ISO INTERNATIONAL STANDARD 16703 First edition 2004-11-01 Soil quality Determination of content of hydrocarbon in the range C1o to C4o by gas chromatography Qualitedusol-Dosagedes hydrocarbures de C1oa C4opar chromatographieenphasegazeuse Reference number ISO 16703:2004(E) @ISO 2004 Copyright Intermational Organization for Standardization censewithISO Not for Resale ISO 16703:2004(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The IsO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation C ISO2004 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ISO2004-All rights reserved d by IHS ur No reproduction Not for Resale ISO16703:2004(E) Contents Page Foreword. .iv 1 Scope. 2 Normative references 3 Terms and definitions.. 4 Interferences 5 Principle 6 Reagents.... 6.7 Hydrocarbonstandardsolutionforcalibration. 6.8 Control solution .......... 6.9 System-performancestandardsolution.. 7 Apparatus.............. 8 Sampling,sampleconservationandpretreatment.. 9 Procedure ..... 9.1 Preparation of the clean-up column.. 9.2 Blank.... 9.3 Extractionandclean-up 9.4 Determinationbygaschromatography.... 9.5 Quality control.... 10 Precision.. 11 Test report . Annex A (informative) Examples of gas chromatograms of mineral oil hydrocarbon standard and soil samples..... 10 Annex B (informative) Determination of the boiling range of mineral oil hydrocarbons from the gas chromatogram.. AnnexC(informative)Precisiondata 17 Bibliography ... ili ense with IS I without license from IHS Not for Re ISO 16703:2004(E) Foreword ISO(theInternational OrganizationforStandardization)isaworldwidefederationofnational standardsbodies technicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeen International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 16703 was prepared by Technical Committee ISO/TC 190, Soil quality, Subcommittee SC 3, Chemical methodsandsoilcharacteristics. ISO2004-All rights reserved Not for Resale INTERNATIONALSTANDARD ISO 16703:2004(E) Soil quality Determination of content of hydrocarbon in the range C1o to C4o by gas chromatography Scope This International Standard specifies a method for the quantitative determination of the mineral oil (hydrocarbon) content in field-moist soil samples by gas chromatography. expressed as dry matter, and can be adapted to lower limits of detection. This International Standard is applicable to the determination of all hydrocarbons with a boiling range of 175C to 525C,of n-alkanes from C1oH22 toC4oH8