1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 13039:2011Soil improvers and growingmedia Determination oforganic matter content and ashBS EN 13039:2011 BRITISH STANDARDNational forewordThis British Standard is the UK im
2、plementation of EN 13039:2011. Itsupersedes BS EN 13039:2000 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee AW/20, Top soil and other growing media.A list of organizations represented on this committee can beobtained on request to its secretary.This pu
3、blication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 68881 2ICS 65.080Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the aut
4、hority of theStandards Policy and Strategy Committee on 30 November 2011.Amendments issued since publicationDate Text affectedBS EN 13039:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13039 November 2011 ICS 65.080 Supersedes EN 13039:1999English Version Soil improvers and growing media -
5、 Determination of organic matter content and ash Amendements du sol et supports de culture - Dtermination de la matire organique et des cendres Bodenverbesserungsmittel und Kultursubstrate - Bestimmung des Gehaltes an organischer Substanz und Asche This European Standard was approved by CEN on 17 Se
6、ptember 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 concerning such national standards may be
7、 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 into its own language and notified to t
8、he 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, Ireland, Italy, Latvia, Lithuania, Luxemb
9、ourg, 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 17, B-1000 Brussels 2011 CEN All right
10、s of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13039:2011: EBS EN 13039:2011EN 13039:2011 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .44 Principle 45 Apparatus .46 Procedure .56.1 Test sample 56.2 Pr
11、eparation of the basin 56.3 Determination .57 Calculation and expression of results .58 Precision .69 Test report 6Annex A (informative) Results of an interlaboratory trial to determine the organic matter 7BS EN 13039:2011EN 13039:2011 (E) 3 Foreword This document (EN 13039:2011) has been prepared b
12、y Technical Committee CEN/TC 223 “Soil improvers and growing media”, the secretariat of which is held by ASI. 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 conflicting national sta
13、ndards 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 supersedes EN 13039
14、:1999. The main change to the previous edition is in the scope. 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, Esto
15、nia, 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 13039:2011EN 13039:2011 (E) 4 1 Scope This European Standard spe
16、cifies a routine method for determining the organic matter and the ash content of soil improvers and growing media. This method is not applicable to liming materials and preformed materials such as mineral wool slabs and foam slabs. The requirements of the standard may differ from the national legal
17、 requirements for the declaration of the products concerned. 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 (
18、including any amendments) applies. EN 12579:1999, Soil improvers and growing media Sampling EN 13040:2007, Soil improvers and growing media Sample preparation for chemical and physical tests, determination of dry matter content, moisture content and laboratory compacted bulk density ISO 5725 (all pa
19、rts), Accuracy (truenesss and precision) of measurement methods and results 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 12579:1999 and the following apply. 3.1 organic matter carbon fraction of a sample which is free from water and inorganic subst
20、ances The organic matter for the purposes of this standard is taken as equal to loss on dry incineration at (450 25) C. 3.2 ash residual mineral matter remaining after the destruction of organic matter/material by controlled burning 4 Principle The test portion is dried at (103 2) C, then ashed at (
21、450 25) C. The ash is determined as the residue on ignition. The organic matter is taken to be the loss of mass on ignition. Both are expressed as a percentage by mass of the dried sample. 5 Apparatus 5.1 Drying oven, capable of maintaining a temperature of (103 2) C. 5.2 Electric muffle furnace, ca
22、pable of maintaining temperatures of (450 25) C and (550 25) C. BS EN 13039:2011EN 13039:2011 (E) 5 5.3 Basin, made from fused silica or quartz, of shallow form with a flat bottom, capable of holding a sample of 5 g. Typical dimensions are 70 mm width and 20 mm height. 5.4 Desiccator containing an a
23、ctive drying agent. 5.5 Analytical balance with a scale interval 0,001 g. 6 Procedure 6.1 Test sample Prepare the test sample in accordance with Clause 9 of EN 13040:2007. 6.2 Preparation of the basin Heat the basin (see 5.3) for 16 h in the muffle furnace (see 5.2) at (550 25) C. Cool in the desicc
24、ator (see 5.4). After cooling, weigh to the nearest 0,001 g. Note the mass of the basin m0. NOTE The basin is heated to (550 25) C to ensure that all volatile material is removed prior to the test. 6.3 Determination Spread evenly over the surface of the basin (see 5.3) approximately 5 g of the test
25、sample (see 6.1) and dry in the oven (see 5.1) at a temperature of (103 2) C for 4 h. Allow the basin and contents to cool to room temperature in the desiccator (see 5.4) and weigh to the nearest 0,001 g. Place the basin and contents in the oven (see 5.1) maintained at (103 2) C for a further 1 h. A
26、llow the basin and contents to cool to room temperature in the desiccator (see 5.4) and weigh to the nearest 0,001 g. Repeat the operations of heating, cooling and weighing until the difference between two successive weightings is less than 0,01 g. Note the mass of the basin and dried sample m1. Pla
27、ce the basin and contents in the cool muffle furnace (see 5.2) and raise the temperature over approximately 1 h to (450 25) C. Maintain this temperature for 6 h. Allow the basin and contents to cool to room temperature in the desiccator (see 5.4) and weigh to the nearest 0,001 g. Place the basin and
