1、BRITISH STANDARD BS ISO 21949:2001 Coated abrasives Plain sheets with holes for dust extraction ICS 25.100.70 BS ISO 21949:2001 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 12 October 2004 BSI 12 October 2004 ISBN 0 580 44577 1 National fo
2、reword This British Standard reproduces verbatim ISO 21949:2001 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee MTE/13, Grinding wheels, abrasive tools, paper, cloths and powders, which has the responsibility to: A list of o
3、rganizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence
4、Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself
5、confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and prom
6、ulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii and iii, a blank page, pages 1 to 5 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued
7、since publication Amd. No. Date CommentsReference number ISO 21949:2001(E) INTERNATIONAL STANDARD ISO 21949 First edition 2001-04-01 Coated abrasives Plain sheets with holes for dust extraction Produits abrasifs appliqus Feuilles simples avec trous pour extraction de la poussire BSISO21949:2001ISO 9
8、4912:(1002)E DPF dlcsiremia ihTs PDF file mya ctnoain emdeddeb tyfepcaes. In acccnadroe with Aebods licnesign lopic,y this file may be pirntde ro ivwede tub slahl ton eb ideted lnuess teh tyfepacse which aer emdeddeb era licnesed to dna intslaled on teh computre freporming teh idetign. In wodlnidaog
9、n this f,eli trapies accept tniereh teh sersnoptilibiy of ton nifrgnigni Asebod licsnegni ilopcy. ehT ISO tneClar Secteraairt accepts no lilibaity ni this .aera Aebod is a tedarmakr fo Aebod Stsyems Icntaropro.de teDails fo the sfotwera pcudorts sude to crtaee tihs PFD file can be fdnuo in the Glare
10、ne Info leratiev to the fil;e the Pc-FDaertion arapmteres were tpoimizde for pirtning. Evyre cera sah neeb taken to enseru taht teh file is suitlbae fro sue by ISO memreb idob.se In teh lnuikley etnev ttah a plborem leratign to it is f,dnuo lpsaee ifnrom teh tneClar Sceterairat at the sserdda givne
11、lebwo. ISO 1002 All rhgits rsevre.de elnUss towrehise scepfidei, on trap of tihs cilbuptanoi mya eb cudorperde ro utzilide ni yna form ro yb yna snaem, eelctinorc ro mecinahcal, inclidugn tohpociypong dna micrfoilm, wittuoh repmissino in writing form eitreh ISO at teh erddass lebwo ro ISOs memreb yd
12、ob in the ctnuoyr of the rtseuqee.r ISO cirypothg fofice saCe tsopale 65 1121-HC aveneG 20 leT. + 41 22 947 10 11 xaF + 14 22 947 90 74 E-mail cirypothgiso.ch eWb www.iso.ch ii ISO 1002 All irhgts seredevr BSISO21949:2001ISO 94912:(1002)E ISO 1002 All rights rsedevre iii Foreword ISO (the Internatio
13、nal 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 interested in a subject for which a technical committee has been
14、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 Commission (IEC) on all matters of electrotechnical standar
15、dization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least
16、 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 21949 was prepare
17、d by Technical Committee ISO/TC 29, Small tools, Subcommittee SC 5, Grinding wheels and abrasives. BSISO21949:2001blank 1002:94912OSISBINTENRATIONAL TSANDADR ISO 94912:(1002)E ISO 1002 All rights rsedevre 1 Coated abrasives Plain sheets with holes for dust extraction 1 Scope This International Stand
18、ard specifies the nominal dimensions, tolerances and designation of the active surface of plain sheets with holes for dust extraction. Extra length has to be taken into account in this International Standard. Plain sheets with holes for dust extraction in accordance with this International Standard
19、are intended for use on sanders with dust extraction. 2 Normative reference The following normative document contains provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these
