ISO INTERNATIONAL STANDARD 15009 Third edition 2016-02-15 Soil quality Gas chromatographic determination of the content of volatile aromatic hydrocarbons, naphthalene and volatile halogenated hydrocarbons - Purge-and-trap method with thermal desorption Qualité du sol-Détermination par chromatographieenphase gazeuse des teneurs en hydrocarbures aromatiques volatils, en naphtalene eten hydrocarbures halogenés volatils-Methodepar purge etpiéegeageavecdéesorption thermique Referencenumber IS015009:2016(E) ISO Intemational Organization for Standardization @IS02016 GINSTOFSTANDARDIZATION C15956617 efrom IHS IS0 15009:2016(E) COPYRIGHTPROTECTEDDOCUMENT IS02016,Published inSwitzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8. CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +4122 749 09 47 copyright@iso.org www.iso.org Intemationaibr PrganizationforStandardization Uicensee-ZHEJIANG INSTOF STANDARDIZoISQ,6-All rights reserved etworking permitted without license from IHS NotforResale, 2016/4/26 02:13:42 IS0 15009:2016(E) Contents Page Foreword ..iv 1 Scope. ..1 2 Normativereferences 3 Principle 4 Reagents .2 4.1 Water,freeofvolatilearomaticand volatilehalogenated hydrocarbons .2 4.2 Internal standards .2 4.3 Standard compounds 4.3.1 Volatile aromatic hydrocarbons. .3 4.3.2 Volatile halogenated hydrocarbons .3 4.4 Methanol. .4 4.5 Adsorbing agent. .4 4.6 Coolingwaterforpurgeandtrap. .4 4.7 Inert gas for the gas chromatograph .5 4.8 Nitrogen or helium as inert gas for the purge equipment .5 4.9 Standard solutions. 4.9.1 Standard stock solutionsfor volatile aromatic and halogenated compoundsinmethanol,4g/1 ..5 4.9.2 Internal standard solutions in methanol, 4 g/l .5 4.9.3 Calibration solutions ..5 4.10 Methanol containing internal standards ..6 5 Apparatus 6 Sampling,preservationandsamplepretreatment .7 6.1 General .7 6.2 Sampling using vials pre-filled with methanol .8 6.3 Sampling using coring tube method. ..8 7 Procedure .8 7.1 Blankdetermination ..8 7.2 Extraction. .9 7.3 Purgeandtrap .9 7.4 Gas chromatographic analysis .9 7.4.1 Gas chromatographic conditions ..9 7.4.2 Calibration ..10 7.4.3 Measurement ..11 8 Calculation ..12 8.1 Calculationoftheconcentration ofavolatilecompound inthewatersample ..12 8.2 Calculation oftheconcentration ofavolatilecompound in thesoil sample ..12 9 Expressionofresults. ..13 10 Precision ..13 11 Test report ..13 Annex A (informative) Relative retention time with respect to ethylbenzene-D1o of volatile aromatic hydrocarbons and volatile halogenated hydrocarbons on following columns: CP-Sil5 CB and CP-Sil 13 CB ..14 AnnexB (normative)Checkon internal standards .16 AnnexC (informative) Validation. ..17 AnnexD(informative)Informationonpurgeandtrapinstruments. ..20 ntemaional oganzation@S26-All rights reserved iii Licensee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 vithoutlicense from IHS Not for Resale, 2016/4/26 02:13:42