BS EN 12255-12-2003 British European Standard英国标准欧盟标准英文版全文电子版下载.docx

BRITISH STANDARD BSEN 1225512:2003 Wastewater treatment plants — Part 12: Control and automation The European Standard EN 12255-12:2003 has the status of a British Standard ICS 13.060.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards co § 匚 _c CO ■S c ?2 CO I ui T— o OJ T— o if) CD 0 o o c q 0 National foreword This British Standard is the official English language version of EN 12255-12:2003. The UK participation in its preparation was entrusted to Technical Committee B/505, Wastewater engineering, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/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 organizations represented on this committee can be obtained on request to its secretary. 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 uSearch,5 facility of the BSI Electronic Catalogue or 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. (f) Z) 工 This British Standard, was published under the authority of the Standards Policy and Strategy Committee on 26 September 2003 ① 3 TO C/) ① Q) O o ? BSI 26 September 2003 c/) 匚 ① O ISBN 0 580 42698 X Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 15 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication A