BS ISO 17318:2015 BSI Standards Publication Fertilizers and soil conditioners - Determination of arsenic cadmium, chromium, Iead and mercury contents bsi. ..making excellence a habit. BS ISO 17318:2015 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 17318:2015. The UK participation in its preparation was entrusted to Technical Committee CII/37, Fertilisers and related chemicals. 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 2015.Published by BSI Standards Limited 2015 ISBN9780580762703 ICS 65.080 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June2015. Amendments issued sincepublication Date Textaffected BS ISO 17318:2015 ISO 17318 INTERNATIONAL STANDARD First edition 2015-06-01 Fertilizers and soil conditioners - Determination of arsenic, cadmium, chromium, lead and mercury contents Matieresfertilisantes-Determination deI'arsenic,ducadmium,du plomb, du chrome et du mercure dans les engrais OST ISORefegqig:2oqsbey @IS02015 BSISO17318:2015 IS017318:2015(E) COPYRIGHTPROTECTEDDOCUMENT @ISo 2015, Published in Switzerland AHbyghty rasansedlalestronicotherwipenifiedlaniclaindfiudisgppbotcatbpyingyongostingintprndtioedntntiaiaet) otiheamyisowithout prior written permission. Permission can be requested from either ISO at the address below or ISo's member body in the country of the requester. fsodecparigbh Afics 3·CP401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 [email protected] www.iso.org ii @ IS0 2015 - All rights reserved BSISO 17318:2015 IS0 17318:2015(E) Contents Page Foreword iv Scope 2 Normativereferences 1 3 Principle .1 4 Reagents 1 5 Apparatus and materials 2 6 Procedure. 2 Samplepreparation .2 6.1 6.2 Preparation of the test solution 6.3 Preparation of theworkinglatantaatcsolutionsolution. 2 6.5 Determination ofarsenic,cadmium, chromium,lead and mercury contentsby inductivelycoupled plasma ..... 6.6 Calculationemission spectroscopy (ICP-OES) 7 Precision 4 7.1 Ring test 4 7.2 Repeatability 8 Test report. AnnexA (informative)Interlaboratorytesting 6 Bibliography 30 @ IS0 2015- All rights reserved iii BS ISO 17318:2015 IS017318:2015(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards thudiegh(IsO tacmicet coahiasftadsewoekahf pmeapbeingbodylnitteresitedaihStandebjesti soowhidlycarrtiechmital committeehasbeen establishedhas therighttobe represented onthat committee.International organizations, governmental and non-governmental, in liaison with Iso, also take part in the work. Iso collaborates closely with the electrotechnical standardization.International Electrotechnical Commission (IEC) on all matters of The procedures used to develop this document and those intended for its further maintenance are editorial rules of the Iso/IEC Directives,Part2 (seewww.iso.org/directives): Rttentionrights.sawnghtahf hetpelsibilithassomsible fbe demtfg anyafosurh atenteay hgtb Detaifssubectany patent rights identified during the dev intheIntroductionand/oron the Iso list of patent declarations received (see www.iso.org/patents). Anytrade used in this constitute nameendorsement.document is information given for the convenience of users and does not sSEsadfent,(Tf,wasfthleaWimaRloin aSO'tForewordadtetheceStpplrincinlasy information. the Technical Barriers The committee responsibleforthis document is ISo/TC 134, Fertilizers and soil conditioners. @IS0 2015 -All rights reserved iv BSISO 17318:2015 INTERNATIONALSTANDARD IS017318:2015(E) Fertilizers and soil conditioners - Determination of arsenic, cadmium, chromium, lead and mercury contents 1