1、December 2010 Translation by DIN-Sprachendienst.English price group 6No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC
2、S 65.080!$lj“1735971www.din.deDDIN EN 15928Fertilizers Determination of the fineness of grinding (dry procedure)English translation of DIN EN 15928:2010-12Dngemittel Bestimmung der Mahlfeinheit (trockenes Verfahren)Englische bersetzung von DIN EN 15928:2010-12Engrais Dtermination de la finesse de mo
3、uture (procd sec)Traduction anglaise de DIN EN 15928:2010-12www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.812.10 DIN EN 15928:2010-12 A comma is used as the decimal marker. National foreword This standard has been prepared by Tec
4、hnical Committee CEN/TC 260 “Fertilizers and liming materials” (Secretariat: DIN, Germany) under the mandate M/335. The responsible German body involved in its preparation was the Normenausschuss Lebensmittel und landwirtschaftliche Produkte (Food and Agricultural Products Standards Committee), Work
5、ing Committee NA 057-03-02 AA Dngemittel. The DIN Standard corresponding to the International Standard referred to in this document is as follows: ISO 3310-1 DIN ISO 3310-1 National Annex NA (informative) Bibliography DIN ISO 3310-1, Test sieves Technical requirements and testing Part 1: Test sieves
6、 of metal wire cloth 2 EUROPEAN 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 (procd sec) Dngemittel - Bestimmung der Mahlfeinheit (trock
7、enes 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 standard without any alteration. Up-to-date lists and biblio
8、graphical 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 other language made by translation under the responsibility o
9、f 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, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Icel
10、and, 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 NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue
11、 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: EEN 15928:2010 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .44 Principle 45 Apparatus .46 Sampl
12、ing and sample preparation .47 Procedure .58 Calculation and expression of the result 59 Test report 5Bibliography 6EN 15928:2010 (E) 3 Foreword This document (EN 15928:2010) has been prepared by Technical Committee CEN/TC 260 “Fertilizers and liming materials”, the secretariat of which is held by D
13、IN. 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 shall be withdrawn at the latest by February 2011. This document has been prepared under a man
14、date 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 and/or CENELEC shall not be held responsible for identifying any or all such patent rights.
15、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, Greece, Hungary, Iceland, Ireland
16、, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 15928:2010 (E) 4 1 Scope This European Standard specifies the dry procedure for the determination of the fineness of grinding, whic
17、h 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 indispensable for the application of this document. For dated references, only the edition cited applies. For
18、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 improvers Vocabulary Part 1: General
19、 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: Test sieves of metal wire cloth 3 Terms and definitions For the purposes of this document, the terms and def
20、initions 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 granule size between 0,160 mm and 0,630 mm are determined, and the percentage of fineness of grinding is calculat
21、ed. 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 requirements and testing of sieves of metal wire cloth see ISO 3310-1. 6 Sampling and sample preparation Sampling is n
22、ot 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. EN 15928:2010 (E) 5 7 Procedure Weigh, to the nearest 0,05 g, approximately 50 g of the test sample. Assemble the two sieves an
23、d 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 collected on the bottom. Start the apparatus up again and after one minute check that the amount collected on the bottom du
24、ring 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 separately. 8 Calculation and expression of the result Calculate the fineness of grinding of the sample passing the sieve with 0
25、,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 sieve with 0,160 mm aperture size, F0,160, in percent (mass fraction) according to the following formula: 2)(21160,0+= MMMF (2
26、) 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 on the sieve, with 0,160 mm aperture size. Round up the results of these calculations to the nearest unit. 9 Test report Th
27、e 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 identification of the sample; c) date of sampling and sampling procedure (if known); d) date when the analysis was finishe
28、d; 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, together with details of any incidents that occurred when performing the method which might have influenced the test result
29、(s). EN 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, Official 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
