EN 12173:2012
(Main)Chemicals used for treatment of water intended for human consumption - Sodium fluoride
Chemicals used for treatment of water intended for human consumption - Sodium fluoride
This European Standard is applicable to sodium fluoride used for treatment of water intended for human consumption. It describes the characteristics of sodium fluoride and specifies the requirements and the corresponding test methods for sodium fluoride. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use (see Annex B).
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Natriumfluorid
Diese Europäische Norm gilt für Natriumfluorid zur Aufbereitung von Wasser für den menschlichen Gebrauch. Sie beschreibt die Eigenschaften von Natriumfluorid und legt die Anforderungen sowie die entsprechenden Prüfverfahren für Natriumfluorid fest. Sie enthält Angaben zu dessen Anwendung in der Wasseraufbereitung. Sie legt darüber hinaus Regeln für die sichere Handhabung und Verwendung fest (siehe Anhang B).
Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Fluorure de sodium
La présente Norme européenne s'applique au fluorure de sodium utilisé pour le traitement de l'eau destinée à la consommation humaine. Elle décrit les caractéristiques du fluorure de sodium, en spécifie les exigences ainsi que les méthodes d'essai correspondantes. Elle donne des informations pour son emploi dans le traitement de l'eau. Elle fixe également les règles relatives à la sécurité d'emploi et de manipulation (voir Annexe B).
Kemikalije, ki se uporabljajo za pripravo pitne vode - Natrijev fluorid
Ta dokument obravnava natrijev fluorid, ki se uporablja za pripravo pitne vode. Opisuje značilnosti natrijevega fluorida ter določa zahteve in ustrezne preskusne metode zanj. Standard podaja informacije za uporabo natrijevega fluorida pri pripravi vode. Določa tudi pravila za varno ravnanje in uporabo.
General Information
- Status
- Published
- Publication Date
- 30-Oct-2012
- Withdrawal Date
- 29-Apr-2013
- Technical Committee
- CEN/TC 164 - Water supply
- Drafting Committee
- CEN/TC 164/WG 9 - Drinking water treatment
- Current Stage
- 9060 - Closure of 2 Year Review Enquiry - Review Enquiry
- Start Date
- 02-Dec-2024
- Completion Date
- 02-Dec-2024
Relations
- Effective Date
- 07-Nov-2012
- 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 12173:2012 - Chemicals used for treatment of water intended for human consumption - Sodium fluoride (CEN) is the European product standard that defines the characteristics, purity requirements, test methods and safe‑handling rules for sodium fluoride used in drinking‑water treatment. Approved by CEN in 2012 (superseding EN 12173:2005), the standard covers identification, physical/chemical properties, labelling, transportation, storage and safety measures (Annex B), and gives guidance on use in water treatment.
Key topics and technical requirements
- Scope: Applies specifically to sodium fluoride (NaF) for treatment of water intended for human consumption.
- Identification and properties: Chemical name NaF, empirical formula NaF, relative molecular mass 42; commercial form as colourless crystalline powder or crystals; solubility ≈ 40 g/L at 20 °C; bulk and crystal density ranges given.
- Purity criteria:
- Minimum NaF content: not less than 98 % (mass fraction).
- Content tolerance: ±5 % of the manufacturer’s declared value.
- Physical impurities: water‑insoluble matter max 0.5 %, moisture max 0.5 %.
- Trace elements (limits in mg/kg): Antimony (Sb) ≤ 1, Arsenic (As) ≤ 5, Cadmium (Cd) ≤ 0.1, Chromium (Cr) ≤ 4, Lead (Pb) ≤ 4, Mercury (Hg) ≤ 0.1, Nickel (Ni) ≤ 4, Selenium (Se) ≤ 1.
- Test methods and sampling: References and procedures for sampling and analysis (ISO/EN methods) are specified - e.g., ISO 2831, ISO 2832, ISO 2833 for insoluble matter, moisture and fluorine content; ISO 3165/6206/8213 for sampling; EN ISO 3696 for analytical water quality. Analytical techniques include hydride‑AAS for As/Sb/Se and flameless AAS for Hg; atomic absorption methods for trace metals.
- Safety, labelling, transport and storage: Requirements and practical rules are included, with Annex B giving general safety rules and the standard addressing labelling and transport considerations.
Applications and who uses this standard
- Water utilities and municipal water authorities specifying or procuring sodium fluoride for fluoridation programs.
- Chemical manufacturers and suppliers producing, certifying and labelling sodium fluoride for drinking‑water use.
