ISO INTERNATIONAL STANDARD 10473 First edition 2000-04-15 Ambient air Measurement of the mass of particulate matter on a filter medium - Beta-ray absorption method Airambiant-Mesurage de la massedes matieres particulaires surun milieu filtrant Methode par absorption de rayons beta Reference number ISO 10473:2000(E) ISO @ ISO 2000 THS unde Not for Resale ISO 10473:2000(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 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 @ISO2000 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-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 734 10 79 E-mail [email protected] Web www.iso.ch Printed in Switzerland Iso2000-All rightsreserved itted without license from IHS Not for Resale ISO 10473:2000(E) Contents Page Foreword. 1 Scope 2 Term and definition 3 Principle.. 3.1 Description. 3.2 Limitations. 4 Apparatus 4.1 Apparatus for sequential or simultaneous sampling and analysis. 4.2 Apparatus for separate sampling and analysis... 5 Calibration of the beta gauge ... 5.1 Zero calibration and variability.. 5.2 8 6 Procedure 10 6.1 Sampling time .... 10 6.2 Automatic apparatus for sequential or simultaneous sampling and analysis... 10 6.3 Automatic apparatus for separate sampling and analysis... 7 Expression of results . 8 Test report Bibliograph ili HS under from IHS Not for Resal ISO 10473:2000(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 technical committees. Each member body interested in a subject for which a technical committee has been established has liaison with IsO, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights International Standard ISO 10473 was prepared by Technical Committee ISO/TC 146, Air quality, Subcommittee SC3,Ambientatmospheres ional Organization for Standardization ISO 2000 - All rights reserved ISO 10473:2000(E) INTERNATIONAL STANDARD Ambient air Measurement of the mass of particulate matter on a filter medium Beta-ray absorption method 1 Scope This International Standard describes a method for the measurement of the mass of particulate matter in ambient air and is based on the absorption of beta rays by the particulate matter. This method applies to the determination of concentrations ranging from a few micrograms per cubic metre to a few milligrams per cubic metre contained in the atmospheres of urban, rural or industrial areas. concentration detection limit ranges between 5 μg/m3 and 10 μg/m3, computed as follows: q (m3 / h) t (h) Sampling techniques are not included in the scope of