BS EN ISO 23470-2011 Soil quality Determination of effective cation exchange capacity (CEC) and exchangeable cations using a hexamminecobalt trichloride solution《土壤质量 用三氯六氨基钴溶液测定有效.pdf
《BS EN ISO 23470-2011 Soil quality Determination of effective cation exchange capacity (CEC) and exchangeable cations using a hexamminecobalt trichloride solution《土壤质量 用三氯六氨基钴溶液测定有效.pdf》由会员分享,可在线阅读,更多相关《BS EN ISO 23470-2011 Soil quality Determination of effective cation exchange capacity (CEC) and exchangeable cations using a hexamminecobalt trichloride solution《土壤质量 用三氯六氨基钴溶液测定有效.pdf(24页珍藏版)》请在麦多课文档分享上搜索。
1、Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 24/11/2011 06:43, Uncontrolled Copy, (c) BSIg49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58e
2、xchange capacity (CEC) and exchangeable cations using a hexamminecobalt trichloride solutionICS 13.080.20Soil quality Determination of effective cation BRITISH STANDARDBS EN ISO23470:2011National forewordThis British Standard is the UK implementation of EN ISO 23470:2011. It is identical to ISO 2347
3、0:2007. It supersedes BS ISO 23470:2007, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee EH/4, Soil quality.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include a
4、ll the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.BS EN ISO 23470:2011This British Standard was published under the authority of the Standards Policy and Strategy Committee on
5、29 June 2007 BSI 2011Amendments/corrigenda issued since publicationDate Comments 31 August 2011 This corrigendum renumbers BS ISO 23470:2007 as BS EN ISO 23470:2011ISBN 978 0 580 73161 7Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 24/11/2011 06:43, Uncontrolled Copy, (c) BSIEUROPEAN STANDA
6、RD NORME EUROPENNE EUROPISCHE NORM EN ISO 23470 June 2011 ICS 13.080.20 English Version Soil quality - Determination of effective cation exchange capacity (CEC) and exchangeable cations using a hexamminecobalt trichloride solution (ISO 23470:2007) Qualit du sol - Dtermination de la capacit dchange c
7、ationique (CEC) effective et des cations changeables laide dune solution de trichlorure de cobaltihexammine (ISO 23470:2007) Bodenbeschaffenheit - Bestimmung der effektiven Kationenaustauschkapazitt (KAK) und der austauschbaren Kationen mit Hexammin-cobalt-trichlorid-Lsung (ISO 23470:2007) This Euro
8、pean Standard was approved by CEN on 10 June 2011. 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 conc
9、erning 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 under the responsibility of a CEN member in
10、to its own language and notified to the CEN-CENELEC Management 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, Irel
11、and, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 1
12、7, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 23470:2011: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 24/11/2011 06:43, Uncontrolled Copy, (c) BSI3 Foreword The text of ISO 23470:2007 has b
13、een prepared by Technical Committee ISO/TC 190 “Soil quality” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 23470:2011 by Technical Committee CEN/TC 345 “Characterization of soils” the secretariat of which is held by NEN. This European Standard shall b
14、e given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2011, and conflicting national standards shall be withdrawn at the latest by December 2011. Attention is drawn to the possibility that some of the elements of this docum
15、ent may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: A
16、ustria, 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 and the United Kingdo
17、m. Endorsement notice The text of ISO 23470:2007 has been approved by CEN as a EN ISO 23470:2011 without any modification. BS EN ISO 23470:2011EN ISO 23470:2011 (E)Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 24/11/2011 06:43, Uncontrolled Copy, (c) BSIiiiContents Page Foreword iv 1 Scope
18、. 1 2 Normative references . 1 3 Principle. 1 4 Reagents 2 5 Apparatus 2 6 Procedure 3 7 Test report . 8 8 Validation. 8 Annex A (informative) Comparison of different methods for the determination of effective CEC 9 Annex B (informative) Results of the interlaboratory comparison . 14 Bibliography .
19、16 BS EN ISO 23470:2011EN ISO 23470:2011 (E)Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 24/11/2011 06:43, Uncontrolled Copy, (c) BSIiv Foreword IISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of
20、 preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental
21、, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main
22、task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Atten
23、tion is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 23470 was prepared by Technical Committee ISO/TC 190, Soil quality, Subcommittee SC 3, Chemical method
24、s and soil characteristics. BS EN ISO 23470:2011EN ISO 23470:2011 (E)Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 24/11/2011 06:43, Uncontrolled Copy, (c) BSI1Soil quality Determination of effective cation exchange capacity (CEC) and exchangeable cations using a hexamminecobalt trichloride
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