1、Rubber-covered rollers Determination of apparent hardnessPart 3: Pusey and Jones methodBS ISO 7267-3:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06 ISO 2017Rubber-covered rollers Determination of apparent hardness Part 3: Pusey and Jones methodCylindres revtus
2、de caoutchouc Dtermination de la duret apparente Partie 3: Mthode Pusey et JonesINTERNATIONAL STANDARDISO7267-3Fourth edition2017-08Reference numberISO 7267-3:2017(E)National forewordThis British Standard is the UK implementation of ISO 7267-3:2017. It supersedes BS ISO 7267-3:2011, which is withdra
3、wn.The UK participation in its preparation was entrusted to Technical Committee PRI/22, Testing and analysis of rubber.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 cont
4、ract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 97192 1ICS 83.140.99Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the aut
5、hority of the Standards Policy and Strategy Committee on 30 September 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS ISO 7267-3:2017 ISO 2017Rubber-covered rollers Determination of apparent hardness Part 3: Pusey and Jones methodCylindres revtus de caoutchouc
6、 Dtermination de la duret apparente Partie 3: Mthode Pusey et JonesINTERNATIONAL STANDARDISO7267-3Fourth edition2017-08Reference numberISO 7267-3:2017(E)BS ISO 7267-3:2017ISO 7267-3:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in SwitzerlandAll rights reserv
7、ed. 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. Permission can be requested from either ISO
8、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.orgBS ISO 7267-3:2017ISO 7267-3:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT
9、PROTECTED DOCUMENT ISO 2017, 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
10、prior written permission. 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.orgISO 726
11、7-3:2017(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Time-interval between vulcanization/finished grinding and testing. 25 Conditioning and temperature of test 26 Apparatus . 27 Calibration 48 Procedure. 49 Expression of results 410 Test report . 4Annex
12、 A (normative) Calibration schedule . 6Bibliography 8 ISO 2017 All rights reserved iiiContents PageBS ISO 7267-3:2017ISO 7267-3:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing In
13、ternational 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 liaison
14、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 Directiv
15、es, 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 some o
16、f 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 declaratio
17、ns 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 voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessm
18、ent, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.This document was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee SC 2,
19、Testing and analysis.This fourth edition cancels and replaces the third edition (ISO 7267-3:2011), of which it constitutes a minor revision to update the normative references in Clause 2.A list of all parts in the ISO 7267 series can be found on the ISO website.iv ISO 2017 All rights reservedBS ISO
20、7267-3:2017ISO 7267-3:2017(E)ForewordISO (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 intereste
21、d 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 with the International Electrotechnical Com
22、mission (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 needed for the different types of ISO documents
23、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 rights. ISO shall not be held responsible for
24、 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 in this document is information given for the co
25、nvenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the T
26、echnical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.This document was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee SC 2, Testing and analysis.This fourth edition cancels and replaces the third edition (ISO 7267-3:2011), of whic
27、h it constitutes a minor revision to update the normative references in Clause 2.A list of all parts in the ISO 7267 series can be found on the ISO website.iv ISO 2017 All rights reserved ISO 7267-3:2017(E)IntroductionThe hardness of a roller covering has traditionally been determined on the finishe
28、d roller, since it is this hardness that is critical to the correct functioning of the roller in its end application. Values of hardness, determined by whichever method is chosen, are therefore dependent not only on the method employed and on the rubber, but also on the diameter of the roller, on th
29、e thickness of the covering and, in the case of thin coverings, on the nature of the roller core. For this reason the term “apparent hardness” is used to distinguish between the values obtained by the methods described in the various parts of this document and those that would be obtained for the ru
30、bber if it was possible to use the standard test methods for standard test pieces forming the subjects of other International Standards.Since rollers vary considerably in size, construction and end use, and in view of the fact that hardness determinations are made for such different purposes as spec
