BS-EN-12123-2005.pdf
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1、BRITISH STANDARD BS EN 12123:2005 Chemicals used for treatment of water intended for human consumption Ammonium sulfate The European Standard EN 12123:2005 has the status of a British Standard ICS 71.100.80 ? Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:48:57 GMT+00:00 2006, Uncontrolle
2、d Copy, (c) BSI BS EN 12123:2005 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 47488 7 National foreword This British Standard is the official English language version of EN 12123:2005. It supe
3、rsedes BS EN 12123:1999 which is withdrawn The UK participation in its preparation was entrusted to Technical Committee CII/59, Chemicals for drinking water treatment, which has the responsibility to: A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.
4、Cross-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, a
7、n inside front cover, the EN title page, pages 2 to 19, 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 05:48:57 GMT+00:
8、00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12123 June 2005 ICS 71.100.80 Supersedes EN 12123:1998 English version Chemicals used for treatment of water intended for human consumption - Ammonium sulfate Produits chimiques utiliss pour le traitement de lea
9、u destine la consommation humaine - Sulfate dammonium Produkt zur Aufbereitung von Wasser fr den menschlichen Gebrauch - Ammoniumsulfat 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
10、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 Central Secretariat or to any CEN member. This European Standard exists in three offici
11、al 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Be
12、lgium, 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
13、COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12123:2005: E Licensed Copy: sheffieldun sheffieldun, na, Sat
14、 Oct 28 05:48:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12123:2005 (E) 2 Contents Page Foreword3 Introduction.4 1 Scope 5 2 Normative references5 3 Description.5 4 Purity criteria7 Table 1 - Impurities.9 Table 2 Chemical parameters.9 5 Test methods9 Table 3 - Procedures for the determination
15、of chemical parameters11 Figure 1 Calculation of the element concentration in the test solution.13 Figure 2 Calculation of the element concentration in the blank solution14 Table 4 Standard solution .15 6 Labelling Transportation Storage16 Annex A (informative) General information on ammonium sulfat
16、e.17 Bibliography19 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:48:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12123:2005 (E) 3 Foreword This European Standard (EN 12123:2005) has been prepared by Technical Committee CEN/TC 164 “Water supply”, the secretariat of which is held by A
17、FNOR. 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 2005. This document supersedes EN 12123:1998. S
18、ignificant technical differences between this edition and EN 12123:1998 are as follows: deletion of the reference to EU Directive 80/778/EEC of 15 July 1980 in order to take account of the latest Directive in force(see 1). According to the CEN/CENELEC Internal Regulations, the national standards org
19、anizations 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, Netherlands, Norway, Poland, Portugal, Slovakia,
20、Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:48:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12123:2005 (E) 4 Introduction In respect of potential adverse effects on the quality of water intended for human consumption, caused
21、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 adoption of verifiable European criteria, existi
22、ng 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 EFTA. The use of the product covered by this Euro
23、pean Standard is subject to regulation or control by National Authorities. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:48:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12123:2005 (E) 5 1 Scope This European Standard is applicable to ammonium sulfate used for treatment of water inten
24、ded for human consumption. It describes the characteristics and specifies the requirements of ammonium sulfate and refers to the corresponding analytical methods. It gives information on its use in water treatment. 2 Normative references The following referenced documents are indispensable for the a
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