BS PD ISO TS 17503-2015 Statistical methods of uncertainty evaluation Guidance on evaluation of uncertainty using two-factor crossed designs《不确定度评估的统计方法 采用双因素交叉设计评估不确定度的指南》.pdf
《BS PD ISO TS 17503-2015 Statistical methods of uncertainty evaluation Guidance on evaluation of uncertainty using two-factor crossed designs《不确定度评估的统计方法 采用双因素交叉设计评估不确定度的指南》.pdf》由会员分享,可在线阅读,更多相关《BS PD ISO TS 17503-2015 Statistical methods of uncertainty evaluation Guidance on evaluation of uncertainty using two-factor crossed designs《不确定度评估的统计方法 采用双因素交叉设计评估不确定度的指南》.pdf(28页珍藏版)》请在麦多课文档分享上搜索。
1、BSI Standards Publication Statistical methods of uncertainty evaluation Guidance on evaluation of uncertainty using two-factor crossed designs PD ISO/TS 17503:2015National foreword This Published Document is the UK implementation of ISO/TS 17503:2015. The UK participation in its preparation was entr
2、usted to Technical Committee SS/6, Precision of test methods. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.
3、 The British Standards Institution 2015. Published by BSI Standards Limited 2015 ISBN 978 0 580 89566 1 ICS 17.020 Compliance with a British Standard cannot confer immunity from legal obligations. This Published Document was published under the authority of the Standards Policy and Strategy Committe
4、e on 30 November 2015. Amendments/corrigenda issued since publication Date Text affected PUBLISHED DOCUMENT PD ISO/TS 17503:2015 ISO 2015 Statistical methods of uncertainty evaluation Guidance on evaluation of uncertainty using two-factor crossed designs Mthodes statistiques dvaluation de lincertitu
5、de Lignes directrices pour lvaluation de lincertitude des modles deux facteurs croiss TECHNICAL SPECIFICATION ISO/TS 17503 Reference number ISO/TS 17503:2015(E) First edition 2015-11-01 PD ISO/TS 17503:2015 ISO/TS 17503:2015(E)ii ISO 2015 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2015, Pu
6、blished in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Perm
7、ission can be requested from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.org PD ISO/TS 17503:2015 ISO/TS 1
8、7503:2015(E)Foreword iv Introduction v 1 Scope . 1 2 Normative references 1 3 T erms and definitions . 1 4 Symbols 2 5 Conduct of experiments 4 6 Preliminary review of data Overview 4 7 Variance components and uncertainty estimation 4 7.1 General considerations for variance components and uncertaint
9、y estimation 4 7.2 Two-way layout without replication 5 7.2.1 Design 5 7.2.2 Preliminary inspection . 5 7.2.3 Variance component estimation. 5 7.2.4 Standard uncertainty for the mean of all observations 6 7.2.5 Degrees of freedom for the standard uncertainty. 6 7.3 Two-way balanced experiment with r
10、eplication (both factors random) . 7 7.3.1 Design 7 7.3.2 Preliminary inspection . 7 7.3.3 Variance component extraction 7 7.3.4 Standard uncertainty for the mean of all observations 8 7.3.5 Degrees of freedom for the standard uncertainty. 9 7.4 Two-way balanced experiment with replication (one fact
11、or fixed, one factor random) .10 7.4.1 Design .10 7.4.2 Preliminary inspection 10 7.4.3 Variance component extraction .11 7.4.4 Standard uncertainty for the mean of all observations .11 7.4.5 Degrees of freedom for the standard uncertainty12 8 Application to observations on a relative scale .12 9 Us
12、e of variance components in subsequent measurements 12 10 Alternative treatments 13 10.1 Restricted (or residual) maximum likelihood estimates .13 10.2 Alternative methods for model reduction 13 11 Treatment with missing values 13 Annex A (informative) Examples .14 Bibliography .19 ISO 2015 All righ
13、ts reserved iii Contents Page PD ISO/TS 17503:2015 ISO/TS 17503:2015(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 tech
14、nical committees. Each member body interested in a subject for which a technical committee has been established 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
15、 with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria nee
16、ded for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
17、 rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name used i
18、n this document is information given for the convenience of users and does not constitute an endorsement. For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barri
19、ers to Trade (TBT) see the following URL: Foreword - Supplementary information The committee responsible for this document is ISO/TC 69, Applications of statistical methods, Subcommittee SC 6, Measurement methods and results.iv ISO 2015 All rights reserved PD ISO/TS 17503:2015 ISO/TS 17503:2015(E) I
20、ntroduction Uncertainty estimation usually requires the estimation and subsequent combination of uncertainties arising from random variation. Such random variation may arise within a particular experiment under repeatability conditions, or over a wider range of conditions. Variation under repeatabil
21、ity conditions is usually characterized as repeatability standard deviation or coefficient of variation; precision under wider changes in conditions is generally termed intermediate precision or reproducibility. The most common experimental design for estimating the long- and short-term components o
22、f variance is the classical balanced nested design of the kind used by ISO 5725-2. In this design, a (constant) number of observations are collected under repeatability conditions for each level of some other factor. Where this additional factor is Laboratory, the experiment is a balanced inter-labo
23、ratory study, and can be analysed to yield estimates of within-laboratory variance, , the between-laboratory component of variance, , and hence the reproducibility variance, . Estimation of uncertainties based on such a study is considered by ISO 21748. Where the additional grouping factor is anothe
24、r condition of measurement, however, the between-group term can usefully be taken as the uncertainty contribution arising from random variation in that factor. For example, if several different extracts are prepared from a homogeneous material and each is measured several times, analysis of variance
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
本资源只提供5页预览,全部文档请下载后查看!喜欢就下载吧,查找使用更方便
5000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- BSPDISOTS175032015STATISTICALMETHODSOFUNCERTAINTYEVALUATIONGUIDANCEONEVALUATIONOFUNCERTAINTYUSINGTWOFACTORCROSSEDDESIGNS

链接地址:http://www.mydoc123.com/p-398949.html