1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 15928:2010Fertilizers Determination ofthe fineness of grinding (dryprocedure)BS EN 15928:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementatio
2、n of EN 15928:2010.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 purport to include all the necessaryprov
3、isions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 66424 3ICS 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
4、October 2010.Amendments issued since publicationDate Text affectedBS EN 15928:2010EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15928 August 2010 ICS 65.080 English Version Fertilizers - Determination of the fineness of grinding (dry procedure) Engrais - Dtermination de la finesse de mouture
5、(procd sec) Dngemittel - Bestimmung der Mahlfeinheit (trockenes Verfahren) This European Standard was approved by CEN on 16 July 2010. 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 s
6、tandard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any ot
7、her language made by translation under the responsibility of a CEN member into its own language and notified to the CEN 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, Denmar
8、k, 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 EUROPEN DE NORMALISATI
9、ON EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15928:2010: EBS EN 15928:2010EN 15928:2010 (E) 2 Contents Page Foreword 31 Scope 42 Normati
10、ve references 43 Terms and definitions .44 Principle 45 Apparatus .46 Sampling and sample preparation .47 Procedure .58 Calculation and expression of the result 59 Test report 5Bibliography 6BS EN 15928:2010EN 15928:2010 (E) 3 Foreword This document (EN 15928:2010) has been prepared by Technical Com
11、mittee 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 February 2011, and conflicting national standards sha
12、ll be withdrawn at the latest by February 2011. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN a
13、nd/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: Austria, Belgium, Bulgaria, Croatia, Cyprus, Cz
14、ech 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 Kingdom. BS EN 15928:2010EN 15928:2010 (E) 4 1 Scope
15、 This European Standard specifies the dry procedure for the determination of the fineness of grinding, which is applicable to all EC type fertilizers in which requirements are given of fineness of grinding using 0,630 mm and 0,160 mm. 2 Normative references The following referenced documents are ind
16、ispensable 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, Fertilizers and liming materials Sampling and sample preparation Part 2: Sample
17、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 fertilizers ISO 3310-1, Test sieves Technical requirements and testing Part 1: T
18、est sieves of metal wire cloth 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 By mechanical sieve shaking, the quantities of product with a granule size greater than 0,630 mm and those with a granul
19、e size between 0,160 mm and 0,630 mm are determined, and the percentage of fineness of grinding is calculated. 5 Apparatus 5.1 Mechanical sieve shaker. 5.2 Sieves, with aperture sizes of 0,160 mm and 0,630 mm respectively of standard ranges (200 mm diameter and 50 mm high). For technical requirement
20、s and testing of sieves of metal wire cloth see ISO 3310-1. 6 Sampling and sample preparation 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. BS EN 15928:2010EN 1
21、5928:2010 (E) 5 7 Procedure Weigh, to the nearest 0,05 g, approximately 50 g of the test sample. Assemble the two sieves and the collecting container on the shaker (5.1), the sieve with the larger apertures being placed on top. Place the test portion on the top. Sieve for 10 min and remove the part
22、collected on the bottom. Start the apparatus up again and after one minute check that the amount collected on the bottom during this time is not more than 250 mg. Repeat the process (for 1 min each time) until the amount collected is less than 250 mg. Weigh the residual material on both sieves separ
23、ately. 8 Calculation and expression of the result Calculate the fineness of grinding of the sample passing the sieve with 0,630 mm aperture size, F0,630, in percent (mass fraction) according to the following formula: 2)(1630,0= MMF (1) Calculate the fineness of grinding of the sample passing the sie
24、ve with 0,160 mm aperture size, F0,160, in percent (mass fraction) according to the following formula: 2)(21160,0+= MMMF (2) where M is the mass, in grams, of the test portion; M1is the mass, in grams, of the residue on the sieve, with 0,630 mm aperture size; M2is the mass, in grams, of the residue
25、on the sieve, with 0,160 mm aperture size. Round up the results of these calculations to the nearest unit. 9 Test report The test report shall contain at least the following information: a) the test method used with a reference to this European Standard; b) all information necessary for the complete
26、 identification of the sample; c) date of sampling and sampling procedure (if known); d) date when the analysis was finished; e) the results of the determination, expressed as percentage of fineness of the fertilizer; f) all operating details not specified in this document, or regarded as optional,
27、together with details of any incidents that occurred when performing the method which might have influenced the test result(s). BS EN 15928:2010EN 15928:2010 (E) 6 Bibliography 1 Regulation (EC) No 2003/2003 of the European Parliament and of the Council of 13 October 2003 relating to fertilisers, Of
28、ficial Journal L 304, 21/11/2003, P. 0001-0194, Annex IV, method 7.1 2 EN 1482-1, Fertilizers and liming materials Sampling and sample preparation Part 1: Sampling This page deliberately left blankBSI is the independent national body responsible for preparing British Standardsand other standards-rel
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