ISO 16107-2007 Workplace atmospheres - Protocol for evaluating the performance of diffusive samplers《工作场所空气 扩散取样器的性能评定协议》.pdf
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1、 Reference number ISO 16107:2007(E) ISO 2007INTERNATIONAL STANDARD ISO 16107 Second edition 2007-10-15 Workplace atmospheres Protocol for evaluating the performance of diffusive samplers Air des lieux de travail Protocole pour lvaluation de la performance des dispositifs de prlvement par diffusion I
2、SO 16107:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes 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 downlo
3、ading this file, parties accept therein the responsibility of not infringing Adobes 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 G
4、eneral Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address gi
5、ven below. COPYRIGHT PROTECTED DOCUMENT ISO 2007 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 th
6、e address below or ISOs 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 copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2007 All rights reservedISO 16107:2007(E) ISO 2007 All righ
7、ts reserved iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 2 4 Symbols and abbreviated terms . 2 5 Summary of test protocol 3 5.1 Factors affecting performance 3 5.2 “Accuracy” as providing a single performance value linking to measuremen
8、t uncertainty 4 5.3 Bias, intersampler variability and the effects of environmental uncertainty 4 5.4 Reverse diffusion 5 5.5 Capacity Control of effects from interfering compounds 6 5.6 Capacity overload detection 6 5.7 Desorption efficiency . 7 5.8 Atmospheric pressure 7 5.9 Wind direction . 7 5.1
9、0 Simplifications 7 6 Apparatus 7 6.1 Exposure chamber specifications 7 6.2 Controlled environmental conditions. 8 6.3 Inter-run variability . 8 7 Reagents and materials . 9 8 Procedure 9 9 Sampler performance classification. 9 10 Accuracy 10 10.1 General. 10 10.2 Accuracy range confidence limit 10
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 ISO 16107:2007(E) iv ISO 2007 All rights reservedForeword ISO (the International Org
11、anization 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 technical committees. Each member body interested in a subject for which a technical committee has been establi
12、shed has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardizatio
13、n. International Standards are drafted in accordance with the rules given in the ISO/IEC 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.
14、Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. 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 pat
15、ent rights. ISO 16107 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 16107:2007(E) ISO 2007 All rights reserved v Introduction
16、Gas or vapor sampling is often accomplished by actively pumping air through a collection medium such as activated charcoal. Problems associated with a pump, such as inconvenience, inaccuracy and expense, are inextricable from this type of sampling. The alternative covered by this International Stand
17、ard is to use diffusion for moving the compound of interest onto the collection medium. This approach to sampling is attractive because of the convenience of use and low total monitoring cost. However, previous studies have found significant problems with the accuracy of some samplers. Therefore, al
18、though diffusive samplers may provide a plethora of data, inaccuracies and misuse of diffusive samplers may yet affect research studies. Furthermore, worker protection may be based on faulty assumptions. The aim of this International Standard is to counter the uncertainties in diffusive sampling thr
19、ough achieving a broadly accepted set of performance tests and acceptance criteria for proving the efficacy of any given diffusive sampler intended for use. This International Standard is intended specifically for the large-scale evaluation of many diffusive sampler/analyte pairs of practical applic
20、ation and is complementary to EN 838. An affordable, experimental evaluation determines a single performance value indicating how a sampler performs in a typical situation. A sampler can thereby be quickly judged as to acceptability. Additionally, sufficient data are obtained to predict performance
21、in many atypical situations. For example, although sampling may normally be done at room temperature, a particular need may call for use in extreme cold. In such a case, the single performance value would be superseded by the particular needs. INTERNATIONAL STANDARD ISO 16107:2007(E) ISO 2007 All ri
22、ghts reserved 1 Workplace atmospheres Protocol for evaluating the performance of diffusive samplers 1 Scope This International Standard specifies methods for evaluation of sampler performance in terms of workplace conditions: wind speed, humidity, temperature, atmospheric pressure, and analyte varia
23、tion. The concise set of experiments specified aims to minimize cost to the user. The evaluation is limited to conditions commonly encountered in personal sampling in the indoor workplace setting, namely wind speeds of up to 0,5 m/s and for sampling periods typically from 2 h to 8 h. Static or area
24、sampling, unlike personal sampling where movement of the subject is significant, may sometimes be subject to sampling-rate reduction due to stagnation at very low wind speeds. This International Standard therefore does not apply to wind speeds of less than 0,1 m/s relative to static samplers. Sample
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