1、Rubber-covered rollers Determination of apparent hardness Part 3: Pusey and Jones method BS ISO 7267-3:2017 BSI Standards Publication WB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06 ISO 2017 Rubber-covered rollers Determination of apparent hardness Part 3: Pusey and Jones method Cylindres r
2、evtus de caoutchouc Dtermination de la duret apparente Partie 3: Mthode Pusey et Jones INTERNATIONAL STANDARD ISO 7267-3 Fourth edition 2017-08 Reference number ISO 7267-3:2017(E) National foreword This British Standard is the UK implementation of ISO 7267-3:2017. It supersedes BS ISO 7267-3:2011, w
3、hich is withdrawn. 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 pr
4、ovisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017 ISBN 978 0 580 97192 1 ICS 83.140.99 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was p
5、ublished under the authority of the Standards Policy and Strategy Committee on 30 September 2017. Amendments/corrigenda issued since publication Date Text affected BRITISH STANDARD BS ISO 7267-3:2017 ISO 2017 Rubber-covered rollers Determination of apparent hardness Part 3: Pusey and Jones method Cy
6、lindres revtus de caoutchouc Dtermination de la duret apparente Partie 3: Mthode Pusey et Jones INTERNATIONAL STANDARD ISO 7267-3 Fourth edition 2017-08 Reference number ISO 7267-3:2017(E) BS ISO 7267-3:2017 ISO 7267-3:2017(E)ii ISO 2017 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2017, Pub
7、lished 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. Permi
8、ssion 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 BS ISO 7267-3:2017 ISO 7267-3:
9、2017(E)ii ISO 2017 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2017, Published 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, o
10、r posting on the internet or an intranet, without 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 office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11
11、 Fax +41 22 749 09 47 copyrightiso.org www.iso.orgISO 7267-3:2017(E)Foreword iv Introduction v 1 Scope . 1 2 Normative references 1 3 T erms and definitions . 1 4 Time-int erv al betw een vulcanization/finished grinding and t esting.2 5 C onditioning and t emper atur e of t est 2 6 Apparatus . 2 7 C
12、alibration 4 8 Procedure. 4 9 Expression of results 4 10 Test report . 4 Annex A (normative) Calibration schedule . 6 Bibliogr aph y 8 ISO 2017 All rights reserved iii Contents Page BS ISO 7267-3:2017 ISO 7267-3:2017(E) Foreword ISO (the International Organization for Standardization) is a worldwide
13、 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 interested in a subject for which a technical committee has been established has the right to be represented on that
14、committee. International organizations, governmental and 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. The procedures used to develop this docume
15、nt 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 should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives
16、, 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 identifying any or all such patent rights. Details of any patent rights identified during the development
17、 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 convenience of users and does not constitute an endorsement. For an explanation on the voluntary nature of
18、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 Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html. This document was
19、 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 which it constitutes a minor revision to update the normative references in Clause 2. A list of all parts
20、in the ISO 7267 series can be found on the ISO website.iv ISO 2017 All rights reserved BS ISO 7267-3:2017 ISO 7267-3:2017(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Internation
21、al 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 with ISO,
22、 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 Directives, Part
23、 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 of the e
24、lements 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 declarations rece
25、ived (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 assessment,
26、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, Test
27、ing 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 reserved ISO 7267
28、-3:2017(E) Introduction The hardness of a roller covering has traditionally been determined on the finished 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
29、dependent not only on the method employed and on the rubber, but also on the diameter of the roller, on the 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
30、by the methods described in the various parts of this document and those that would be obtained for the rubber 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
31、 end use, and in view of the fact that hardness determinations are made for such different purposes as specification 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.
