IEC GUIDE 98-4 Uncertainty of measurement Part 4: Role of measurement uncertainty inconformityassessment First edition 2012 ISO/IEC2012 itted without license from IHS Not for Resale ISO/IECGUIDE98-4:2012(E) PDFdisclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but 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 aproblem relating to it is found, please inform the Central Secretariat at the addressgiven below. COPYRIGHTPROTECTEDDOCUMENT ? ISO/IEC2012 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 + 4122 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO/IEC 2012 - All rights reserved without license from IHS Not for Resale ISO/IECGUIDE98-4:2012(E) ISO/IECForeword Commission) form the specialized system for worldwide standardization. National bodies that are members of IsO or IEC participate in the development of International Standardsthrough technical committees established by the respective organization to deal with particular fields of technical activity. IsO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. Draft Guides adopted by the responsible Committee or Group are circulated to the member bodies for voting Publication as a Guide 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. sO shall not be held responsible for identifying any or all such patent rights. ISO/IEC Guide 98-4 was prepared by Working Group1 of the Joint Committee for Guides in Metrology (as JCGM 106:2012),andwas adopted bythenational bodiesofISOand IEC. ISO/lEC Guide 98 consists of the following parts, under the general title Uncertainty ofmeasurement: Part1:Introductiontothe expressionofuncertainty inmeasurement Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) Part4:Roleofmeasurementuncertaintyinconformityassessment The following parts are planned: Part 2: Concepts and basic principles Part 5:Applications of the least-squares method ISO/IEC Guide 98-3 has two supplements:. Supplement1:Propagationof distributionsusingaMonteCarlomethod Supplement 2:Extension to any number of output quantities The following supplement toISO/IEC Guide 98-3 isplanned Supplement3:Modelling symbol is apointonthe linein the Englishversionanda commaonthe line intheFrenchversion. AnnexZZ has been appended to provide a list of corresponding ISO/IEC Guides and JCGM guidance documents for which equivalents are not given in the text. aloganizatonfrstandardizationAllrightsreserved ii