1、Non destructive testing of welded joints of thermoplastics semi-finished productsPart 1: Visual examinationBS EN 131001:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06National forewordThis British Standard is the UK implementation of EN 131001:2017. It supersede
2、s BS EN 131001:2000, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PRI/80, Welding thermoplastics.A list of organizations represented on this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 n
3、ecessary 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 89660 6ICS 25.160.40Compliance with a British Standard cannot confer immunity from legal obligations. This British Standa
4、rd was published under the authority of the Standards Policy and Strategy Committee on 30 June 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 131001:2017EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 131001May 2017ICS 25.160.40 Supersedes EN 131001:1999
5、EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCENCENELEC Management Centre: Avenue Marnix 17, B1000 Brussels 2017 CEN Ref. No. EN 131001:2017: EAll rights of exploitation in any form and by any means reserved worldwide for CEN national MembersNon d
6、estructive testing of welded joints of thermoplastics semifinished products Part 1: Visual examinationContrle non destructif des assemblages souds sur produits semi-finis en thermoplastiques Partie 1 : Contrle visuelZerstrungsfreie Prfung von Schweiverbindungen an Halbzeugen aus thermoplastischen Ku
7、nststoffen Teil 1: SichtprfungThis European Standard was approved by CEN on 10 March 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. Uptodate list
8、s and bibliographical references concerning such national standards may be obtained on application to the CENCENELEC 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 th
9、e responsibility of a CEN member into its own language and notified to the CEN-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 Yugosl
10、av 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 United Kingdom.English VersionEN 131001:2017 (E)European forew
11、ord 31 Scope . 42 Normative references 43 Test conditions and equipment . 44 Personnel . 45 Visual examination . 45.1 General . 45.2 Visual examination of joint preparation . 55.3 Visual examination during welding 55.4 Visual examination of the finished weld . 55.5 Visual examination of repaired wel
12、ds . 56 Test report . 5Bibliography 72Contents PageBS EN 131001:2017EN 131001:2017 (E)European forewordThis document (EN 13100-1:2017) has been prepared by Technical Committee CEN/TC 249 “Plastics”, the secretariat of which is held by NBN.This European Standard shall be given the status of a nationa
13、l standard, either by publication of an identical text or by endorsement, at the latest by November 2017, and conflicting national standards shall be withdrawn at the latest by November 2017.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
14、 rights. CEN shall not be held responsible for identifying any or all such patent rights.This document supersedes EN 131001:1999.EN 13100, “Non destructive testing of welded joints of thermoplastics semi-finished products “, is currently composed with the following parts: Part 1: Visual examination;
15、 Part 2: X-ray radiographic testing; Part 3: Ultrasonic testing; Part 4: High voltage testing.According to the CENCENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus,
16、Czech Republic, Denmark, Estonia, Finland, 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 Un
17、ited Kingdom.3BS EN 131001:2017EN 131001:2017 (E)1 ScopeThis European standard covers the visual examination of welds in thermoplastic materials. It may also be applied to visual testing of the joint prior to and during the welding.2 Normative referencesThe following documents, in whole or in part,
18、are normatively 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.EN 14728, Imperfections in thermoplastic welds Classif
19、icationEN 16296, Imperfections in thermoplastics welded joints Quality levelsEN ISO 17637:2016, Non-destructive testing of welds Visual testing of fusion-welded joints (ISO 17637:2016)EN ISO 17659, Welding Multilingual terms for welded joints with illustrations (ISO 17659)3 Test conditions and equip
20、mentThe illuminance at the surface, shall be a minimum of 350 lx, 500 lx is recommended.For direct visual examination of welds, access shall be sufficient to allow the eye to be placed within a distance of 600 mm from the weld, around the whole weld and the viewing angle shall not be less than 30.Re
21、mote visual examination of welds using mirrors, boroscopes, fibre optics or cameras shall be considered as additional requirements and shall be specified by an application standard or by agreement between the contracting parties.If a good contrast and relief effect between imperfections and backgrou
