DIN EN 12255-13-2003 Wastewater treatment plants - Part 13 Chemical treatment Treatment of wastewater by precipitation flocculation German version EN 12255-13 2002《废水处理厂 第13部分 化学处理.pdf

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1、ICS 13.060.30Klranlagen Teil 13: Chemische Behandlung Abwasserbehandlung durch Fllung/FlockungEuropean Standard EN 12255-13 : 2002 has the status of a DIN Standard.A comma is used as the decimal marker.National forewordThis standard has been prepared by CEN/TC 165 Waste water engineering (Secretaria

2、t: Germany).The responsible German body involved in its preparation was the Normenausschuss Wasserwesen (WaterPractice Standards Committee), Technical Committee Abwasserbehandlungsanlagen.This European Standard is part of a series of standards dealing with wastewater treatment plants within thescope

3、 of the EC Directive on the approximation of the laws, regulations and administrative provisions of theMember States relating to construction products.It should be noted that not all of the DIN Standards dealing with wastewater treatment plants need yet bewithdrawn. This is in keeping with resolutio

4、n 152/98 taken by CEN/BT, which states that where packagesof EN Standards are concerned, it shall be permitted for the relevant national standards (DIN 19569 series)to remain valid for longer periods than usual, until the EN package has been published in its entirety.In the case at hand, all of the

5、relevant EN Standards have not yet been published, and CEN/TC has thereforedecided to extend the period of validity for relevant national standards until the end of 2002.It should be noted that the scope of the EN 12255 series is not identical with that of the DIN 19569 series.Ref. No. DIN EN 12255-

6、13 : 2003-04English price group 10 Sales No. 111008.03DEUTSCHE NORM April 2003EN 12255-13Continued overleaf.EN comprises 14 pages. No part of this standard may be reproduced without the prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has t

7、he exclusive right of sale for German Standards (DIN-Normen).Wastewater treatment plantsPart 13: Chemical treatment Treatment of wastewater byprecipitation/flocculationEnglish version of DIN EN 12255-13English versionICS 13.060.30Descriptors:Wastewater treatment plantsPart 13: Chemical treatment Tre

8、atment of wastewater byprecipitation/flocculation 2002. CEN All rights of exploitation in any form and by any meansreserved worldwide for CEN national members.Ref. No. EN 122255-13 : 2002 EKlranlagen Teil 13: ChemischeBehandlung Abwasserbehandlungdurch Fllung/FlockungThis European Standard was appro

9、ved by CEN on 2002-11-01.CEN members are bound to comply with the CEN/CENELEC Internal Regulationswhich stipulate the conditions for giving this European Standard the status of anational standard without any alteration.Up-to-date lists and bibliographical references concerning such national stand-ar

10、ds may be obtained on application to the Management Centre or to anyCEN member.The European Standards exist in three official versions (English, French, German).A version in any other language made by translation under the responsibility of aCEN member into its own language and notified to the Manag

11、ement Centre hasthe same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, the CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,Luxembourg, Malta, the Netherlands, Norway, Portugal, Spain, Sweden,Switzerland, and the U

12、nited Kingdom.EN 12255-13December 2002Management Centre: rue de Stassart 36, B-1050 BrusselsEuropean Committee for StandardizationComit Europen de NormalisationEuropisches Komitee fr Normung|Stations dpuration Partie 13: Traite-ment chimique Traitement des eauxuses par prcipitation/flocculationPage

13、2EN 12255-13 : 2002PagePage 3EN 12255-13 : 2002Page 4EN 12255-13 : 2002Page 5EN 12255-13 : 2002Page 6EN 12255-13 : 2002Page 7EN 12255-13 : 2002Page 8EN 12255-13 : 2002Page 9EN 12255-13 : 2002Page 10EN 12255-13 : 2002Page 11EN 12255-13 : 2002Page 12EN 12255-13 : 2002Page 13EN 12255-13 : 2002Page 14EN 12255-13 : 2002

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