1、BRITISH STANDARD BS EN 13100-3:2004 Non destructive testing of welded joints in thermoplastics semi-finished products Part 3: Ultrasonic testing The European Standard EN 13100-3:2004 has the status of a British Standard ICS 25.160.40 BS EN 13100-3:2004 This British Standard was published under the a
2、uthority of the Standards Policy and Strategy Committee on 3 December 2004 BSI 3 December 2004 ISBN 0 580 44958 0 National foreword This British Standard is the official English language version of EN 13100-3:2004. The UK participation in its preparation was entrusted to Technical Committee PRI/80,
3、Welding of plastics, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI
4、Catalogue under the section entitled “International Standards Correspondence 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 it
5、s correct application. Compliance with a British Standard does not of itself 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 interes
6、ts informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 16, an inside back cover and a back cover. The BSI copyright notice displayed in this docum
7、ent indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN131003 November2004 ICS25.160.40 Englishversion Nondestructivetestingofweldedjointsinthermoplasticssemi finishedproductsPart3:Ultrasonictesting
8、Contrlenondestructifdesassemblagessoudssur produitssemifinisenthermoplastiquesPartie3:Contrle parultrasons ZerstrungsfreiePrfungvonSchweiverbindungen thermoplastischerKunststoffeTeil3:Ultraschallprfung ThisEuropeanStandardwasapprovedbyCENon14October2004. CENmembersareboundtocomplywiththeCEN/CENELECI
9、nternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeo
10、fficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Est
11、onia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementC
12、entre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN131003:2004:EEN 13100-3:2004 (E) 2 Contents page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Symbols and designations .4 5 General5
13、 6 Information required prior to examination5 6.1 Examination procedure.5 6.2 Information required by the operator 5 6.3 Written examination procedure6 7 Requirements for personnel and equipment 6 7.1 Personnel qualifications .6 7.2 Equipment 6 7.3 Probe parameters 6 8 Examination volume7 9 Preparat
14、ion of scanning surfaces7 10 Range and sensitivity setting.8 10.1 General8 10.2 Reference level.9 10.3 Evaluation levels11 10.4 Transfer correction11 10.5 Signal-to-noise ratio 11 11 Examination technique .11 11.1 Ultrasonic techniques .11 11.2 Location of indications .13 11.3 Evaluation of indicati
15、ons 14 12 Examination report 14 12.1 General14 12.2 General data .14 12.3 Information relating to equipment .15 12.4 Information relating to examination technique 15 12.5 Results of the examination.15 Bibliography 16 EN 13100-3:2004 (E) 3 Foreword This document (EN 13100-3:2004) has been prepared by
16、 Technical Committee CEN/TC 249 “Plastics”, the secretariat of which is held by IBN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2005, and conflicting national standards shall be withdrawn
17、 at the latest by May 2005. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland
18、, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 13100-3:2004 (E) 4 1 Scope This document specifies methods for the manual ultrasonic examination of heated tool, electrofusion, extrusi
19、on and hot gas joints in plastics materials. It applies to joints in single wall pipes and plates. The range of thicknesses covered is from 10 mm to 100 mm. This document does not specify acceptance levels of the indications. 2 Normative references The following referenced documents are indispensabl
20、e for the application 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. EN 473, Non-destructive testing Qualification and certification of NDT personnel General principles
21、EN 583-2, Non-destructive testing Ultrasonic examination Part 2: Sensitivity and range setting EN 583-4, Non-destructive testing Ultrasonic examination Part 4: Examination for discontinuities perpendicular to the surface EN 1330-2:1998, Non-destructive testing Terminology Part 2: Terms common to the
22、 non-destructive testing methods EN 1330-4:2000, Non-destructive testing Terminology Part 4: Terms used in ultrasonic testing EN 12668-1, Non-destructive testing Characterization and verification of ultrasonic examination equipment Part 1: Instruments EN 12668-2, Non-destructive testing Characteriza
23、tion and verification of ultrasonic examination equipment Part 2: Probes EN 12668-3, Non-destructive testing Characterization and verification of ultrasonic examination equipment Part 3: Combined equipment ENV 583-6, Non-destructive testing Ultrasonic examination Part 6: Time-of-flight diffraction t
24、echnique as a method for detection and sizing of discontinuities 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1330-2:1998 and EN 1330-4:2000 apply. 4 Symbols and designations Symbols and designations are given in Table 1. EN 13100-3:2004 (E) 5 Tabl
25、e 1 Symbols and designations Symbol Designations Unit t Thickness of parent material (thinnest part) mm l Length of the indication mm h Extension of the indication in depth direction mm x Position of the indication in the longitudinal direction mm y Position of the indication in the transverse direc
26、tion mm z Position of the indication in depth mm D Diameter of the component mm a Dimension of the wedge in the direction of examination mm 5 General The purpose of this document is to describe general methods of ultrasonic examination for the most commonly used welded joints in thermoplastics. The
27、specific requirements specified by this document cover the equipment, preparation, performance of the examination and reporting. Methods to be used for ultrasonic assessment of indications and acceptance criteria shall be specified. 6 Information required prior to examination 6.1 Examination procedu
28、re The following items shall be specified: method for setting the reference level; method to be used for evaluation of indications; acceptance levels; examination level; manufacturing and operation stage(s) at which the examination is to be carried out; qualification of personnel; whether or not a w