22、nd is required, an additional light source can be used.The equipment (e.g.: gauges, callipers) used for the dimensional check of the weld shall ensure the necessary precision level, in accordance with the applicable acceptance criteria.Examples of examination equipment are given in EN ISO 17637:2016
23、, Annex A.4 PersonnelVisual examination of welds and the evaluation of results for final acceptance should be performed by personnel qualified and familiar with the relevant standards, rules, specifications and the welding procedure 1 used.It is recommended that personnel should be qualified in acco
24、rdance with EN ISO 9712 or an equivalent standard at an appropriate level in the relevant industry sector.5 Visual examination5.1 GeneralThe examination is normally performed on welds in the aswelded condition; however, for example when required by an application standard or by agreement between the
25、 contracting parties, the examination may be also carried out at other stages during the welding process, such as for checking the weld preparation and during the welding, for evaluating the effective application of the relevant welding procedure specification 1.4 BS EN 131001:2017EN 131001:2017 (E)
26、The extent of examination and the acceptance criteria of the imperfections shall be defined in advance by EN 16296, an application standard or by agreement between the contracting parties.The examiner shall have access to the necessary inspection and production documentation required.The classificat
27、ion of the imperfections can be found in EN 14728.The terms to be used are available in EN ISO 17659.5.2 Visual examination of joint preparationWhen visual examination is required prior to welding, the joint preparation shall be examined to check that the shape, dimensions and the cleaning condition
28、s of the weld preparation meet the specified requirements given in the relevant standards and/or in the applicable welding procedure specification 1.During this examination special attention should be paid to the correct fixing of the parts to be welded (e.g.: linear and angular alignment, gap).5.3
29、Visual examination during weldingWhen required, in the case of multipass welding processes, the weld shall be examined during the welding process to check that:a) each run is cleaned and/or scraped before it is covered by subsequent runs;b) there are no visible imperfections (such as cracks or cavit
30、ies), if imperfections are observed, they shall be reported immediately so that remedial action can be taken before the execution of the next run;c) the transition between the runs and between the weld and the parent material is so formed that satisfactory penetration can be accomplished when weldin
31、g the next run;d) after any necessary repairs/remedial action, the weld conforms to the original requirements of the welding procedure specification.5.4 Visual examination of the finished weldWelds shall be examined in the aswelded condition and shall also be examined after any surface treatment (if
32、 any).The finished weld shall be examined to determine whether it meets the requirements of the application or product standard or other agreed acceptance criteria, on the basis of specific quality levels as defined in EN 16296.All the imperfections that are not permissible shall be reported.5.5 Vis
33、ual examination of repaired weldsWhen a weld fails to comply wholly or in part with the applicable acceptance criteria and repair is necessary, the repaired weld shall be reexamined to the same requirements as the original weld.6 Test reportWhen test records are required, at least the following info
34、rmation shall be included in the report:a) name of the component manufacturer;b) name of the examining body, if different from the component manufacturer;5BS EN 131001:2017EN 131001:2017 (E)c) reference to this standard;d) location of the weld(s);e) the applicable acceptance criteria;f) type of mate
35、rial(s);g) material thickness;h) type of joint;i) welding process;j) extent of examination;k) examination devices used (if any);l) result of examination, with the detail of the imperfections exceeding the acceptance criteria and their location;m) name and signature of examiner and date of examinatio
36、n.If a permanent visual record of an examined weld is required, photographs or accurate sketches or both shall be made with any imperfections clearly indicated.6 BS EN 131001:2017EN 131001:2017 (E)Bibliography1 CEN/TS 16892, Plastics Welding of thermoplastics Specification of welding procedures2 EN
37、ISO 9712, Non-destructive testing Qualification and certification of NDT personnel (ISO 9712)7BS EN 131001:2017This page deliberately left blankThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information
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