【正文】 may be used without restriction in any of the Member state of the EU or EFTA。 2020 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1717:2020 E Page 2 EN 1717:2020 169。 I S C H ES KOM I T E E F 220。 EUR O P 201。ckflie223。rales des dispositifs de protection contre la pollution par retour Schutz des Trinkwassers vor Verunreinigungen in TrinkwasserInstallationen und allgemeine Anforderungen an Sicherungseinrichtungen zur Verh252。r ieurs et exigences g233。eau potable dans les r233。ISCHE NORM EN 1717 November 2020 ICS 。 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 wi th a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document prises a front cover, an inside front cover, the EN title page, pages 2 to 50, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. This British Standard, having been prepared under the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and es into effect on 15 January 2020 BSI 012020 ISBN 0 580 34930 6 Amendments issued since publication Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue May 08 10:39:47 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROP201。, or by using the 170。 monitor related international and European developments and promulgate them in the UK. It should be noted that BS EN 1717:2020 does not align in its entirety with the United Kingdom water regulatory requirements, which are mandatory for all water installations within premises in England, Wales, Scotland and Northern Ireland where water is supplied from a public source for domestic purposes. A list of anizations represented on this submittee can be obtained on request to its secretary. Crossreferences 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 170。 present to the responsible European mittee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed。 aid enquirers to understand the text。| | | | | | | | | 1717:2020 | Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue May 08 10:39:47 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BRITISH STANDARD Protection against pollution of potable water in water installations and general requirements of devices to prevent pollution by backflow The European Standard EN 1717:2020 has the status of a British Standard ICS 。 | BS EN | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Amd. No. Date Comments Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue May 08 10:39:47 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 1717:2020 National foreword This British Standard is the official English language version of EN 1717:2020. The UK participation in its preparation was entrusted by Technical Committee B/504, Water supply, to Submittee B/504/4, Backflow prevention fittings, which has the responsibility to: 208。 208。 208。International Standards Correspondence Index186。Find186。ENNE EUROP196。 English version Protection against pollution of potable water in water installations and general requirements of devices to prevent pollution by backflow Protection contre la pollution de l39。seaux int233。n233。tung von Trinkwasserverunreinigungen durch R252。en This European Standard was approved by CEN on 20 January 2020. CEN members are bound to ply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Uptodate lists and bibliographical references concerning such national standards may be obtained on application to the 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZAT