Aluminate de sodium
Ta slovenski standard je istoveten z: prEN 882
ICS:
13.060.20 Pitna voda Drinking water
71.100.80 Kemikalije za čiščenje vode Chemicals for purification of
water
oSIST prEN 882:2025 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 882:2025
oSIST prEN 882:2025
DRAFT
EUROPEAN STANDARD
prEN 882
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2025
ICS 71.100.80 Will supersede EN 882:2016
English Version
Chemicals used for treatment of water intended for human
consumption - Sodium aluminate
Produits chimiques utilisés pour le traitement de l'eau Produkte zur Aufbereitung von Wasser für den
destinée à la consommation humaine - Aluminate de menschlichen Gebrauch - Natriumaluminat
sodium
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, Türkiye 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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 882:2025 E
worldwide for CEN national Members.

oSIST prEN 882:2025
prEN 882:2025 (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 . 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 . 7
4.3.4 Vapour pressure . 7
4.3.5 Boiling point at 100 kPa . 8
4.3.6 Melting or 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 . 9
5 Purity criteria . 9
5.1 General . 9
5.2 Composition of commercial product . 9
5.3 Impurities and main by-products . 10
5.4 Chemical parameters . 10
6 Test methods . 10
6.1 Sampling . 10
6.2 Analyses . 11
7 Labelling – Transportation – Storage . 11
7.1 Means of delivery . 11
7.2 Labelling in accordance with the EU legislation . 11
7.3 Transportation regulations and labelling . 12
7.4 Marking . 12
7.5 Storage . 12
7.5.1 General . 12
oSIST prEN 882:2025
prEN 882:2025 (E)
7.5.2 Long term stability . 13
7.5.3 Storage incompatibilities . 13
Annex A (informative) General information on sodium aluminate . 14
A.1 Origin . 14
A.1.1 Raw materials . 14
A.1.2 Manufacturing process . 14
A.2 Quality of commercial product . 14
A.3 Use . 16
A.3.1 Function . 16
A.3.2 Form in which it is used. 16
A.3.3 Treatment dose . 16
A.3.4 Means of application . 16
A.3.5 Secondary effects . 16
A.3.6 Removal of excess product . 17
Annex B (normative) General rules relating to safety . 18
B.1 Rules for safe handling and use . 18
B.2 Emergency procedures . 18
B.2.1 Accident . 18
B.2.2 Spillage . 18
B.2.3 Fire . 18
Bibliography . 19

oSIST prEN 882:2025
prEN 882:2025 (E)
European foreword
This document (prEN 882:2025) has been prepared by Technical Committee CEN/TC 164 “Water
supply”, the secretariat of which is held by AFNOR.
This document has been submitted to the CEN Enquiry.
This document will supersede EN 882:2016.
Significant technical differences between this edition prEN 882:2025 and EN 882:2016 are as follows:
a) update of the information related to Drinking Water Directive.

oSIST prEN 882:2025
prEN 882:2025 (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.

oSIST prEN 882:2025
prEN 882:2025 (E)
1 Scope
This document is applicable to sodium aluminate used for treatment of water intended for human
consumption. It describes the characteristics and specifies the requirements of sodium aluminate 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 (Annex B) and use of sodium aluminate (Annex A).
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 1302, Chemicals used for treatment of water intended for human consumption — Aluminium-based
coagulants — Analytical methods
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
4 Description
4.1 Identification
4.1.1 Chemical name
Aluminium sodium oxide
Aluminium sodium dioxide
Aluminium sodium tetrahydroxide
4.1.2 Synonym or common name
Sodium aluminate
4.1.3 Relative molecular mass
82 for NaAlO .
4.1.4 Empirical formula
a) NaAlO .
b) NaAlO 0,1 Na O⋅nH O (n varies from 0,3 to 0,4).
2 2 2
...