BS PD ISO TS 20460-2015 Paper and board Automated on-line testing Metrological comparability between standardized measurements and output of on-line gauges《纸和纸板 自动在线检测 标准化测量与在线测量仪输.pdf
《BS PD ISO TS 20460-2015 Paper and board Automated on-line testing Metrological comparability between standardized measurements and output of on-line gauges《纸和纸板 自动在线检测 标准化测量与在线测量仪输.pdf》由会员分享,可在线阅读,更多相关《BS PD ISO TS 20460-2015 Paper and board Automated on-line testing Metrological comparability between standardized measurements and output of on-line gauges《纸和纸板 自动在线检测 标准化测量与在线测量仪输.pdf(28页珍藏版)》请在麦多课文档分享上搜索。
1、BSI Standards PublicationPaper and board Automatedon-line testing Metrologicalcomparability between standardized measurements and output of on-line gaugesPD ISO/TS 20460:2015National forewordThis Published Document is the UK implementation of ISO/TS 20460:2015.The UK participation in its preparation
2、 was entrusted to TechnicalCommittee PAI/11, Methods of test for paper, board and pulps.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for i
3、ts correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 89161 8ICS 85.060Compliance with a British Standard cannot confer immunity fromlegal obligations.This Published Document was published under the authority of theStandards Policy and S
4、trategy Committee on 30 November 2015.Amendments/corrigenda issued since publicationDate Text affectedPUBLISHED DOCUMENTPD ISO/TS 20460:2015 ISO 2015Paper and board Automated on-line testing Metrological comparability between standardized measurements and output of on-line gaugesPapiers et cartons E
5、ssais en ligne automatiss Comparabilit mtrologique entre mesures normalises et rsultats de jauges en continuTECHNICAL SPECIFICATIONISO/TS20460Reference numberISO/TS 20460:2015(E)First edition2015-11-15PD ISO/TS 20460:2015ISO/TS 20460:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT
6、 ISO 2015, Published in SwitzerlandAll 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 perm
7、ission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgPD ISO/TS 20460:2015ISO/T
8、S 20460:2015(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Methodology requirements 74.1 Requirements for the measuring equipment and its measurement process 74.1.1 General requirements for measuring systems . 74.1.2 Consistency of the online equipment it
9、self . 84.1.3 Consistency of the online measurement process 84.2 Requirements for comparison of online and off-line equipment 84.2.1 Calibration procedure principles . 84.2.2 Calibration procedure requirements 95 Methods to evaluate comparability 95.1 Sampling operations, conditioning and stability
10、. 95.2 Basis weight 105.3 Thickness 105.4 Moisture content 105.5 Brightness, colour, whiteness, k and s . 105.6 Ash content . 115.7 Gloss 11Annex A (informative) Typical tolerances .12Annex B (informative) Examples of graphical evaluations 13Annex C (informative) Online gauges principles, limitation
11、s to correlations, sources of errors .14Bibliography .17 ISO 2015 All rights reserved iiiContents PagePD ISO/TS 20460:2015ISO/TS 20460:2015(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of prepa
12、ring 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 the right to be represented on that committee. International organizations, governmental and non-governmental, in l
13、iaison with ISO, also take part in the work. ISO collaborates closely 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 D
14、irectives, Part 1. In particular the different approval criteria needed 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
15、 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. 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 dec
16、larations received (see www.iso.org/patents).Any trade name used in 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
17、about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT), see the following URL: Foreword Supplementary information .The committee responsible for this document is ISO/TC 6, Paper, boards and pulps.iv ISO 2015 All rights reservedPD ISO/TS 20460:2015ISO/TS 20460:2015(E)Intr
18、oductionThere are two concepts discussed in this Technical Specification, calibration and correlation. The calibration process compares the output of an instrument to primary standards having known measurement characteristics. Correlation, in the context of this Technical Specification, is the degre
19、e of association between the quality control laboratory and the online sensor.20Online gauge users are looking to evaluate the capability (in a SPC “Statistical Process Control” sense) of their equipment. This is done usually through a measuring process which mixes a calibration process of the gauge
20、 itself, as presented in 4.1, and a correlation process with laboratory equipment, as presented in 4.2.The requirements for online measuring equipment and its measurement process in the context of paper and board manufacturing is discussed in 4.1. Usual acceptable tolerances for the instrument itsel
21、f and for the process to be measured are given.The gauge itself may regularly be verified automatically through a so-called “automatic standardization” or “internal standardization”. A “static calibration” often refers to an operation during which the gauge is removed from the moving web. A “dynamic
22、 calibration” often refers to an operation on the moving web, either in a fixed position or traversing.The requirements for periodic calibration procedures and for decision-making are given in 4.2. This type of verification is a correlation or a comparison between online and off-line measuring syste
23、m.Results of actions of either 4.1, or 4.2, or both, may lead to a physical “calibration adjustment” of the gauge sensor and constitutes the metrological comparability.Calculations of uncertainties are widely described in several ISO documents18and uncertainties linked to equipment are not within th
24、e scope of this Technical Specification.Properties such as formation, fibre orientation, optical roughness and air permeance are measured widely with online gauges. For these properties, ISO standards for laboratory equipment do not exist or international reference materials are not available, and t
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