ISO/TS TECHNICAL SPECIFICATION 20131-2 Firstedition 2018-06 Soil quality - Easy laboratory assessments of soil denitrification, a process source of N2O emissions Part 2: Assessmentofthecapacityof soilsto reduce N20 Qualitedu sol-Essais simplesdelaboratoirede caracterisation de ladenitrificationdanslessols,unprocessussourced'emissiondeN2O Partie 2:Evaluationde la capacite des sols a reduire le N20 Referencenumber IS0/TS20131-2:2018(E) TSo ISO2018 y IHS Markit underlicensewith IS0/TS20131-2:2018(E COPYRIGHTPROTECTEDDOCUMENT ISO2018 All rights reserved. Unless otherwise specified, or required in the contextofits implementation,no part of this publication may bereproduced orutilizedotherwise inanyformorbyanymeans,electronicormechanical,including photocopying,orposting beloworiso'smemberbodyinthecountryoftherequester ISO copyrightoffice CP 401.Ch.de Blandonnet 8 CH-1214Vernier, Geneva Phone:+41227490111 Fax:+41227490947 Email:[email protected] Website:www.iso.org Published in Switzerland IS0 2018-All rights reserved No reproduction or networking permited without license frm IHs rovidedby IHSMarkitunderlicense Not for Resale, 07/10/2018 07:19:21 MDT IS0/TS20131-2:2018(E) Contents Page Foreword .V Introduction ..vi 1 Scope. 1 2 Normativereferences 3 Termsanddefinitions 4 Symbolsandabbreviatedterms (exceptchemicalsandreagents) 5 Principle. 2 6 Materials 2 6.1 Test materials 2 6.2 Apparatus 2 6.3 Reagents. 2 7 Procedures 3 7.1 Soil sampling and preparation. 7.2 Soil slurries incubation... 7.3 Gas samples analysis... 4 8 Controlofprocedure(optional).. 9 Datapresentationandinterpretation. 10 Testreport. AnnexA(informative)Results obtained ontwoagricultural soils. AnnexB(informative)Internationalringtest. 8 Bibliography 13 ili videdby IHS Markit under licensewithANS