29、ritten examination procedure is required; requirements for written examination procedures. 6.2 Information required by the operator Before any examination of a welded joint can begin, the operator shall have access to the following information: written examination procedure, if required (see 6.3); t
30、ype(s) of parent material; joint preparation and dimensions; EN 13100-3:2004 (E) 6 welding procedure or relevant information on the welding process; reporting requirements. 6.3 Written examination procedure The definitions and requirements in this document will normally satisfy the need for a writte
31、n examination procedure. When this is not the case, or when the techniques described in this document are not applicable to the welded joint to be examined, additional written examination procedures shall be used. 7 Requirements for personnel and equipment 7.1 Personnel qualifications Personnel perf
32、orming examinations in accordance with this document shall be qualified to an appropriate level in accordance with the relevant document, e.g. EN 473. In addition to a general knowledge of ultrasonic weld inspection, the personnel shall be aware of testing problems specifically associated with the t
33、hermoplastic material and type of welded joints to be examined. 7.2 Equipment Any equipment used in conjunction with this document shall comply with the requirements of EN 12668-1 to EN 12668-3. Prior to the publication of a document related to the subject, the corresponding national documents may b
34、e used. 7.3 Probe parameters 7.3.1 Frequency Only longitudinal (compression) wave transducers shall be used for the inspection of thermoplastics. The frequency of the transducers shall be in the range 1 MHz to 5 MHz and shall be chosen such that flaw sensitivity is maximised without compromising sig
35、nal-to-noise performance. To improve signal-to-noise performance piezo-composite transducers may be used. 7.3.2 Angles of incidence The probe angle(s) used shall ensure that the weld fusion face(s) are examined at, or as near as possible to, normal incidence. This means that for electrofusion joints
36、, for example, a 0 probe angle shall be used. 7.3.3 Focusing For the examination of electrofusion joints focusing probes should be used. These probes shall be focused to the depth of the welded interfaces, i.e. their focal distance shall be equal to the wall thickness of the socket. Focused probes s
37、hould not be used for the examination of heated tool, extrusion or hot gas welded joints unless otherwise specified. 7.3.4 Wedge material Wedges should be made of PTFE. EN 13100-3:2004 (E) 7 7.3.5 Adoption of probes to curved scanning surfaces The gap between the test surface and the bottom of the w
38、edge shall not be greater than 0,5 mm. For cylindrical or spherical surfaces this requirement will normally be met when the following equation is fulfilled: D 15 a If this requirement cannot be met, the wedge shall be adapted to the surface and the sensitivity and range shall be set accordingly. 8 E
39、xamination volume The examination volume (see Figure 1) shall include weld and parent material for at least 5 mm on each side of the weld, or the width of the heat affected zone, whichever is greater. In all cases scanning shall cover the whole examination volume. If individual sections of this volu
40、me cannot be covered by a single scanning technique, alternative or supplementary ultrasonic techniques shall be used. 9 Preparation of scanning surfaces Scanning surfaces shall be wide enough to permit the examination volume to be fully covered. Alternatively, the width of the scanning surfaces may
41、 be smaller if equivalent coverage of the examination volume can be achieved by scanning either from both sides of the joint or from both the upper and the lower surface of the joint. Scanning surfaces shall be even and free from foreign matter likely to interfere with probe coupling (e.g. soil, not
42、ches, grooves etc.). Unevenness of the test surface shall not result in a gap between the probe and test surface greater than 0,5 mm The examination can be performed with either the weld bead intact or removed. EN 13100-3:2004 (E) 8 a) Electrofusion (socket) joints b) Heated tool joints c) Hot-gas /
43、 extrusion joints Key 1 Examination volume Figure 1 Examination volume 10 Range and sensitivity setting 10.1 General Setting of range and sensitivity shall be carried out whenever the probe type, probe angle, weld type, material type or material thickness is changed in accordance with this document
44、and EN 583-2. Checks to confirm these settings shall be performed at least every 4 h and on completion of the examination. Checks shall also be carried out if the operator or surface condition change, the leads are changed, a new weld (of the same EN 13100-3:2004 (E) 9 type) is examined or if change
45、s in the equivalent settings (for example noise level, backwall echo) are suspected. If deviations are found during these checks the corrections given in Table 2 shall be carried out. Table 2 Sensitivity and range corrections Sensitivity 1 Deviations 4 dB The setting shall be corrected before the ex
46、amination is continued 2 Reduction of the sensitivity 4 dB Setting shall be corrected and all examinations carried out with the equipment over the previous period shall be repeated 3 Increase in sensitivity 4 dB Setting shall be corrected and all recorded indications shall be re- examined Range 1 De
47、viations 2 % of the range The setting shall be corrected before examination is continued 2 Deviations 2 % of the range Setting shall be corrected and examinations carried out with the equipment over the previous period shall be repeated 10.2 Reference level The following methods for setting referenc
48、e levels shall be used, dependent on which ultrasonic technique has been selected: Normal incidence and angled longitudinal (compression) wave inspection: the reference level shall be set using a distance amplitude correction (DAC) curve for a 3 mm diameter side-drilled hole in accordance with EN 583-2; Tandem examination: The reference level shall be set using a 3 mm diameter end-drilled flat bottomed hole, inserted at mid-thickness in a test block of similar thickness and material to the c
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