1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 15958:2011Fertilizers Extraction ofwater soluble phosphorusBS EN 15958:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 15958:2011
2、. Itsupersedes DD CEN/TS 15958:2009 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee CII/37, Fertilisers and related chemicals.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purp
3、ort to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 74442 6ICS 65.080Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards
4、Policy and Strategy Committee on 30 November 2011.Amendments issued since publicationDate Text affectedBS EN 15958:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15958 November 2011 ICS 65.080 Supersedes CEN/TS 15958:2009English Version Fertilizers - Extraction of water soluble phosphorus
5、Engrais - Extraction du phosphore soluble dans leau Dngemittel - Extraktion des in Wasser lslichen Phosphors This European Standard was approved by CEN on 15 October 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Europea
6、n 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 (
7、English, French, German). A version in any other language made by translation under the responsibility of a CEN member into 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, Belgi
8、um, 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 United Kingdom. EUROPEAN COMMI
9、TTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, 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 15958:2011: EBS EN 15958:2011EN 15958:
10、2011 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .44 Principle 45 Sampling .46 Reagents .47 Apparatus .48 Procedure .58.1 Test portion 58.2 Extraction .59 Test report 5Bibliography 6BS EN 15958:2011EN 15958:2011 (E) 3 Foreword This document (EN 15958:2011)
11、has been prepared by Technical Committee CEN/TC 260 “Fertilizers and liming materials”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2012, and confl
12、icting national standards shall be withdrawn at the latest by May 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document
13、supersedes CEN/TS 15958:2009. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. The following has been added to the former edition of the European Standard: a) the CEN Technical Specification has been adopted as a Europea
14、n Standard; b) editorial revision. 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 Republic, Denmark, Estonia, Finland, France, Germany
15、, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 15958:2011EN 15958:2011 (E) 4 1 Scope This European Standard specifies a method for the extra
16、ction of water soluble phosphorus. The method is applicable to all fertilizers, including compound fertilizers, where water soluble phosphorus is to be determined. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references,
17、only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1482-2, Fertilizers and liming materials Sampling and sample preparation Part 2: Sample preparation EN 12944-1:1999, Fertilizers and liming materials and soil
18、improvers Vocabulary Part 1: General terms EN 12944-2:1999, Fertilizers and liming materials and soil improvers Vocabulary Part 2: Terms relating to fertilizers 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 12944-1:1999 and EN 12944-2:1999 apply. 4
19、Principle Extraction in water by shaking under the specified conditions. 5 Sampling Sampling is not part of the method specified in this document. A recommended sampling method is given in EN 1482-1. Sample preparation shall be carried out in accordance with EN 1482-2. Grinding of the laboratory sam
20、ple is recommended for homogeneity reasons. 6 Reagents 6.1 Water, distilled or demineralized. 7 Apparatus 7.1 500 ml graduated flask, e.g. Stohmann. 7.2 Rotary shaker, 35 to 40 turns per minute. 7.3 Dry pleated filter, phosphate free. BS EN 15958:2011EN 15958:2011 (E) 5 8 Procedure 8.1 Test portion
21、Weigh, to the nearest 0,001 g, 5 g of the laboratory sample and place it in a graduated flask (7.1). 8.2 Extraction Add to the test portion in the flask 450 ml of water (6.1), the temperature of which shall be between 20 C and 25 C. Shake in the rotary shaker (7.2) for 30 min. Then make up to the ma
22、rk with water, mix thoroughly by shaking and filter through a dry pleated filter (7.3). 9 Test report The test report shall contain at least the following information: a) all information necessary for the complete identification of the sample; b) test method used with reference to this document; c)
23、test results obtained; d) date of sampling and sampling procedure (if known); e) date when the analysis was finished; f) whether the requirement of the repeatability limit has been fulfilled; g) all operating details not specified in this document, or regarded as optional, together with details of a
24、ny incidents occurred when performing the method, which might have influenced the test result(s). BS EN 15958:2011EN 15958:2011 (E) 6 Bibliography 1 EN 1482-1, Fertilizers and liming materials Sampling and sample preparation Part 1: Sampling 2 Regulation (EC) No 2003/2003 of the European Parliament
25、and of the Council of 13 October 2003 relating to fertilisers, Official Journal L 304, 21.11.2003, p. 1-194, Annex IV, Method 3.1.6 This page deliberately left blankBSI is the independent national body responsible for preparing British Standardsand other standards-related publications, information a
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