28、 contents into the muffle furnace (see 5.2) maintained at (450 25) C for a further 1 h. Allow the basin and contents to cool to room temperature in the desiccator (see 5.4) and weigh to the nearest 0,001 g. Repeat the operations of heating, cooling and weighing until the difference between two succe
29、ssive weightings is less than 0,01 g. Note the mass of the basin and sample after ignition m2. 7 Calculation and expression of results The organic matter content, expressed as a percentage by mass of the dried sample, is given by the following equation: 1000121om=mmmmW (1) The ash content, expressed
30、 as a percentage by mass of the dried sample, is given by the following equation: BS EN 13039:2011EN 13039:2011 (E) 6 1000102ash=mmmmW (2) where Wom is the organic matter content, in % m/m; Washis the ash content, in % m/m;m0is the mass of the basin, in g; m1is the mass of the basin and the sample a
31、fter drying in grams; m2is the mass of the basin and the sample after ignition in grams. 8 Precision The repeatability and reproducibility of the organic matter (ash) of the sample measured in 2 separately prepared samples should be in accordance with Table A.1. A summary of the results of an interl
32、aboratory trial to determine the precision of the method in accordance with ISO 5725 is given in Annex A. The values derived from the interlaboratory trial may not be applicable to concentrations and matrices other than those given. 9 Test report The test report shall include the following: a) a com
33、plete identification of the sample; b) a reference to this European Standard; c) the results expressed in accordance with Clause 7; d) any unusual features noticed during the determination; e) details of any operation not specified in the European Standard or regarded as optional, as well as any fac
34、tor which may have affected the results. BS EN 13039:2011EN 13039:2011 (E) 7 Annex A (informative) Results of an interlaboratory trial to determine the organic matter An interlaboratory trial was organized in 1995 under the auspices of the European Committee for Standardization, to test the procedur
35、es specified in this European Standard. In this trial the number of laboratories given in Table A.1 determined the organic matter in three types of samples. Table A.1 Summary of the results of the interlaboratory trial for the determination of organic matter Sample Unfertilized peat perlite Composte
36、d coarse bark Sewage sludge composted with straw Number of laboratories retained after eliminating outliers 19 18 19 Number of outliers (laboratories) 0 1 0 Mean Value (m/m %) 79,86 76,03 44,34 Repeatability standard deviation, sr(% m/m) 1,00 1,29 1,20 Repeatability relative standard deviation (% m/
37、m) 1,25 1,70 2,71 Repeatability limit, r = 2,8 sr(% m/m) 2,8 3,60 3,37 Reproducibility standard deviation, sR(% m/m) 1,51 2,33 2,26 Reproducibility relative standard deviation (%) 1,89 3,06 5,10 Reproducibility limit, R = 2,8 sR(% m/m) 4,23 6,51 6,33 This page deliberately left blankThis page delibe
38、rately left blankBSI is the independent national body responsible for preparing British Standardsand other standards-related publications, information and services. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter.British Standards In
39、stitution (BSI)raising standards worldwideBSI Group Headquarters389 Chiswick High Road London W4 4AL UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 Standards are updated by amendment or revision. Users of British Stan-dards should make sure that they possess the latest amendments or editions.It is the
40、 constant aim of BSI to improve the quality of our products and serv-ices. We would be grateful if anyone finding an inaccuracy or ambiguity whileusing this British Standard would inform the Secretary of the technical com-mittee responsible, the identity of which can be found on the inside frontcove
41、r.Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001BSI offers Members an individual updating service called PLUS which ensuresthat subscribers automatically receive the latest editions of standards.Tel: +44 (0)20 8996 7669 Fax: +44 (0)20 8996 7001Email: Buying standardsYou may buy PDF and hard copy
42、versions of standards directly using acredit card from the BSI Shop on the website addition all orders for BSI, international and foreign standards publicationscan be addressed to BSI Customer Services.Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001Email: In response to orders for international s
43、tandards, it is BSI policy tosupply the BSI implementation of those that have been publishedas British Standards, unless otherwise requested.Information on standardsBSI provides a wide range of information on national, Europeanand international standards through its Knowledge Centre.Tel: +44 (0)20 8
44、996 7004 Fax: +44 (0)20 8996 7005Email: Various BSI electronic information services are also available whichgive details on all its products and services. Tel: +44 (0)20 8996 7111 Fax: +44 (0)20 8996 7048Email: BSI Subscribing Members are kept up to date with standardsdevelopments and receive substa
45、ntial discounts on the purchase priceof standards. For details of these and other benefits contact Membership Ad-ministration. Tel: +44 (0)20 8996 7002 Fax: +44 (0)20 8996 7001 Email: Information regarding online access to British Standards via BritishStandards Online can be found at information a
46、bout BSI is available on the BSI website at www.bsi- subsists in all BSI publications. BSI also holds the copyright,in the UK, of the publications of the international standardization bodies. Ex-cept as permitted under the Copyright, Designs and Patents Act 1988 no ex-tract may be reproduced, stored
47、 in a retrieval system or transmitted in anyform or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude the freeuse, in the course of implementing the standard of necessary details such assymbols, and size, type or grade designations. If these details are to be usedfor any other purpose than implementation then the prior written permissionof BSI must be obtained. Details and advice can be obtained from the Copy-right & Licensing Manager.Tel: +44 (0)20 8996 7070Email:
