ISO INTERNATIONAL STANDARD 29042-2 First edition 2009-02-15 Safety of machinery Evaluation of the emission of airborne hazardous substances Part 2: Tracer gas method for the measurement of the emission rate of a given pollutant Sécurité des machines-Evaluation de 'emission de substances dangereusesvehiculeesparI'air- Partie 2: Methode par gaz traceur pour le mesurage du taux d'emission d'un polluant donne Reference number ISO 29042-2:2009(E) @ISO 2009 Copyright Intemational Organization for Standardization Not for Resale ISO29042-2:2009(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 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 fle; 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 given below. COPYRIGHTPROTECTEDDOCUMENT @ISO2009 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-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2009 - All rights reserved without license from IHS Not for Resale ISO29042-2:2009(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies 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 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 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 patent rights. ISO 29042-2 was prepared by Technical Committee ISO/TC 199, Safety of machinery. Iso 29042 consists of the following parts, under the general title Safety of machinery- Evaluation of the emissionofairbornehazardous substances: Part1:Selectionoftestmethods Part2:Tracergasmethodforthemeasurementofthe emissionrateofagivenpollutant Part3:Testbenchmethodforthemeasurement of the emissionrateof agivenpollutant Part 4:Tracermethodforthemeasurement of the capture efficiencyofan exhaustsystem The following parts are under preparation: Part 5:Test bench method for the measurement of the separation efficiency by mass of air cleaning systems with unducted outlet Part 6:Test bench method for the measurement of the separation efficiency by mass of air cleaning systems withducted outlet Part7:Testbenchmethodforthemeasurementofthepollutant concentrationparameter are to form the subjects of future parts 8 and 9. ili al organizaonstandardzalon'ghtsreserved ISO29042-2:2009(E) Introduction The structure of safety standards in the field of machinery is as follows: type-A standards (basic safety standards) giving basic concepts, principles for design, and general a) aspects that can be applied to all machinery; b） can be used across a wide range of machinery type-B1 standards on particular safety aspects (e.g. safety distances, surface temperature, noise); type-B2 standards on safeguards (e