32、 ISO 2017 All rights reserved v BS ISO 7267-3:2017 Rubber-covered rollers Determination of apparent hardness Part 3: Pusey and Jones method WA R N I N G 1 Pe r s on s using t his do c u ment s hou ld be familiar w it h nor m a l l a b or at or y pr ac t ic e . This document does not purport to addre
33、ss all of the safety problems, if any, associated with its u se . It is t he r e s p on s ibi l i t y of t he u s er to e st a b lis h appr opr i at e saf e t y a nd he a l t h pr ac t ic e s a nd to de t er m i ne t he appl ic a bi l i t y of a ny ot her r e s t r ic t ion s . WA R N I N G 2 C er t
34、 a i n p ro c ed ure s s p e c i f ie d in t his do c u ment m i g ht i nvol ve t he u se or g en er a t i o n of s ub s t a nc e s , or t he g en er a t i o n of waste , t h at c ou ld c on s t i t u t e a lo c a l en v i r o n men t a l h azard. R ef er en c e s hou ld be m ade to appr opr i at e
35、do c u ment at ion on s a fe han d ling a nd disp o sa l a f t er u se . 1 Scope This 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 a
36、pparatus 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 international rubber hardness test method ISO 48, 1since in this method the rubber immediately adj
37、acent 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 references The following documents are referred to in the text in such a way that some or all o
38、f 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) applies. ISO 18899:2013, Rubber Guide to the calibration of test equipment ISO 23529, Rubb
39、er General procedures for preparing and conditioning test pieces for physical test methods 3 T erms an d definiti ons For 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
40、 Online browsing platform: available at http:/ /www.iso.org/obp IEC Electropedia: available at http:/ /www.electropedia.org/ 3 .1 Pusey and Jones indentation value depth of indentation of a ball 3,175 mm in diameter under a force of 9,8 N Note 1 to entry: It is expressed in hundredths of a millimetr
41、e. INTERNATIONAL ST ANDARD ISO 7267-3:2017(E) ISO 2017 All rights reserved 1 BS ISO 7267-3:2017 Rubber-covered rollers Determination of apparent hardness Part 3: Pusey and Jones method WA R N I N G 1 Pe r s on s using t his do c u ment s hou ld be familiar w it h nor m a l l a b or at or y pr ac t i
42、c e . This document does not purport to address all of the safety problems, if any, associated with its u se . It is t he r e s p on s ibi l i t y of t he u s er to e st a b lis h appr opr i at e saf e t y a nd he a l t h pr ac t ic e s a nd to de t er m i ne t he appl ic a bi l i t y of a ny ot her
43、 r e s t r ic t ion s . WA R N I N G 2 C er t a i n p ro c ed ure s s p e c i f ie d in t his do c u ment m i g ht i nvol ve t he u se or g en er a t i o n of s ub s t a nc e s , or t he g en er a t i o n of waste , t h at c ou ld c on s t i t u t e a lo c a l en v i r o n men t a l h azard. R ef er
44、 en c e s hou ld be m ade to appr opr i at e do c u ment at ion on s a fe ha n d ling a nd disp o sa l a f t er u se . 1 Scope This document specifies a method for the determination of the apparent hardness of vulcanized- or thermoplastic-rubber roller covers, expressed as the Pusey and Jones indent
45、ation 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 international rubber hardness test method ISO 48, 1s
46、ince 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 references The following documents are referred t
47、o 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) applies. ISO 18899:2013, Rubber Guide to the
48、 calibration of test equipment ISO 23529, Rubber General procedures for preparing and conditioning test pieces for physical test methods 3 T erms an d definiti ons For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain terminological databases for use in s
49、tandardization at the following addresses: ISO Online browsing platform: available at http:/ /www.iso.org/obp IEC Electropedia: available at http:/ /www.electropedia.org/ 3 .1 Pusey and Jones indentation value depth of indentation of a ball 3,175 mm in diameter under a force of 9,8 N Note 1 to entry: It is expressed in hundredths of a millimetre. INTERNATIONAL ST ANDARD ISO 7267-3:2017(E) ISO 2017 All rights reserved 1 ISO 7267-3:2017(E) 4 Ti me-int erv al betw een vulcanization/finis
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