20、publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent edition of the normative document indicated below. For undated references, the latest edition of the normative document referred to
21、 applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 554:1976, Standard atmospheres for conditioning and/or testing Specifications. 3 Requirements 3.1 Types and dimensions S e eFi gu re s1to7an dTa b l e1. Figure 1 Type A sheet Figure 2 Type B sheet BSI
22、SO21949:2001ISO 94912:(1002)E 2 ISO 1002 All rights rsedevre Figure 3 Type C sheet Figure 4 Type D sheet Figure 5 Type E sheet Figure 6 Type F sheet Figure 7 Type G sheet BSISO21949:2001ISO 94912:(1002)E ISO 1002 All rights rsedevre 3 Table 1 Dimensions Dimensions in millimetres Size T 1 L 1 L 2 L 3
23、 L 4 L 5 L 6 L 7 L 8 HT 2 T 3 T 4 1,5 Type T 1 L 1 0,5 0,5 0,5 0,5 0,5 0,5 0,5 0,5 0,5 0,5 0,5 Number of holes 115 280 140 A 115 230 115 37 74 94,5 10 57,5 18,5 40 14 115 280 140 B 115 225 112,5 37 74 10 57,5 40 10 93 230 115 93 186 93 22,5 56 46,5 35 80 166 83 80 130 65 19 48 40 30 C 70 198 99 29 7
24、2 10 35 23 8 93 230 115 93 186 93 47 68 46,5 31 8 D 115 280 140 21 63 90 10 57,5 38 10 E 115 115 57,5 15 45 10 57,5 15 45 12 F 70 465 232,5 64 130 173 10 35 12 14 70 127 100 74 48 22 35 24 8 81 153 106 81 56 31 40,5 25,5 8 G 70 418 393 350 283 219 155 88 45 10 35 23 14 3.2 Test conditions The limit
25、deviations given in Table 1 are valid under the following conditions: Temperature: 20 C 2 C Relative humidity: 65 % 5% in accordance with ISO 554 When plain sheets are tested they shall be stored for at least 24 h under the above conditions. 4 Designation A plain sheet conforming to this Internation
26、al Standard shall be designated by a) “Plain sheet”; b) reference to this International Standard, i.e. ISO 21949; c) type A, B, C, D, E, F or G; d) dimensions T 1 L 1 (size), in millimetres. BSISO21949:2001ISO 94912:(1002)E 4 ISO 1002 All rights rsedevre EXAMPLE A plain sheet of Type A with a dimens
27、ions T 1 = 115 mm and L 1 = 280 mm is designated as follows: Plain sheet ISO 21949 A 115 280 5 Marking Plain sheets with holes for dust extraction shall be marked with a) grain size; b) manufacturer, supplier, importer or their registered trademark. BSISO21949:2001ISO 94912:(1002)E ISO 1002 All righ
28、ts rsedevre 5 Bibliography 1 ISO 6344-1:1998, Coated abrasives Grain size analysis Part 1: Grain size distribution test. 2 ISO 6344-2:1998, Coated abrasives Grain size analysis Part 2: Determination of grain size distribution o fm a crog ri tsP1 2toP2 20 . 3 ISO 6344-3:1998, Coated abrasives Grain s
29、ize analysis Part 3: Determination of grain size distribution of microgrits P240 to P2500. BSISO21949:2001BS ISO 21949:2001 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK
30、view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve
31、 the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fa
32、x: +44 (0)20 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services.
33、 Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: ordersbsi-. Standards are also available from the BSI website at http:/www.bsi-. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, un
34、less otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its
35、products and services. Contact the Information Centre. Tel: +44 (0)20 8996 7111. Fax: +44 (0)20 8996 7048. Email: infobsi-. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other
36、benefits contact Membership Administration. Tel: +44 (0)20 8996 7002. Fax: +44 (0)20 8996 7001. Email: membershipbsi-. Information regarding online access to British Standards via British Standards Online can be found at http:/www.bsi- Further information about BSI is available on the BSI website at
37、 http:/www.bsi-. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval s
38、ystem or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. Details and advice can be obtained from the Copyright & Licensing Manager. Tel: +44 (0)20 8996 7070. Fax: +44 (0)20 8996 7553. Email: copyrightbsi-.