- Analytical and testing laboratories performing conformity checks against the standard’s purity and trace‑metal limits.
- Regulators and public‑health bodies assessing product suitability and compliance for human consumption water treatment.
- Consultants and engineers designing fluoridation dosing systems and safety procedures.
Related standards
- EN ISO 3696 (water for analytical laboratory use)
- ISO 2831 / ISO 2832 / ISO 2833 (NaF test methods)
- ISO 3165, ISO 6206, ISO 8213 (sampling)
- ISO 6353‑1, ISO 5993 (trace analysis methods)
EN 12173:2012 is a practical reference for selecting, testing and safely handling sodium fluoride in drinking‑water treatment while ensuring compliance with recognized European test and quality methods.
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Frequently Asked Questions
EN 12173:2012 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 - Sodium fluoride". This standard covers: This European Standard is applicable to sodium fluoride used for treatment of water intended for human consumption. It describes the characteristics of sodium fluoride and specifies the requirements and the corresponding test methods for sodium fluoride. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use (see Annex B).
This European Standard is applicable to sodium fluoride used for treatment of water intended for human consumption. It describes the characteristics of sodium fluoride and specifies the requirements and the corresponding test methods for sodium fluoride. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use (see Annex B).
EN 12173:2012 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 12173:2012 has the following relationships with other standards: It is inter standard links to EN 12173:2005, EN ISO 3696:1995, EN ISO 8751:1997, EN 438-2:2005, EN 1998-6:2005, EN ISO 28927-4:2010. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 12173:2012 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)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kemikalije, ki se uporabljajo za pripravo pitne vode - Natrijev fluoridProdukte zur Aufbereitung von Wasser für den menschlichen Gebrauch - NatriumfluoridProduits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Fluorure de sodiumChemicals used for treatment of water intended for human consumption - Sodium fluoride71.100.80Chemicals for purification of water13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 12173:2012SIST EN 12173:2013en,fr,de01-april-2013SIST EN 12173:2013SLOVENSKI
STANDARDSIST EN 12173:20051DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12173
October 2012 ICS 71.100.80 Supersedes EN 12173:2005English Version
Chemicals used for treatment of water intended for human consumption - Sodium fluoride
Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Fluorure de sodium Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Natriumfluorid This European Standard was approved by CEN on 23 September 2012.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12173:2012: ESIST EN 12173:2013
General information on sodium fluoride . 16Annex B (normative)
General rules relating to safety . 17Bibliography . 18 SIST EN 12173:2013
The bulk density of the product is 0,6 g/cm3 to 1,4 g/cm3 at 20 °C. 3.3.3 Solubility (in water) The solubility of the product in water is 40 g/l at 20°C. 3.3.4 Vapour pressure Not applicable. 3.3.5 Boiling point at 100 kPa 3)
The product boils at approximately 1 700 °C.
3.3.6 Crystallisation point The product melts at approximately 988 °C. 3.3.7 Specific heat Not known.
1) Chemical Abstracts Service Registry Number. 2) European Inventory of Existing Commercial Chemical Substances. 3) 100 kPa = 1 bar. SIST EN 12173:2013
4.3 Impurities and main by-products The product shall conform to the requirements specified in Table 1. Table 1 — Impurities Impurity Limit in mass fraction in % of commercial product Water-insoluble matter
max 0,5 Moisture
max 0,5 SIST EN 12173:2013
mg/kg of commercial product Antimony (Sb) max 1 Arsenic (As) max 5 Cadmium (Cd) max 0,1 Chromium (Cr) max 4 Lead (Pb) max 4 Mercury (Hg) max 0,1 Nickel (Ni) max 4 Selenium (Se) max 1 NOTE Other chemical parameters and indicator parameters are not relevant in sodium fluoride because the raw materials used in the manufacturing process are free of them. For parametric values of sodium fluoride on trace metal content in drinking water, see [1]. 5 Test methods 5.1 Sampling Observe the general recommendations of ISO 3165 and take account of ISO 6206. Prepare the laboratory sample(s) required by the relevant procedure described in ISO 8213. 5.2 Analyses 5.2.1 General All reagents shall be of a recognised analytical grade and the water used shall conform to the grade 3 specified in EN ISO 3696. 5.2.2 Main product The mass fraction of fluorine (C1) in % shall be determined in accordance with ISO 2833. The sodium fluoride content, C2, expressed as mass fraction in % is given by the following formula: C2 = C1 x 2,2101 (1)
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