1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Non-destructive testing of welds - Acceptance levels for radiographic testingPart 2: Aluminium and its alloys (ISO 10675-2:2017)BS EN ISO 10675-2:2017National forewordThis British Standard is the UK implementation of EN
2、 ISO 10675-2:2017. It is identical to ISO 10675-2:2017. It supersedes BS EN ISO 10675-2:2013, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee WEE/46, Non-destructive testing.A list of organizations represented on this committee can be obtained on reque
3、st to its secretary.This publication does not purport to 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 91539 0ICS 25.160.40Compliance with a British S
4、tandard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2017.Amendments/corrigenda issued since publicationDate Text affected BRITISH STANDARDBS EN ISO 10675-2:2017EUROPEAN STANDARDNO
5、RME EUROPENNEEUROPISCHE NORMEN ISO 10675-2November 2017ICS 25.160.40 Supersedes EN ISO 10675-2:2013EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN Ref. No. EN ISO 10675-2:2017:
6、 EAll rights of exploitation in any form and by any means reserved worldwide for CEN national MembersNon-destructive testing of welds - Acceptance levels for radiographic testing - Part 2: Aluminium and its alloys (ISO 10675-2:2017)Essais non destructifs des assemblages souds - Niveaux dacceptation
7、pour lvaluation par radiographie - Partie 2: Aluminium et ses alliages (ISO 10675-2:2017)Zerstrungsfreie Prfung von Schweiverbindungen - Zulssigkeitsgrenzen fr die Durchstrahlungsprfung - Teil 2: Aluminium und seine Legierungen (ISO 10675-2:2017)This European Standard was approved by CEN on 31 Octob
8、er 2017.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtai
9、ned on application to the CEN-CENELEC Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-
10、CENELEC Management Centre has the same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, I
11、taly, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.English VersionEN ISO 10675-2:2017 (E)European forewordThis document (EN ISO 10675-2:2017) has been prepared by Technical Comm
12、ittee ISO/TC 44 “Welding and allied processes” in collaboration with Technical Committee CEN/TC 121 “Welding and allied processes” the secretariat of which is held by DIN.This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorse
13、ment, at the latest by May 2018, and conflicting national standards shall be withdrawn at the latest by May 2018.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such pat
14、ent rights.This document supersedes EN ISO 10675-2:2013.According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Fin
15、land, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.Endorsement noticeThe te
16、xt of ISO 10675-2:2017 has been approved by CEN as EN ISO 10675-2:2017 without any modification.2BS EN ISO 10675-2:2017ISO 10675-2:2017(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Radiographic technique 15 General 26 Acceptance levels . 2Annex A (informative) Guide t
17、o the limitations of radiographic testing . 5Annex B (informative) Examples for determination of percentage (%) of imperfections . 6Annex C (informative) Sums of acceptable areas . 8Bibliography .10 ISO 2017 All rights reserved iiiContents PageBS EN ISO 10675-2:2017ISO 10675-2:2017(E)ForewordISO (th
18、e 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 interested in a subject for which a technical committ
19、ee 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 Commission (IEC) on all matters of electrotechn
20、ical 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 should be noted. This document was drafted i
21、n 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 identifying any or all such patent rights.
22、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 convenience of users and does not constitute a
23、n 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 Technical Barriers to Trade (TBT) see the fol
24、lowing URL: www.iso.org/iso/foreword.html.This document was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 5, Testing and inspection of welds.This second edition cancels and replaces the first edition (ISO 10675-2:2010), of which it constitutes a minor revis
25、ion and contains the following main changes: the normative references have been updated; Table 1 has been split into two separate tables.Request for official interpretations of any aspect of this document should be directed to the Secretariat of ISO/TC 44/SC 5 via your national standards body. A com
26、plete listing of these bodies can be found at www.iso.org. iv ISO 2017 All rights reservedBS EN ISO 10675-2:2017Non-destructive testing of welds - Acceptance levels for radiographic testing Part 2: Aluminium and its alloys (ISO 10675-2:2017)1 ScopeThis document specifies acceptance levels for indica
27、tions from imperfections in aluminium butt welds detected by radiographic testing. If agreed, the acceptance levels can be applied to other types of welds or materials.The acceptance levels can be related to welding standards, application standards, specifications or codes. This document assumes tha
28、t the radiographic testing has been carried out in accordance with ISO 17636-1 for RT-F (F = film) or ISO 17636-2 for RT-S (S = radioscopy) and RT-D (D = digital detectors).When assessing whether a weld meets the requirements specified for a weld quality level, the sizes of imperfections permitted b
29、y standards are compared with the dimensions of indications revealed by a radiograph made of the weld.2 Normative referencesThe 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 ed
30、ition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 6520-1, Welding and allied processes Classification of geometric imperfections in metallic materials Part 1: Fusion weldingISO 10042, Welding Arc-welded joints in alumini
31、um and its alloys Quality levels for imperfectionsISO 17636-1, Non-destructive testing of welds Radiographic testing Part 1: X- and gamma-ray techniques with filmISO 17636-2, Non-destructive testing of welds Radiographic testing Part 2: X- and gamma-ray techniques with digital detectors3 Terms and d
32、efinitionsNo terms and definitions are listed in this document.ISO and IEC maintain terminological 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/ 4 Radiograph
33、ic techniqueDepending on the weld quality level, radiographic technique A or B in accordance with ISO 17636-1 shall be used for RT-F as shown in Table 1 and radiographic technique A or B in accordance with ISO 17636-2 shall be used for RT-S or RT-D as shown in Table 2.INTERNATIONAL STANDARD ISO 1067
34、5-2:2017(E) ISO 2017 All rights reserved 1BS EN ISO 10675-2:2017ISO 10675-2:2017(E)Table 1 Radiographic testing for RT-FQuality levels in accordance with ISO 10042Testing techniques and classes in accordance withISO 17636-1for RT-FaAcceptance levels in accordance with this documentB B 1C Ba,b2D A 3a
35、RT-F = Radiographic testing with filmbHowever, the minimum number of exposure for circumferential weld testing may correspond to the requirements of class A of ISO 17636-1.Table 2 Radiographic testing for RT-S and RT-DQuality levels in accordance with ISO 10042Testing techniques and classes in accor
36、dance withISO 17636-2for RT-Saand RT-DbAcceptance levels in accordance with this documentB B 1C Bc2D A 3aRT-S = Radioscopic testingbRT-D = Radiographic testing with digital detectorscHowever, the minimum number of exposure for circumferential weld testing may correspond to the requirements of class
37、A of ISO 17636-2.5 GeneralWelded joints should be visually tested in accordance with ISO 17637 and evaluated before radiographic testing.The acceptance levels in this document are basically valid for evaluation of imperfections which cannot be detected and evaluated by visual testing (see Table 3).
