EN 974:2003
(Main)Chemicals used for treatment of water intended for human consumption - Phosphoric acid
Chemicals used for treatment of water intended for human consumption - Phosphoric acid
This European Standard is applicable to phosphoric acid used for treatment of water intended for human consumption. It describes the characteristics and specifies the requirements and the corresponding test methods for phosphoric acid. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use (see annex B).
NOTE Conformity with this standard 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 European Standard is subject to regulation or control by National Authorities.
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Phosphorsäure
Diese Europäische Norm gilt für Phosphorsäure zur Aufbereitung von Wasser für den menschlichen Gebrauch. Sie beschreibt die Eigenschaften von Phosphorsäure und legt die Anforderungen sowie die entsprechenden Prüfverfahren für Phosphorsäure fest. Sie gibt Informationen für die Anwendung von Phosphorsäure in der Wasseraufbereitung. Sie legt Regeln für die sichere Handhabung und Benutzung von Phosphorsäure fest (siehe Anhang B).
ANMERKUNG Eine Übereinstimmung mit dieser Norm bedeutet keine gleichzeitige Annahme oder Zulassung des Produktes in einem der Mitgliedsländer der EU oder EFTA. Die Anwendung des in dieser Europäischen Norm beschrie-benen Produktes hängt von den jeweiligen Regelungen der nationalen autorisierten Stellen ab.
Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Acide phosphorique
La présente Norme européenne s'applique à l'acide phosphorique utilisé dans le traitement de l'eau destinée à la consommation humaine. Elle décrit les caractéristiques et précise les prescriptions et les méthodes d'essai de l'acide phosphorique correspondantes. Elle donne des informations sur son emploi dans le traitement de l'eau. Elle fixe également les règles relatives à la sécurité d'emploi et de manipulation (voir l'annexe B).
NOTE La conformité à la présente norme ne confère ni n'implique l'acceptation ou l'approbation du produit dans l'un des Etats membres de l'UE ou de l'AELE. L'utilisation du produit relevant de la présente Norme européenne fait l'objet d'une réglementation ou de contrôles de la part des autorités nationales.
Kemikalije za pripravo pitne vode - Fosforjeva kislina
General Information
- Status
- Published
- Publication Date
- 28-Oct-2003
- Withdrawal Date
- 29-Apr-2004
- Technical Committee
- CEN/TC 164 - Water supply
- Drafting Committee
- CEN/TC 164 - Water supply
- Current Stage
- 9060 - Closure of 2 Year Review Enquiry - Review Enquiry
- Start Date
- 03-Jun-2020
- Completion Date
- 03-Jun-2020
- Directive
- 89/106/EEC - Construction products
Relations
- Replaces
EN 974:1997 - Chemicals used for treatment of water intended for human consumption - Phosphoric acid - Effective Date
- 22-Dec-2008
- Effective Date
- 09-Feb-2026
- Effective Date
- 09-Feb-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN 974:2003 - issued by CEN - is the European standard that applies to phosphoric acid used for the treatment of water intended for human consumption. The standard describes the required characteristics, defines requirements, and specifies the corresponding test methods for phosphoric acid when supplied for use in drinking water treatment. It also provides information on the product’s use in water-treatment processes and sets out rules for safe handling and use (see Annex B). Note: conformity with EN 974:2003 does not by itself imply national acceptance or approval in EU/EFTA Member States; national regulation or control may apply.
Key Topics
- Scope and applicability: Covers phosphoric acid specifically when used in water intended for human consumption.
- Product characteristics: Defines the essential properties and quality attributes that suppliers should document.
- Requirements: Specifies the mandatory criteria phosphoric acid must meet for use in drinking-water treatment (quality, purity-related aspects).
- Test methods: Identifies the analytical and testing procedures required to verify compliance with the standard.
- Information on use: Provides guidance for appropriate application in water-treatment contexts.
- Safety and handling: Annex B details rules and recommendations for safe storage, transport, and handling of phosphoric acid used in water supply systems.
- Compliance note: Clarifies regulatory status - product conformity to EN 974:2003 is separate from national approvals.
Applications
EN 974:2003 is intended to support safe, consistent supply and use of phosphoric acid in drinking water treatment. Typical practical uses of the standard include:
- Ensuring procurement specifications for water utilities and municipalities are clear and verifiable.
- Guiding chemical manufacturers and suppliers on required product information and test evidence.
- Supporting laboratory testing and quality control to confirm product conformance.
- Informing safety officers and operations personnel about handling and storage requirements in treatment plants.
- Assisting consultants and engineering firms when specifying chemicals in tender documents and design reports.
Who should use this standard
- Water utilities and distributors
- Chemical manufacturers and suppliers
- Accredited testing laboratories
- Regulatory authorities and public-health bodies
- Consulting engineers and procurement teams
- Plant safety and operations personnel
Related standards
EN 974:2003 sits alongside other CEN and national standards that cover chemicals and procedures for treatment of drinking water. Users should consult relevant national regulations and complementary EN standards on water treatment chemicals, testing methods, and safety data to ensure full regulatory and technical compliance.
Keywords: EN 974:2003, phosphoric acid, treatment of water, drinking water, water treatment chemicals, CEN, test methods, safe handling.
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Frequently Asked Questions
EN 974:2003 is a standard published by the European Committee for Standardization (CEN). Its full title is "Chemicals used for treatment of water intended for human consumption - Phosphoric acid". This standard covers: This European Standard is applicable to phosphoric acid used for treatment of water intended for human consumption. It describes the characteristics and specifies the requirements and the corresponding test methods for phosphoric acid. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use (see annex B). NOTE Conformity with this standard 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 European Standard is subject to regulation or control by National Authorities.
This European Standard is applicable to phosphoric acid used for treatment of water intended for human consumption. It describes the characteristics and specifies the requirements and the corresponding test methods for phosphoric acid. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use (see annex B). NOTE Conformity with this standard 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 European Standard is subject to regulation or control by National Authorities.
EN 974:2003 is classified under the following ICS (International Classification for Standards) categories: 71.100.80 - Chemicals for purification of water. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 974:2003 has the following relationships with other standards: It is inter standard links to EN 974:1997, ISO 6353-2:1983, ISO 2997:1974, EN 1998-6:2005, EN 12483:1999, EN ISO 3696:1995, EN 27326:1993, EN 438-2:2005, EN ISO 8751:1997. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 974:2003 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
EN 974:2003 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2004
1DGRPHãþD
SIST EN 974:1999
Kemikalije za pripravo pitne vode - Fosforjeva kislina
Chemicals used for treatment of water intended for human consumption - Phosphoric
acid
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Phosphorsäure
Produits chimiques utilisés pour le traitement de l'eau destinée a la consommation
humaine - Acide phosphorique
Ta slovenski standard je istoveten z: EN 974:2003
ICS:
13.060.20 Pitna voda Drinking water
71.100.80 .HPLNDOLMH]DþLãþHQMHYRGH Chemicals for purification of
water
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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