BS ISO 2284-2017 Hand taps for parallel and taper pipe threads General dimensions and marking《并联和锥形管螺纹手用丝锥 通用尺寸和标记》.pdf
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1、BS ISO 2284:2017Hand taps for parallel andtaper pipe threads Generaldimensions and markingBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 2284:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 2284:2017. It supersedes
2、BS 949-3:1993 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee MTE/18, Tools tips and inserts for cutting applications.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport t
3、o include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017.Published by BSI Standards Limited 2017ISBN 978 0 580 90907 8 ICS 25.100.50Compliance with a British Standard cannot confer immunity from legal obligations.
4、This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2017.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 2284:2017 ISO 2017Hand taps for parallel and taper pipe threads General dimensions and markingTarau
5、ds main pour filetages cylindrique et conique de tuyauterie Dimensions gnrales et marquageINTERNATIONAL STANDARDISO2284Fourth edition2017-02Reference numberISO 2284:2017(E)BS ISO 2284:2017ISO 2284:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in SwitzerlandAl
6、l 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. Permission can be requested f
7、rom 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.orgBS ISO 2284:2017ISO 2284:2017(E)Foreword iv1 Scope . 12 Normat
8、ive references 13 Terms and definitions . 14 General dimensions. 15 Marking 2Annex A (informative) Bases for calculation of the dimensions 5Annex B (informative) Relationship between designations in this document and the ISO 13399 series . 6Bibliography 7 ISO 2017 All rights reserved iiiContents Pag
9、eBS ISO 2284:2017ISO 2284:2017(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 inter
10、ested 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
11、 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 needed for the different types of ISO docume
12、nts 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 responsi
13、ble 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 in this document is information given
14、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, as well as information about ISOs adherence to the World Trade Organization (WTO) principle
15、s 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 29, Small tools, Subcommittee SC 9, Tools with defined cutting edges, cutting items.This fourth edition cancels and replaces the third edition
16、 (ISO 2284:1987), of which it constitutes a minor revision with the following changes: added Annex B giving the relationship between the symbols of this document and the symbols according to the ISO 13399 series.iv ISO 2017 All rights reservedBS ISO 2284:2017INTERNATIONAL STANDARD ISO 2284:2017(E)Ha
17、nd taps for parallel and taper pipe threads General dimensions and marking1 ScopeThis document specifies the general dimensions and marking of hand taps for pipe threads.It is applicable to the two following types of tap: taps for parallel threads (see Figure 1 and Table 1), taps for taper threads (
18、see Figure 2 and Table 2),having threads in accordance with ISO 7-1 and ISO 228-1.Furthermore, it gives in Annex A the bases used for calculation of the dimensions, and in Annex B the relationship between designations in this document and the ISO 13399 series.2 Normative referencesThe following docu
19、ments 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) applies.ISO 237, Rotatin
20、g tools with parallel shanks Diameters of shanks and sizes of driving squaresISO 5969, Ground thread taps for pipe threads G series and Rp series Tolerances on the threaded portion3 Terms and definitionsNo terms and definitions are listed in this document.ISO and IEC maintain terminological database
21、s for use in standardization at the following addresses: IEC Electropedia: available at h t t p :/ www .electropedia .org/ ISO Online browsing platform: available at h t t p :/ www .iso .org/ obp4 General dimensionsThe general dimensions are given in Table 1 and Table 2.Shank diameters and driving s
22、quares shall conform to the specifications given in ISO 237, the tolerances being as follows: on diameter, d1:h9 for precision shanks;h11 for other shanks; on width across flats, a:h11;h12 (including errors of form of the square and of its position in relation to the shank). ISO 2017 All rights rese
23、rved 1BS ISO 2284:2017ISO 2284:2017(E)5 MarkingTaps in accordance with this document and with the requirements of ISO 5969 shall be marked, on the shank, with the following indications:a) the letter designating the thread series;b) the designation of the thread.A G series parallel thread tap with de
24、signation 3/4 shall be marked as follows:G 3/4An Rp series parallel thread tap with designation 1/4 shall be marked as follows:Rp 1/4An Rc series taper thread tap with designation 1 shall be marked as follows:Rc 1Where tools comply in all respects with the relevant International Standards, the symbo
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