BS EN ISO 8692:2012 BSl Standards Publication Water quality Fresh water algal growth inhibition test with unicellular green algae (ISO 8692:2012) bsi. ..making excellence a habit: BS EN ISO 8692:2012 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN ISO 8692:2012. It supersedes BS EN ISO 8692:2004, which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee EH/3/5, Biological Methods. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. @The British Standards Institution 2012 Published by BSI Standards Limited 2012 ISBN9780580685323 ICS 13.060.70 Compliancewitha BritishStandard cannot conferimmunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2012. Amendments issued since publication Date Text affected EN ISO 8692 EUROPEANSTANDARD NORMEEUROPEENNE EUROPAISCHENORM February 2012 ICS 13.060.70 Supersedes ENISO 8692:2004 English Version Water quality - Fresh water algal growth inhibition test with unicellular green algae (IsO 8692:2012) Qualite de I'eau - Essai d'inhibition de la croissance des Wasserbeschaffenheit - Surswasseralgen- algues d'eau douce avec des algues vertes unicellulaires Wachstumshemmtest mit einzelligen Grunalgen (ISO (ISO 8692:2012) 8692:2012) This European Standard was approved by CEN on 14 February 2012. CEN members are bound to comply with the CEN/CENELEC Intermal Regulations which stipulate the conditions 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 CEN-CENELEC 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 status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. cen EUROPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPAISCHES KOMITEE FUR NORMUNG ManagementCentre:AvenueMarnix17,B-100oBrussels 2012CEN All rights of exploitation in any form and by any means reserved Ref.No.ENISO 8692:2012:E worldwide for CEN national Members. ENISO8692:2012(E) BSENISO8692:2012 Foreword This document (EN ISO8692:2012)has been prepared by Technical Committee ISO/TC 147"Water quality" in collaboration with Technical Committee CEN/TC 230 "Water analysis” the secretariat of which is held by DIN. the latest by August 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent This document supersedes EN IsO8692:2004. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Lithuania, Luxembourg, Malta, Netherlands, Norway,Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsementnotice BSENISO8692:2012 ISO 8692:2012(E) Contents Page Foreword 1 Scope 2 Normative references. 3 Terms and definitions. 4 Principle. 5 Reagentsandmedia 6 Apparatus. 7 Procedure.. 7.1 Preparation of growth medium 7.2 Preparationofpre-cultureandinoculum 7.3 Choiceoftestsampleconcentrations 7.4 Preparationoftestsampleand stocksolutions 7.5 Preparationoftestand control batches 7.6 Incubation. 7.7 Measur