BS ISO 4993-2015 Steel and iron castings Radiographic testing《钢铁铸件 X光线照相术检验》.pdf
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1、BSI Standards PublicationBS ISO 4993:2015Steel and iron castings Radiographic testingBS ISO 4993:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 4993:2015. It supersedes BS ISO 4993:2009 which is withdrawn.The UK participation in its preparation was entrus
2、ted to Technical Committee ISE/111, Steel Castings and Forgings.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 contract. Users are responsible for its correct application
3、. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 76495 0 ICS 77.040.20; 77.140.80 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strateg
4、y Committee on 30 September 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 4993:2015 ISO 2015Steel and iron castings Radiographic testingPices moules en acier ou en fonte Contrle radiographiqueINTERNATIONAL STANDARDISO4993Third edition2015-09-15Reference number
5、ISO 4993:2015(E)BS ISO 4993:2015ISO 4993:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT 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 o
6、r mechanical, including photocopying, or 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 officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Genev
7、a, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 4993:2015ISO 4993:2015(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Basis of purchase 15 General 25.1 Protection against ionizing radiation 25.2 General requirements
8、 . 26 Testing parameters 27 Personnel qualifications. 38 Testing arrangements . 39 Film position plan . 39.1 Film position plan for pilot radiography 39.2 Film position plan for production radiography 310 Rejection/acceptance criteria 411 Foundry responsibility . 4Annex A (normative) Examination arr
9、angements . 5Annex B (informative) Techniques for increasing the covered thickness range .11Annex C (informative) Choice of radiation source .14 ISO 2015 All rights reserved iiiContents PageBS ISO 4993:2015ISO 4993:2015(E)ForewordISO (the International Organization for Standardization) is a worldwid
10、e 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
11、 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
12、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
13、, 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
14、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 meaning of ISO specific
15、 terms and expressions related to conformity assessment, as well as information 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 17, Steel, Subcommitte
16、e SC 11, Steel castings.This third edition cancels and replaces the second edition (ISO 4993:2009), which has been technically revised with the following changes: Clause 12 has been deleted; B.3, B.4, B.5: ISO 5579 has been added; C.3, “light alloys and copper”, has been deleted.iv ISO 2015 All righ
17、ts reservedBS ISO 4993:2015ISO 4993:2015(E)IntroductionRadiography can be used to detect internal discontinuities in castings. The discontinuities can have higher or lower densities than the parent metal. ISO 2015 All rights reserved vBS ISO 4993:2015BS ISO 4993:2015Steel and iron castings Radiograp
18、hic testing1 ScopeThis International Standard specifies the general requirements for the radiography of steel and iron castings by means of X-rays or gamma-rays, in accordance with procedures given in ISO 5579 and ISO 19232.2 Normative referencesThe following documents, in whole or in part, are norm
19、atively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 5579, Non-destructive testing Radiographic testing of meta
20、llic materials using film and X- or gamma rays Basic rulesISO 19232-1, Non-destructive testing Image quality of radiographs Part 1: Determination of the image quality value using wire-type image quality indicatorsISO 19232-2, Non-destructive testing Image quality of radiographs Part 2: Determination
21、 of the image quality value using step/hole-type image quality indicatorsISO 19232-3, Non-destructive testing Image quality of radiographs Part 3: Image quality classesISO 19232-4, Non-destructive testing Image quality of radiographs Part 4: Experimental evaluation of image quality values and image
22、quality tablesISO 19232-5, Non-destructive testing Image quality of radiographs Part 5: Determination of the image unsharpness value using duplex wire-type image quality indicatorsASTM E186, Standard Reference Radiographs for Heavy-Walled (2 to 4 1/2 in. 50.8 to 114 mm) Steel CastingsASTM E192, Stan
23、dard Reference Radiographs for Investment Steel Castings for Aerospace ApplicationsASTM E280, Standard Reference Radiographs for Heavy-Walled (4 1/2 to 12 in. 114 to 305 mm) Steel CastingsASTM E446, Standard Reference Radiographs for Steel Castings up to 2 in. (50.8 mm) in ThicknessASTM E689, Standa
24、rd Reference Radiographs for Ductile Iron CastingsASTM E802, Standard Reference Radiographs for Gray Iron Castings up to 4 1/2 in. (114 mm) in ThicknessASTM E2660, Standard Digital Reference Images for Investment Steel Castings for Aerospace Applications3 Terms and definitionsFor the purposes of thi
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