ISO/TS TECHNICAL SPECIFICATION 16558-2 First edition 2015-08-15 Soil quality Risk-based petroleum hydrocarbons - Part 2: Determination of aliphatic and aromatic fractions of semi-volatile petroleum hydrocarbons using gas chromatography with flame ionization detection (GC/FID) Qualité du sol - Hydrocarbures de pétrole a risque - Partie 2: Deétermination des fractions aliphatiques et aromatiques des hydrocarbures de pétrole semi-volatiles par chromatographie en phase gazeuse avec détection a ionisation de la flamme (CPG-FID) Reference number IS0/TS 16558-2:2015(E) ISO International Organization for Standardization @ IS0 2015 dardization 5956617 ed without license from IHS IS0/TS 16558-2:2015(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2015, Published in Switzerland 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 +41 22 749 09 47 copyright@iso.org www.iso.org Not for Resale, 2015/11/11 08:41:18 networking permited without license from IHS IS0/TS 16558-2:2015(E) Contents Page Foreword ..iv Introduction ..V 1 Scope. ..1 2 Normative references 3 Terms and definitions ..2 4 Interferences ..2 5 Principle. ..2 6 Reagents ..3 7 Apparatus .4 8 Sampling, sample conservation, and pretreatment ..5 9 Procedure ..5 9.1 Blank. .5 9.2 Extraction 6 9.2.1 Total petroleum hydrocarbons .6 9.2.2 Split into aliphatic and aromatic fractions 6 9.3 Determination by gas chromatography. ..7 9.3.1 Test of the performance of the gas chromatographic system 7 9.3.2 Repeatability test .7 9.3.3 Calibration 7 9.3.4 Validity check of the calibration function. .7 9.3.5 Measurement 7 9.3.6 Integration 7 9.3.7 Calculation of the total petroleum hydrocarbons. .9 9.3.8 Calculation of the individual extractable fractions 9 9.4 Quality control. .9 9.4.1 Suitability check of the split procedure .9 10 Expression of results ..10 11 Test report .10 Annex A (informative) Examples of gas chromatograms of total extractable petroleum hydrocarbon and aliphatic and aromatic fractions in a standard solution and in soil samples ..11 Annex B (informative) Determination of the boiling range of mineral oil hydrocarbons from the gas chromatogram. 14 Annex C (informative) Information on split of aliphatic and aromatic fractions using silicagel....16 Bibliography 20 ii censee=Zhejiang Institute of Standardization 5956617 vithout license from IHS