EN 15961-2011 9375 Fertilizers - Extraction of water-soluble calcium magnesium sodium and sulfur in the form of sulfates《肥料 提取水溶性钙 镁 钠和硫以硫酸盐的形式》.pdf

《EN 15961-2011 9375 Fertilizers - Extraction of water-soluble calcium magnesium sodium and sulfur in the form of sulfates《肥料 提取水溶性钙 镁 钠和硫以硫酸盐的形式》.pdf》由会员分享，可在线阅读，更多相关《EN 15961-2011 9375 Fertilizers - Extraction of water-soluble calcium magnesium sodium and sulfur in the form of sulfates《肥料 提取水溶性钙 镁 钠和硫以硫酸盐的形式》.pdf（10页珍藏版）》请在麦多课文档分享上搜索。

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 15961:2011Fertilizers Extractionof water-soluble calcium,magnesium, sodium and sulfurin the form of sulfatesCopyright European Committee for Standardization Provided by IHS

2、 under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 15961:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 15961:2011. Itsupersedes DD CEN/TS 15961:2009 which is withdrawn.The UK participation in it

3、s 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 purport to include all the necessaryprovisions of a contract. Users are responsible f

4、or its correctapplication. BSI 2011ISBN 978 0 580 74441 9ICS 65.080Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 December 2011.Amendments issued since publica

5、tionDate Text affectedCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 15961:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15961 November 2011 ICS 65.080 Supersed

6、es CEN/TS 15961:2009English Version Fertilizers - Extraction of water-soluble calcium, magnesium, sodium and sulfur in the form of sulfates Engrais - Extraction des formes solubles dans leau du calcium, du magnsium, du sodium et du soufre sous forme de sulfate Dngemittel - Extraktion von wasserlslic

7、hem Calcium, Magnesium und Natrium sowie von Schwefel in Form von Sulfat 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 European Standard the status of a national

8、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

9、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, Belgium, Bulgaria, Croatia, Cyprus, Czech

10、 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 COMMITTEE FOR STANDARDIZATION COMIT EUROP

11、EN 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 15961:2011: ECopyright European Committee for Standardization Provided by

12、IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 15961:2011EN 15961:2011 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .44 Principle 45 Sampling .46 Reagents .47 Apparatus .58 Procedure .58.1 T

13、est portion 58.2 Preparation of the solution .59 Test report 5Bibliography 6Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 15961:2011EN 15961:2011 (E) 3 Foreword This docu

14、ment (EN 15961:2011) 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 b

15、y May 2012, and conflicting 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 r

16、ights. This document supersedes CEN/TS 15961:2009. 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

17、 adopted as a European 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, Fin

18、land, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Copyright European Committee for Standardization Provided by IHS under license

19、 with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 15961:2011EN 15961:2011 (E) 4 1 Scope This European Standard specifies a method for the extraction of water-soluble calcium, magnesium, sodium and sulfur (in the form of sulfates), so that the same extr

20、act may be used for the determination of each nutrient required. The method is solely applicable to fertilizers listed in Regulation (EC) 2003/2003, Annex I (see 2), for which a declaration of the water-soluble calcium, magnesium, sodium, and sulfur (in the form of sulfates) is provided for in this

21、Regulation. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1482-2, Fer

22、tilizers and liming materials Sampling and sample preparation Part 2: Sample preparation EN 12944-1:1999, Fertilizers and liming materials and soil improvers Vocabulary Part 1: General terms EN 12944-2:1999, Fertilizers and liming materials and soil improvers Vocabulary Part 2: Terms relating to fer

23、tilizers 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 Principle Extraction of the calcium, magnesium, sodium, and sulfur (present in the form of sulfates) in the fertilizer by boiling in water under the spe

24、cified 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 sample is recommended for homogeneity reasons. 6 Reagents

25、 6.1 Water, distilled or demineralized. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 15961:2011EN 15961:2011 (E) 5 7 Apparatus 7.1 Standard laboratory equipment. 7.2 Ele

26、ctric hot plate, with adjustable temperature. 7.3 Beaker, capacity 600 ml. 7.4 Graduated flask, capacity 500 ml. 7.5 Dry filter. 8 Procedure 8.1 Test portion Where fertilizers contain no sulfur or where they contain, at the same time, no more than 3 % of sulfur (S) i.e. 7,5 % SO3, and no more than 4

27、 % of calcium (Ca) i.e. 5,6 % CaO, weigh 5 g of the test sample to the nearest 1 mg. Place it in the beaker (7.3). Where fertilizers contain more than 3 % of sulfur (S) and more than 4 % of calcium (Ca), weigh 1 g of the test sample to the nearest 1 mg. Place it in the beaker (7.3). 8.2 Preparation

28、of the solution Add approximately 400 ml of water (6.1) to the test portion (8.1) and boil for 30 min. Allow to cool, stirring occasionally. Decant quantitatively into a graduated flask (7.4). Make up to volume with water (6.1), and mix. Pass through a filter (7.5) into a dry container. Discard the

29、initial portions of the filtrate. The filtrate shall be completely transparent. Stopper if the filtrate is not used immediately. 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

30、used with reference to this document; c) 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 regarde

31、d as optional, together with details of any incidents occurred when performing the method, which might have influenced the test result(s). Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from

32、 IHS-,-,-BS EN 15961:2011EN 15961:2011 (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 and of the Council of 13 October 2003 relating to fertilisers, Official Journal L 304, 21

33、.11.2003, p. 1-194, Annex I and Annex IV, Method 8.3 Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-This page deliberately left blankCopyright European Committee for Standardiza

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