ISO INTERNATIONAL STANDARD 16107 Second edition 2007-10-15 Workplace atmospheres Protocol for evaluating the performance of diffusive samplers Air des lieux de travailProtocole pourI'évaluation de la performance des dispositifs de prelevement par diffusion Reference number ISO 16107:2007(E) @ ISO 2007 ISO 16107:2007(E) PDFdisclaimer 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 the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below COPYRIGHTPROTECTEDDOCUMENT ISO2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, 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 @ISO2007-All rights reserved ISO 16107:2007(E) Contents Page Foreword. iv Introduction 1 Scope 2 Normative references 3 Termsanddefinitions 4 Symbols and abbreviated terms ... 5 Summaryoftestprotocol 5.1 Factors affecting performance. 5.2 "Accuracy" as providing a single performance value linking to measurement uncertainty. 5.3 Bias, intersampler variability and the effects of environmental uncertainty... 5.4 Reverse diffusion......... 5.5 Capacity - Control of effects from interfering compounds 5.6 Capacity overload detection. 5.7 Desorption efficiency.... 5.8 Atmospheric pressure.. 5.9 Winddirection. 5.10 Simplifications 6 Apparatus... 6.1 Exposurechamberspecifications 6.2 Controlled environmental conditions. 6.3 Inter-run variability .... 7 Reagents and materials 8 Procedure. 9 6 Sampler performance classification.. 9 10 Accuracy 10 10.1 General. 10.2 Accuracy range confidence limit 10 10.3 Expanded uncertainty . 11 11 Test report 11 Annex A (informative) Worked example - Program for diffusive sampler accuracy range calculation .... 13 Annex B (informative) Calculation of variances. .15 Bibliography 16 ion'ghts reserved ii ISO 16107:2007(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO member bodies). The work of preparing International Standards is normally carried out through IsO technicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeen established has the right to be represented on that committee. International organizations, governmental and 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. adopted by the technical committees are circulated to the member bodies for voting. Publication as an Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO16107 was prepared by Technical Committee ISO/TC 146,Air quality, Subcommittee SC 2, Workplace atmospheres This second edition cancels and replaces the first edition (isO 16107:1999), which has been technically revised. @ ISO 2007 - All rights reserved ISO 16107:2007(E) Introduction Gas or vapor sampling is often accomplished by actively pumping air through a collection medium such as activated charcoal. Problems associated with a