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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 ? Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:08:51
2、GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 13100-3:2004 This British Standard was published under the authority 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 vers
3、ion of EN 13100-3:2004. The UK participation in its preparation was entrusted to Technical Committee PRI/80, 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
4、 which implement international or European publications referred to in this document may be found in the BSI 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 pub
5、lication does not purport to include all the necessary provisions of a contract. Users are responsible for its 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 internati
6、onal/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests 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
7、 page, pages 2 to 16, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:08:51 GMT+00:00 2006, Unco
8、ntrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13100-3 November 2004 ICS 25.160.40 English version Non destructive testing of welded joints in thermoplastics semi- finished products - Part 3: Ultrasonic testing Contrle non destructif des assemblages souds sur produits se
9、mi-finis en thermoplastiques - Partie 3 : Contrle par ultrasons Zerstrungsfreie Prfung von Schweiverbindungen thermoplastischer Kunststoffe - Teil 3: Ultraschallprfung This European Standard was approved by CEN on 14 October 2004. CEN members are bound to comply with the CEN/CENELEC Internal Regulat
10、ions 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 obtained on application to the Central Secretariat or to any CEN member. This Euro
11、pean 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 Central Secretariat has the same status as the official versions. CEN members are the nati
12、onal standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUR
13、OPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2004 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13100-3:2004: E Licensed C
14、opy: sheffieldun sheffieldun, na, Sun Oct 29 10:08:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13100-3:2004 (E) 2 Contents page Foreword3 1 Scope 4 2 Normative references4 3 Terms and definitions .4 4 Symbols and designations.4 5 General5 6 Information required prior to examination5 6.1 Examina
15、tion procedure.5 6.2 Information required by the operator 5 6.3 Written examination procedure6 7 Requirements for personnel and equipment6 7.1 Personnel qualifications .6 7.2 Equipment 6 7.3 Probe parameters 6 8 Examination volume7 9 Preparation of scanning surfaces7 10 Range and sensitivity setting
16、.8 10.1 General8 10.2 Reference level.9 10.3 Evaluation levels11 10.4 Transfer correction11 10.5 Signal-to-noise ratio11 11 Examination technique .11 11.1 Ultrasonic techniques .11 11.2 Location of indications .13 11.3 Evaluation of indications 14 12 Examination report14 12.1 General14 12.2 General
17、data.14 12.3 Information relating to equipment .15 12.4 Information relating to examination technique 15 12.5 Results of the examination.15 Bibliography16 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:08:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13100-3:2004 (E) 3 Foreword This do
18、cument (EN 13100-3:2004) has been prepared by 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 conf
19、licting national standards shall be withdrawn 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, Finla
20、nd, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:08:51 GMT+00:00 2006, Uncontrolled
21、Copy, (c) BSI EN 13100-3:2004 (E) 4 1 Scope This document specifies methods for the manual ultrasonic examination of heated tool, electrofusion, extrusion 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
22、 100 mm. This document does not specify acceptance levels of the indications. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the refe
23、renced document (including any amendments) applies. EN 473, Non-destructive testing Qualification and certification of NDT personnel General principles EN 583-2, Non-destructive testing Ultrasonic examination Part 2: Sensitivity and range setting EN 583-4, Non-destructive testing Ultrasonic examinat
24、ion Part 4: Examination for discontinuities perpendicular to the surface EN 1330-2:1998, Non-destructive testing Terminology Part 2: Terms common to the non-destructive testing methods EN 1330-4:2000, Non-destructive testing Terminology Part 4: Terms used in ultrasonic testing EN 12668-1, Non-destru
25、ctive testing Characterization and verification of ultrasonic examination equipment Part 1: Instruments EN 12668-2, Non-destructive testing Characterization and verification of ultrasonic examination equipment Part 2: Probes EN 12668-3, Non-destructive testing Characterization and verification of ul
26、trasonic examination equipment Part 3: Combined equipment ENV 583-6, Non-destructive testing Ultrasonic examination Part 6: Time-of-flight diffraction technique as a method for detection and sizing of discontinuities 3 Terms and definitions For the purposes of this document, the terms and definition
27、s given in EN 1330-2:1998 and EN 1330-4:2000 apply. 4 Symbols and designations Symbols and designations are given in Table 1. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:08:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13100-3:2004 (E) 5 Table 1 Symbols and designations Symbol Desig
28、nations 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 direction mm z Position of the indication in d
29、epth 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 specific requirements specified by this d
30、ocument 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 procedure The following items shall be specified
31、: 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 written examination procedure is required;
32、 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); type(s) of parent material; joint preparat
33、ion and dimensions; Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:08:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 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 require
34、ments in this document will normally satisfy the need for a written 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 p
35、ersonnel and equipment 7.1 Personnel qualifications Personnel performing 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 sha
36、ll be aware of testing problems specifically associated with the thermoplastic 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
37、related to the subject, the corresponding national documents may be 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 chose
38、n such that flaw sensitivity is maximised without compromising signal-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 possi
39、ble to, normal incidence. This means that for electrofusion joints, 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 sh
40、all be equal to the wall thickness of the socket. Focused probes should 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. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:08:51 G
41、MT+00:00 2006, Uncontrolled Copy, (c) BSI 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 wedge shall not be greater than 0,5 mm. For cylindrical or spherical surfaces this requirement will normally be met when the fol
42、lowing 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 Examination volume The examination volume (see Figure 1) shall include weld and parent material for at least 5 mm on each side o
43、f 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 volume cannot be covered by a single scanning technique, alternative or supplementary ultrasonic techniques shall be used. 9 Prepar
44、ation 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 be smaller if equivalent coverage of the examination volume can be achieved by scanning either from both sides of the joint or
45、 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, notches, grooves etc.). Unevenness of the test surface shall not result in a gap between the probe and test surface greater than 0
46、,5 mm The examination can be performed with either the weld bead intact or removed. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:08:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13100-3:2004 (E) 8 a) Electrofusion (socket) joints b) Heated tool joints c) Hot-gas / extrusion joints Ke
47、y 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 and EN 583-2. Checks
48、 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 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:08:51 GMT+00:0
49、0 2006, Uncontrolled Copy, (c) BSI EN 13100-3:2004 (E) 9 type) is examined or if changes 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 examination is continued 2 Reduction of the sensit