1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 7963:2010Non-destructive testing Ultrasonic testing Specification for calibrationblock No. 2 (ISO 7963:2006)BS EN ISO 7963:2010 BRITISH STANDARDNational forewordThis Br
2、itish Standard is the UK implementation of EN ISO 7963:2010.It is identical to ISO 7963:2006. It supersedes BS EN 27963:1992 whichis withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee WEE/46, Non-destructive testing.A list of organizations represented on this commi
3、ttee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 70835 0ICS 25.160.40Compliance with a British Standard cannot confer immunity fromlegal obl
4、igations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2010.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 7963 September 2010 ICS 25.160.40 Supersedes EN 27963:1992
5、English Version Non-destructive testing - Ultrasonic testing - Specification for calibration block No. 2 (ISO 7963:2006) Essais non destructifs - Contrle par ultrasons - Spcifications relatives au bloc dtalonnage n 2 (ISO 7963:2006) Zerstrungsfreie Prfung - Ultraschallprfung - Beschreibung des Kalib
6、rierkrpers Nr 2 (ISO 7963:2006) This European Standard was approved by CEN on 26 August 2010. 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-dat
7、e lists and bibliographical references concerning such national standards may be obtained on application to the CEN 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
8、e responsibility of a CEN member into its own language and notified to the CEN 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, France, Germany, Gre
9、ece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Managem
10、ent Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 7963:2010: EBS EN ISO 7963:2010EN ISO 7963:2010 (E) 3 Foreword The text of ISO 7963:2006 has been prepared by Technical Committe
11、e ISO/TC 135 “Non-destructive testing” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 7963:2010 by Technical Committee CEN/TC 138 “Non-destructive testing” the secretariat of which is held by AFNOR. This European Standard shall be given the status of a
12、national standard, either by publication of an identical text or by endorsement, at the latest by March 2011, and conflicting national standards shall be withdrawn at the latest by March 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of pate
13、nt rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 27963:1992. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European S
14、tandard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the Uni
15、ted Kingdom. Endorsement notice The text of ISO 7963:2006 has been approved by CEN as a EN ISO 7963:2010 without any modification. BS EN ISO 7963:2010ISO 7963:2006(E) ISO 2006 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitio
16、ns. 1 4 Dimensions 1 5 Material 1 6 Preparation 3 7 Marking 3 8 Method of use 3 8.1 Setting of the time base . 3 8.2 Sensitivity setting and probe checking 5 9 Certificate 7 Annex A (normative) Calibration block characteristics and use 8 Bibliography . 9 BS EN ISO 7963:2010ISO 7963:2006(E) iv ISO 20
17、06 All rights reservedForeword ISO (the 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
18、 subject for which a technical committee 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 Commissio
19、n (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical co
20、mmittees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. ISO 7963 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 5, Testing and inspection of
21、 welds. This second edition cancels and replaces the first edition (ISO 7963:1985), which has been technically revised. BS EN ISO 7963:2010ISO 7963:2006(E) ISO 2006 All rights reserved vIntroduction Calibration block No. 2 differs in size and shape from that described in ISO 2400. Calibration block
22、No. 2 is very much smaller and lighter, and its geometry is much simpler. Calibration block No. 2 does not offer as much scope as the larger block; in particular it is not meant to check an ultrasonic flaw detector completely. However, calibration block No. 2 makes it possible, during practical test
23、ing, to check simply, from time to time, the setting of the time base and the sensitivity of the ultrasonic equipment. Moreover, it is suited to checking the beam angle and the probe index of miniature angle-beam probes. NOTE Calibration block No. 1 is currently specified in EN 12223. Requests for o
24、fficial interpretations of any aspect of this International Standard should be directed to the Secretariat of ISO/TC 44/SC 5 via your national standards body, a complete listing which can be found at www.iso.org. BS EN ISO 7963:2010BS EN ISO 7963:2010INTERNATIONAL STANDARD ISO 7963:2006(E) ISO 2006
25、All rights reserved 1Non-destructive testing Ultrasonic testing Specification for calibration block No. 2 1 Scope This International Standard specifies the dimensions, material, manufacture and methods of use for calibration block No. 2 for calibrating and checking ultrasonic testing equipment. 2 No
26、rmative 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 referenced document (including any amendments) applies. ISO 4287, Geometrical Product