31、ification and factory process control, it has not been possible to standardize one test method. Consequently, three methods are described in the ISO 7267 series, each capable of standing alone. ISO 2017 All rights reserved vBS ISO 7267-3:2017Rubber-covered rollers Determination of apparent hardness
32、Part 3: Pusey and Jones methodWARNING 1 Persons using this document should be familiar with normal laboratory practice. This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and heal
33、th practices and to determine the applicability of any other restrictions.WARNING 2 Certain procedures specified in this document might involve the use or generation of substances, or the generation of waste, that could constitute a local environmental hazard. Reference should be made to appropriate
34、 documentation on safe handling and disposal after use.1 ScopeThis document specifies a method for the determination of the apparent hardness of vulcanized- or thermoplastic-rubber roller covers, expressed as the Pusey and Jones indentation value.The Pusey and Jones plastometer apparatus is used to
35、measure the depth of indentation of an indentor under a specified force into the surface of the rubber. The indentation value should not be confused with hardness as measured by the international rubber hardness test method ISO 48,1since in this method the rubber immediately adjacent to the indentor
36、 is precompressed. The Pusey and Jones indentation value is an inverse measurement of hardness, i.e. the harder the rubber the lower the Pusey and Jones indentation value.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constit
37、utes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 18899:2013, Rubber Guide to the calibration of test equipmentISO 23529, Rubber General procedures for
38、 preparing and conditioning test pieces for physical test methods3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: ISO Online browsing platform: avai
39、lable at http:/www.iso.org/obp IEC Electropedia: available at http:/www.electropedia.org/3.1Pusey and Jones indentation valuedepth of indentation of a ball 3,175 mm in diameter under a force of 9,8 NNote 1 to entry: It is expressed in hundredths of a millimetre.INTERNATIONAL STANDARD ISO 7267-3:2017
40、(E) ISO 2017 All rights reserved 1BS ISO 7267-3:2017Rubber-covered rollers Determination of apparent hardness Part 3: Pusey and Jones methodWARNING 1 Persons using this document should be familiar with normal laboratory practice. This document does not purport to address all of the safety problems,
41、if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to determine the applicability of any other restrictions.WARNING 2 Certain procedures specified in this document might involve the use or generation of substances, or the ge
42、neration of waste, that could constitute a local environmental hazard. Reference should be made to appropriate documentation on safe handling and disposal after use.1 ScopeThis document specifies a method for the determination of the apparent hardness of vulcanized- or thermoplastic-rubber roller co
43、vers, expressed as the Pusey and Jones indentation value.The Pusey and Jones plastometer apparatus is used to measure the depth of indentation of an indentor under a specified force into the surface of the rubber. The indentation value should not be confused with hardness as measured by the internat
44、ional rubber hardness test method ISO 48,1since in this method the rubber immediately adjacent to the indentor is precompressed. The Pusey and Jones indentation value is an inverse measurement of hardness, i.e. the harder the rubber the lower the Pusey and Jones indentation value.2 Normative referen
45、cesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) app
46、lies.ISO 18899:2013, Rubber Guide to the calibration of test equipmentISO 23529, Rubber General procedures for preparing and conditioning test pieces for physical test methods3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.ISO and IEC maintain term
47、inological databases for use in standardization at the following addresses: ISO Online browsing platform: available at http:/www.iso.org/obp IEC Electropedia: available at http:/www.electropedia.org/3.1Pusey and Jones indentation valuedepth of indentation of a ball 3,175 mm in diameter under a force
48、 of 9,8 NNote 1 to entry: It is expressed in hundredths of a millimetre.INTERNATIONAL STANDARD ISO 7267-3:2017(E) ISO 2017 All rights reserved 1 ISO 7267-3:2017(E)4 Time-interval between vulcanization/finished grinding and testingTests shall be carried out not less than 16 h after vulcanization and/
49、or finished grinding and, for arbitration purposes, not less than 72 h after vulcanization (see ISO 23529).5 Conditioning and temperature of testWhere possible, the test shall be carried out at standard laboratory temperature in accordance with ISO 23529. The product under test should be maintained under the test condition for sufficient time to reach temperature equilibrium with the test environment. Where this is impracticable, the period of time and the conditions shall be given in the produ
