DIN EN 13039-2012 Soil improvers and growing media - Determination of organic matter content and ash German version EN 13039 2011《土壤改良剂和生长基质 有机物含量和灰分测定 德文版 EN 13039-2011》.pdf

《DIN EN 13039-2012 Soil improvers and growing media - Determination of organic matter content and ash German version EN 13039 2011《土壤改良剂和生长基质 有机物含量和灰分测定 德文版 EN 13039-2011》.pdf》由会员分享，可在线阅读，更多相关《DIN EN 13039-2012 Soil improvers and growing media - Determination of organic matter content and ash German version EN 13039 2011《土壤改良剂和生长基质 有机物含量和灰分测定 德文版 EN 13039-2011》.pdf（11页珍藏版）》请在麦多课文档分享上搜索。

1、January 2012 Translation by DIN-Sprachendienst.English price group 8No 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).ICS

2、 65.080!$y-“1861059www.din.deDDIN EN 13039Soil improvers and growing media Determination of organic matter content and ashEnglish translation of DIN EN 13039:2012-01Bodenverbesserungsmittel und Kultursubstrate Bestimmung des Gehaltes an organischer Substanz und AscheEnglische bersetzung von DIN EN 1

3、3039:2012-01Amendements du sol et supports de culture Dtermination de la matire organique et des cendresTraduction anglaise de DIN EN 13039:2012-01SupersedesDIN EN 13039:2000-02www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.1101.1

4、2 DIN EN 13039:2012-01 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 223 “Soil improvers and growing media” (Secretariat: ASI, Austria). The responsible German body involved in its preparation was the Normenausschuss Lebensmi

5、ttel und landwirtschaftliche Produkte (Food and Agricultural Products Standards Committee), Working Committee NA 057-03-01 AA Bodenverbesserungsmittel und Kultursubstrate. The DIN Standard corresponding to the International Standard referred to in this document is as follows: ISO 5725 (all parts) DI

6、N ISO 5725 (all parts) Amendments This standard differs from DIN EN 13039:2000-02 as follows: a) Clause 1 “Scope” has been revised; b) in Table A.1 “Results of an interlaboratory trial to determine pH”, the repeatability standard deviation and the reproducibility relative standard deviation have bee

7、n corrected; c) the standard has been editorially revised and brought in line with the current rules of presentation. Previous editions DIN 11540: 1962-01, 1964-04, 1978-01, 1989-04 DIN 11540-2: 1969-11 DIN 11540-3: 1971-05 DIN 11542: 1978-01 DIN 11542-1: 1966-11 DIN 11542-2: 1968-01 DIN EN 13039: 2

8、000-02 DIN EN 13039:2012-01 3 National Annex NA (informative) Bibliography DIN ISO 5725-1, Accuracy (trueness and precision) of measurement methods and results Part 1: General principles and definitions DIN ISO 5725-2, Accuracy (trueness and precision) of measurement methods and results Part 2: Basi

9、c method for the determination of repeatability and reproducibility of a standard measurement method DIN ISO 5725-3, Accuracy (trueness and precision) of measurement methods and results Part 3: Intermediate measures of the precision of a standard measurement method DIN ISO 5725-4, Accuracy (trueness

10、 and precision) of measurement methods and results Part 4: Basic methods for the determination of the trueness of a standard measurement method DIN ISO 5725-5, Accuracy (trueness and precision) of measurement methods and results Part 5: Alternative methods for the determination of the precision of a

11、 standard measurement method DIN ISO 5725-6, Accuracy (trueness and precision) of measurement methods and results Part 6: Use in practice of accuracy values DIN EN 13039:2012-01 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13039 November 2011 ICS 65.080 Sup

12、ersedes EN 13039:1999English Version Soil improvers and growing media - 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

13、 Substanz und Asche This European Standard was approved by CEN on 17 September 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 a

14、nd 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 in any other language made by translation under the

15、 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 Republic, Denmark, Estonia, Finland, France, Germa

16、ny, 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 NORMALISATION EUROPISCHES KOMITEE FR NORMUNG

17、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 13039:2011: EEN 13039:2011 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .44 Princip

18、le 45 Apparatus .46 Procedure .56.1 Test sample 56.2 Preparation 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 7DIN EN 13039:2012-01 EN 13039:2011 (E)

19、3 Foreword This document (EN 13039:2011) has been prepared by 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 endorsem

20、ent, at the latest by 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

21、or all such patent rights. This document supersedes EN 13039:1999. 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, Belgi

22、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 the United Kingdom. DIN EN 130

23、39:2012-01 EN 13039:2011 (E) 4 1 Scope This European Standard specifies 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. Th

24、e requirements of the standard may differ from the national legal 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 un

25、dated references, the latest edition of the referenced document (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, moistu

26、re content and laboratory compacted bulk density ISO 5725 (all parts), 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

27、fraction of a sample which is free from water and inorganic substances 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

28、Principle The test portion is dried at (103 2) C, then ashed at (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 mainta

29、ining a temperature of (103 2) C. 5.2 Electric muffle furnace, capable of maintaining temperatures of (450 25) C and (550 25) C. DIN EN 13039:2012-01 EN 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 dimen

30、sions are 70 mm width and 20 mm height. 5.4 Desiccator containing an active 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

31、16 h in the muffle furnace (see 5.2) at (550 25) C. Cool in the desiccator (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

32、over the surface of the basin (see 5.3) approximately 5 g of the test 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 conte

33、nts in the oven (see 5.1) maintained at (103 2) 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 successive weightings is

34、 less than 0,01 g. Note the mass of the basin and dried sample m1. Place 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 desi

35、ccator (see 5.4) and weigh to the nearest 0,001 g. Place the basin and 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 o

36、f heating, cooling and weighing until the difference between two successive 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

37、the following equation: 1000121om=mmmmW (1) The ash content, expressed as a percentage by mass of the dried sample, is given by the following equation: DIN EN 13039:2012-01 EN 13039:2011 (E) 6 1000102ash=mmmmW (2) where Wom is the organic matter content, in % m/m; Washis the ash content, in % m/m;m0

38、is the mass of the basin, in g; m1is the mass of the basin and the sample after 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 sh

39、ould be in accordance with Table A.1. A summary of the results of an interlaboratory 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

40、 given. 9 Test report The test report shall include the following: a) a complete 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 spe

41、cified in the European Standard or regarded as optional, as well as any factor which may have affected the results. DIN EN 13039:2012-01 EN 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

42、the auspices of the European Committee for Standardization, to test the procedures 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 f

43、or the determination of organic matter Sample Unfertilized peat perlite Composted 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 dev

44、iation, sr(% m/m) 1,00 1,29 1,20 Repeatability relative standard deviation (% m/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 DIN EN 13039:2012-01