BSENIS0 21268-4:2019 BSl Standards Publication Soil quality Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil-like materials Part 4: Influence of pH on leaching with initial acid/base addition bsi. BSENIS021268-4:2019 BRITISH STANDARD Nationalforeword ThisBritish Standard is theUK implementationof ENIS021268-4:2019 ItisidenticaltoIS021268-4:2019. The UKparticipation inits preparation was entrustedto Technical CommitteeEH/4, Soilquality. A listoforganizationsrepresented onthis committee can be obtained on requestto its secretary. This publication does not purportto include all the necessary provisions ofa contract.Users areresponsiblefor its correctapplication. @TheBritish Standards Institution2019 PublishedbyBSI Standards Limited2019 ISBN9780580518461 ICS 13.080.05 Compliance with aBritish Standard cannot conferimmunityfrom legal obligations. This British Standard was published under the authority of the StandardsPolicyand Strategy Committeeon31December2019 Amendments/corrigendaissuedsincepublication Date Text affected BSENISO21268-4:2019 EN IS0 21268-4 EUROPEANSTANDARD NORME EUROPEENNE EUROPAISCHE NORM December2019 ICS13.080.05 Supersedes CEN IS0/TS 21268-4:2009 English Version Soil quality - Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil-like materials Part 4: Influence of pH on leaching with initial acid/base addition (IS0 21268-4:2019) Qualite du sol - Modes operatoires de lixiviation en vue Bodenbeschaffenheit - Elutionsverfahren fur die d'essais chimiques et écotoxicologiques ulterieurs des anschliefende chemische und okotoxikologische sols et matériaux analogues au sol - Partie 4: Essai de Untersuchung von Boden und von Bodenmaterialien- dependance aupHavec ajout initial d'acide/debase Teil 4: Einfluss des pH-Wertes unter vorheriger (IS0 21268-4:2019) Saure/Base-Zugabe (IS0 21268-4:2019) This European Standard was approved by CEN on 6 October 2019 CEN members are bound to comply with the CEN/CENELEC Internal 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 Centre has the same 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. cen EUROPEAN COMMITTEE FOR STANDARDIZATION COMITEEUROPEENDENORMALISATION EUROPAISCHES KOMITEE FUR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels @2019CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21268-4:2019 E worldwide for CEN national Members.