DIN EN 16087-2-2012 Soil improvers and growing media - Determination of the aerobic biological activity - Part 2 Self heating test for compost German version EN 16087-2 2011《土壤改良剂和.pdf

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1、January 2012 Translation by DIN-Sprachendienst.English price group 7No 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+L“1860841www.din.deDDIN EN 16087-2Soil improvers and growing media Determination of the aerobic biological activity Part 2: Self heating test for compostEnglish translation of DIN EN 16087-2:2012-01Bodenverbesserungsmittel und Kultursubstrate Bestimmung der aeroben biologischen Aktivitt T

3、eil 2: Selbsterhitzungstest fr KompostEnglische bersetzung von DIN EN 16087-2:2012-01Amendements du sol et supports de culture Dtermination de lactivit biologique arobie Partie 2: Test dauto-chauffement pour compostTraduction anglaise de DIN EN 16087-2:2012-01SupersedesDIN V 11539:2007-06www.beuth.d

4、eDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.1001.12 DIN EN 16087-2:2012-01 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” (Se

5、cretariat: ASI, Austria). The responsible German body involved in its preparation was the Normenausschuss Lebensmittel und landwirtschaftliche Produkte (Food and Agricultural Products Standards Committee), Working Committee NA 057-03-01 AA Bodenverbesserungsmittel und Kultursubstrate. DIN EN 16087 c

6、onsists of the following parts, under the general title Soil improvers and growing media Determination of the aerobic biological activity: Part 1: Oxygen uptake rate (OUR) Part 2: Self heating test for compost Amendments This standard differs from DIN V 11539:2007-06 as follows: a) normative referen

7、ces have been deleted; b) the results of an interlaboratory trial are given in Annex A “Validation”; c) a setup of the measurement is shown in Figure 1; d) the classification of degrees of rotting on the basis of maximum temperatures has been deleted; e) the standard has been brought in line with th

8、e current rules of presentation. Previous editions DIN V 11539: 2007-06 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16087-2 November 2011 ICS 65.080 English Version Soil improvers and growing media - Determination of the aerobic biological activity - Part 2: Self heating test for compost Am

9、endements du sol et supports de culture - Dtermination de lactivit biologique arobie - Partie 2: Test dauto-chauffement pour compost Bodenverbesserungsmittel und Kultursubstrate - Bestimmung der aeroben biologischen Aktivitt - Teil 2: Selbsterhitzungstest fr Kompost This European Standard was approv

10、ed 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 and bibliographical references concerning such nationa

11、l 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 responsibility of a CEN member into its own language

12、 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, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

13、 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 Marnix 17, B-1000 Brussels

14、2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16087-2:2011: EEN 16087-2:2011 (E) 2 Contents Page Foreword 31 Scope 42 Principle 43 Apparatus .43.1 Dewar vessel 43.2 Temperature measurement device 43.3 Sieve 43.4 Temperature

15、controlled room or climate cabinet .44 Procedure .44.1 General 44.2 Sample preparation .44.2.1 General 44.2.2 Fist test .44.3 Determination of self-heating .55 Expression of results 66 Test report 6Annex A (informative) Validation .7Bibliography 8DIN EN 16087-2:2012-01 EN 16087-2:2011 (E) 3 Foreword

16、 This document (EN 16087-2:2011) 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 endorsement, at

17、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 or all s

18、uch patent rights. SAFETY PRECAUTIONS Care should be taken when handling substances of caustic nature or samples that may contain sharps or are of a dusty nature. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement

19、 this European Standard: Austria, Belgium, 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, Switzer

20、land and the United Kingdom. DIN EN 16087-2:2012-01 EN 16087-2:2011 (E) 4 1 Scope This European Standard describes a method to determine the aerobic biological activity using a self-heating test. This method is only applicable to composted material. 2 Principle Measurement of self-heating in a Dewar

21、 vessel and measurement of the maximum temperature, where the temperature is an indicator of the state of aerobic biological activity. 3 Apparatus 3.1 Dewar vessel Volume 1,5 l, internal diameter (100 3) mm. 3.2 Temperature measurement device Capable of recording a maximum temperature. 3.3 Sieve 10

22、mm mesh size. 3.4 Temperature controlled room or climate cabinet 4 Procedure 4.1 General The self-heating test shall be carried out as soon as possible after sampling. If a delay to the start of testing cannot be avoided, cool storage (5 3) C for up to three days) of the samples is then necessary. E