38、Surface imperfections (see Table 4; such as undercut and excessive penetration, surface damage, weld spatter, etc.) which due to object geometry cannot be evaluated, but where the interpreter suspects the ISO 10042 quality levels are not fulfilled, shall be subject to more specific testing.When quan
39、tification of undercut and/or excessive penetration by radiographic testing is required, specific procedures using test exposures may be applied in order to establish a basis for approximate quantification in accordance with the requirements of ISO 10042. This shall be specified.6 Acceptance levelsT
40、he acceptance levels for indications are shown in Table 3 and Table 4. The types of imperfections are selected from ISO 10042 and defined in ISO 6520-1.The symbols used in Table 3 and Table 4 are the following:A is the sum of projected areas of indications related to L wpin %;b is the width of exces
41、s penetration of weld, in millimetres;d is the diameter of pore, in millimetres;dAis the diameter of area surrounding a cluster, in millimetres;2 ISO 2017 All rights reservedBS EN ISO 10675-2:2017ISO 10675-2:2017(E)h is the width of indication, the width or height of surface or cross surface imperfe
42、ction, in millimetres;l is the length of indication, in millimetres;L any 100 mm testing length, in millimetres;s is the nominal butt weld thickness, in millimetres;t is the material thickness, in millimetres;wpis the width of the weld, in millimetres;l is the summary length of imperfections within
43、L.Any two adjacent imperfections separated by a distance smaller than the major dimension of the smaller imperfection shall be considered as a single imperfection.Indications shall not be divided into different ranges L.Table 3 Acceptance levels for indications in butt weldsNo.Type of internal imper
44、fections in accordance with ISO 6520-1Acceptance level 3aAcceptance level 2aAcceptance level 11 Cracks (100) Not permitted Not permitted Not permitted2a Gas pores (2011) d 0,4s, max. 6 mm d 0,3s, max. 5 mm d 0,2s, max. 4 mm2b Porosity (2012)material thickness 0,5 mm to 3 mmA 6 %L = 100 mmA 2 %L = 10
45、0 mmA 1 %L = 100 mm2c Porosity (2012)material thickness 3 mm to 12 mmA 10 %L = 100 mmA 4 %L = 100 mmA 2 %L = 100 mm2d Porosity (2012)material thickness 12 mm to 30 mmA 15 %L = 100 mmA 6 %L = 100 mmA 3 %L = 100 mm2e Porosity (2012)material thickness 30 mmA 20 %L = 100 mmA 8 %L = 100 mmA 4 %L = 100 mm
46、3bClustered (localized) porosity (2013)dA 25 mm ord A,max w pdA 20 mm ord A,max w pdA 15 mm ord A,max w p/24cLinear porosity (2014) l 25 mmL = 100 mmNot permitted Not permitted5dElongated cavities (2015)and wormholes (2016)l 0,4s, max. 6 mm l d A2Figure C.2 Clustered porosity, D = d A2The sum of the
47、 different pore areas (A 1+ A 2) related to the evaluation area, L w p(Figure C.1).If D is less than d A1or d A2, whatever is smaller, an envelope surrounding the porosity area, A 1+ A 2, shall be considered as one area of imperfection (Figure C.2).Figure C.3 Linear porosity, D d 28 ISO 2017 All rig
48、hts reservedBS EN ISO 10675-2:2017ISO 10675-2:2017(E)Figure C.4 Linear porosity, D = d 2The sum of the different pore areas dd122244+pipi. related to the evaluation area, L w p(Figure C.3).If D is smaller than the smaller diameter of one of the neighbouring pores, the full connected area of the two
49、pores is to be taken into the sum of imperfections (Figure C.4).Figure C.5 Elongated cavities and wormholes, D l 3Figure C.6 Elongated cavities and wormholes, D = l 3The sum of the length of indications, l, shall be determined for each testing length, L (Figure C.5).If D is smaller than the shorter length of one of the neighbouring imperfections, the full connection of the two imperfections is to be taken into the sum of imperfections (Figure C.6). ISO 20
