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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 12911:1999 The Euro
2、pean Standard EN 12911:1999 has the status of a British Standard ICS 71.100.80 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Products used for treatment of water intended for human consumption Manganese greensand Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 05:36:1
3、1 GMT+00:00 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 November 1999 BSI 11-1999 ISBN 0 580 35449 0 BS E
4、N 12911:1999 Amendments issued since publication Amd. No.DateComments National foreword This British Standard is the English language version of EN 12911:1999. The UK participation in its preparation was entrusted to Technical Committee CII/59, Chemicals for drinking water treatment, which has the r
5、esponsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of org
6、anizations represented on this committee can be obtained on request to its secretary. Additional information Article 8 of the Council of the European Community Directive 80/778/EEC relating to the quality of water intended for human consumption requires Member States to ensure that substances used i
7、n the preparation of drinking water do not cause any contravention of the maximum admissible concentrations prescribed in annex 1 to the Directive. This requirement is given effect in England and Wales by regulation 25 of the Water Supply (Water Quality) Regulations 1989 (similar provisions apply in
8、 Scotland and Northern Ireland). Regulation 25 makes provision for attaching conditions of use to chemicals and filter media which are authorized for use in public water supplies. Details of conditions of use are contained in the Secretary of States List of Approved Products published by the Drinkin
9、g Water Inspectorate, Floor 2/A1, Ashdown House, 123 Victoria Street, London SW1E 6DE. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled International Stand
10、ards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard
11、does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 17 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Licensed Copy:
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