BS-EN-12173-2005.pdf
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1、BRITISH STANDARD BS EN 12173:2005 Products used for treatment of water intended for human consumption Sodium fluoride The European Standard EN 12173:2005 has the status of a British Standard ICS 71.100.80 ? Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:49:03 GMT+00:00 2006, Uncontrolled
2、Copy, (c) BSI BS EN 12173:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 16 January 2006 BSI 16 January 2006 ISBN 0 580 47486 0 National foreword This British Standard is the official English language version of EN 12173:2005. It supers
3、edes BS EN 12173:1999 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee CII/59, Chemicals for drinking water treatment, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. C
4、ross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or
5、of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text;
6、 present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an
7、 inside front cover, the EN title page, pages 2 to 13 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:49:03 GMT+00:00
8、 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12173 June 2005 ICS 71.100.80Supersedes EN 12173:1998 English Version Chemicals used for treatment of water intended for human consumption - Sodium fluoride Produits chimiques utiliss pour le traitement de leau de
9、stine la consommation humaine - Fluorure de sodium Produkt zur Aufbereitung von Wasser den menschlichen Gebrauch - Natriumfluorid This European Standard was approved by CEN on 12 May 2005. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for gi
10、ving 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 Central Secretariat or to any CEN member. This European Standard exists in three official ver
11、sions (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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium,
12、 Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT
13、EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2005 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12173:2005: E Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28
14、 05:49:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12173:2005 (E) 2 Contents Foreword3 Introduction.4 1 Scope 5 2 Normative references5 3 Description.5 4 Purity criteria7 Table 1 Impurities.7 Table 2 Chemical parameters .8 5 Test methods8 Table 3 Procedures for the determination of chemical par
15、ameters .9 Figure 1 Calculation of the element concentration in the test solution.11 Figure 2 Calculation of the element concentration in the blank solution11 Table 4 Standard solution .13 6 Labelling - Transportation - Storage13 Annex A (informative) General information on sodium fluoride 15 Annex
16、B (normative) General rules relating to safety16 Bibliography17 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:49:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12173:2005 (E) 3 Foreword This European Standard (EN 12173:2005) has been prepared by Technical Committee CEN/TC 164 “Water su
17、pply”, 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 2005, and conflicting national standards shall be withdrawn at the latest by December 200
18、5. This document supersedes EN 12173:1998. Significant technical differences between this edition and EN 12173:1998 are as follows: deletion of the reference to EU Directive 80/778/EEC of July, 15 1980 in order to take into account the latest Directive in force (see 1). According to the CEN/CENELEC
19、Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, N
20、etherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:49:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12173:2005 (E) 4 Introduction In respect of potential adverse effects on the quality
21、of water intended for human consumption, caused by the product covered by this European Standard: a) this European Standard 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
22、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 European Standard does not confer or imply acceptance or approval of the product in any of the Member States of the EU or E
23、FTA. The use of the product covered by this European Standard is subject to regulation or control by National Authorities. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:49:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12173:2005 (E) 5 1 Scope This European Standard is applicable to so
24、dium 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 relati
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