23、nsure that the temperature of the sample material corresponds to a temperature of (22 2) C at the beginning of the test. Record the ambient temperature during the trial to ensure that the required temperature is maintained. 4.2 Sample preparation 4.2.1 General The fresh test sample is sieved 10 mm (

24、see 3.3). If more than 30 % of the material is retained on the sieve, the method is not appropriate. The moisture content is adjusted according to the results of a fist test (see 4.2.2). 4.2.2 Fist test The fist test shall be carried out wearing protective gloves. DIN EN 16087-2:2012-01 EN 16087-2:2

25、011 (E) 5 The material to be tested shall be adjusted to a moisture content that is optimal for microbial processes prior to testing. The compost sample is pressed in the fist. If water beads escape between the fingers, the sample is too wet. If the sample crumbles in the hand when the fist is opene

26、d, without further action, the sample is too dry. Suitable moisture content is present if the pressed sample forms an aggregate which crumbles under mild pressure, after the fist has been opened; if, on the contrary, it only deforms, it is too wet. The optimal moisture content is that which may be d

27、escribed as “moist as a well-squeezed sponge“. When moistening excessively dry sample material the water shall be mixed into the sample material in such a manner that it is evenly absorbed. In the case of very dry samples, this process requires thorough mixing at intervals. This procedure shall last

28、 no more than 8 h. Excessively moist samples shall be carefully air-dried ( 30 C) and thoroughly mixed thereafter. The maximum time from sampling to the start of the test shall not exceed five days. 4.3 Determination of self-heating After optimisation of the moisture content, the Dewar vessels (see

29、3.1) are filled up to the rim with loosely poured compost, tapping the test containers on a base, and the sensor of the temperature measurement device (see 3.2) is placed approximately 3 cm above the inside bottom of the vessel. The vessels shall be set up without covering (see Figure 1). The room t

30、emperature shall be maintained at (22 2) C for the entire duration. As a rule the temperature maximum (Tmax) in the sample is reached after two to five days. NOTE If a high precision for the monitoring of the temperature rise is required (for example for materials low in biological activity like “ma

31、ture“ composts), the test should be carried out under temperature controlled conditions. Key 1 temperature measurement device 2 open Dewar vessel 3 sample Figure 1 Setup of the measurement DIN EN 16087-2:2012-01 EN 16087-2:2011 (E) 6 The test ends after the temperature maximum has been reached and t

32、he temperature is dropping, but after ten days at the latest. The measurement shall be performed in duplicate. 5 Expression of results The result Tmaxis expressed as the mean from both measurements in C with an accuracy of one decimal place. 6 Test report The test report shall contain at least the f

33、ollowing: a) a reference to this standard; b) all data required for a complete identification of the sample; c) the maximum temperature in C, rounded to one decimal place; d) if required, the temperature profile of the sample during analysis; e) details of all work cycles not contained in this stand

34、ard or that were considered optional, as well as all factors that may have influenced the results. DIN EN 16087-2:2012-01 EN 16087-2:2011 (E) 7 Annex A (informative) Validation In Table A.1, the results of the interlaboratory trial are shown. Table A.1 Summary of the results of the self heating test

35、 TmaxC Sample compost 1 compost 2 C Number of laboratories retained after eliminating outliers 14 14 Number of outliers (laboratories) 0 0 Mean value 22,26 25,30 Repeatability standard deviation, sr 1,16 1,14 Repeatability relative standard deviation 0,05 0,05 Repeatability limit, r = 2,8 sr3,25 3,1

36、9 Reproducibility standard deviation, sR2,19 2,59 Reproducibility relative standard deviation 0,10 0,10 Reproducibility limit, r = 2,8 sR6,13 7,25 DIN EN 16087-2:2012-01 EN 16087-2:2011 (E) 8 Bibliography 1 Anonym, 1996, Ergebnisbericht Ringversuch 1995, Herausgeber: Bundesgtegemeinschaft Kompost e.

37、V., BGK-Nr. 223 2 Jourdan, B., 1988, Zur Kennzeichnung des Rottegrades von Mll- und Mllklrschlammkomposten, Stuttgarter Berichte zur Abfallwirtschaft 30, ESV Erich-Schmidt-Verlag, Berlin 3 RAL-GZ 251:1999, Kompost Gtesicherung, Beuth Verlag GmbH 4 DIN 12492, Laboratory glassware Instruments with vacuum-jacket insulation DIN EN 16087-2:2012-01