27、Specifications (GPS) Surface texture: Profile method Terms, definitions and surface texture parameters ISO 5577, Non-destructive testing Ultrasonic inspection Vocabulary EN 10025-1, Hot rolled products of structural steels Part 1: General technical delivery conditions 3 Terms and definitions For the
28、 purposes of this document, the terms and definitions given in ISO 5577 apply. 4 Dimensions The dimensions of the block are given in Figure 1. The tolerances are 0,1 mm, except on the length of the engraved scale where it is 0,5 mm. Average surface roughness values, Ra, are defined in accordance wit
29、h ISO 4287. The thickness of the block can be greater than 12,5 mm (see A.1). 5 Material The calibration block shall be made of steel of grade S355JO in accordance with EN 10025-1 or equivalent. BS EN ISO 7963:2010ISO 7963:2006(E) 2 ISO 2006 All rights reservedDimensions in millimetres, surface roug
30、hness in micrometres Key 1 reflection surface Figure 1 Calibration block No. 2 for ultrasonic testing Dimensions of block and scales BS EN ISO 7963:2010ISO 7963:2006(E) ISO 2006 All rights reserved 36 Preparation The calibration block shall be homogeneous and free from defects revealed by ultrasonic
31、 testing (see A.2). In order to obtain a fine grain structure and good homogeneity, before final machining the block shall be heat treated as follows: a) maintain at 920 C for 30 min with water-quenching; b) reheating to 650 C for at least 2 h with cooling in still air. After heat treatment, and pri
32、or to machining, the block shall undergo further ultrasonic testing from two different directions at right angles to each other and in the direction of rolling. At least 2 mm shall be removed from all surfaces after heat treatment. All dimensions and surface finishes shall be in accordance with Figu
33、re 1. In order to prevent parasitic effects, the depth of the marks of the engraved scale shall be 0,1 mm 0,05 mm. The length of the marks shall be 6 mm and the tolerance on the positioning of the marks shall be 0,2 mm. On completion of machining, a final ultrasonic testing shall be carried out. The
34、 velocity of longitudinal waves shall be verified as being 5 920 m/s 30 m/s and the velocity of transverse waves shall be verified as being 3 255 m/s 15 m/s. 7 Marking Reference marks on block No. 2 shall be permanently marked as shown in Figure 1. Additionally the block shall be permanently marked
35、with the manufacturers trade mark, the number of this International Standard, and a unique serial number. 8 Method of use 8.1 Setting of the time base To set the time base, the leading edge (left side) of successive echoes shall be adjusted to coincide with the appropriate scale markings on the scre
36、en of the measuring equipment. The pulse-travel time depends on the velocity of ultrasonic waves in the material examined. 8.1.1 Calibration of the time base up to 250 mm with a straight beam probe The position of the probe on the reflective side of the calibration block shall be as indicated in Fig
37、ure 2a). Figure 2b) is a schematic representation of the screen (A-scan) of the instrument for calibration of a range of 50 mm. NOTE Depending on the probe and the frequency used, difficulties can arise when calibrating distances greater than 10 times the thickness of the block. BS EN ISO 7963:2010I
38、SO 7963:2006(E) 4 ISO 2006 All rights reservedDimensions in millimetres a) Position of probe on the calibration block b) Schematic representation of the A-scan for calibration of a range of 50 mm Figure 2 Calibration of time base up to 250mm with a straight-beam probe 8.1.2 Calibration of the time b
39、ase for 100 mm or 125 mm with a miniature angle-beam probe The position of the miniature shear-wave probe on the calibration block shall be as shown in Figure 3a) for a distance of 125 mm and in Figure 3b) for a distance of 100 mm. The screen of the instrument for the calibration of these two ranges
40、 is shown schematically in Figures 3a) and 3b). Dimensions in millimetres a) For a range of 125 mm b) For a range of 100 mm Figure 3 Position of miniature shear-wave probe on the calibration block BS EN ISO 7963:2010ISO 7963:2006(E) ISO 2006 All rights reserved 58.2 Sensitivity setting and probe che
41、cking 8.2.1 General A large number of factors can influence the sensitivity setting (see A.3). 8.2.2 Longitudinal-wave probes Sensitivity setting The probe shall be placed in position “a” as indicated in Figure 4. The A-scan representing the successive echoes shall be used as a reference for setting
42、 sensitivity. The reflection from the 5 mm diameter hole, position “b” in Figure 4 may also be used, the probe being placed so that the corresponding echo amplitude is at its maximum. Figure 4 Straight-beam probes Sensitivity setting 8.2.3 Miniature shear-wave probes 8.2.3.1 Sensitivity setting The
43、maximum echo from the 5 mm diameter hole shall be used as a reference for setting sensitivity (see Figure 5, position “a”). Figure 5 Miniature angle-beam probes Sensitivity setting Alternatively, it is possible to make use of the reflections from the cylindrical surfaces of radii 50 mm and 25 mm, re
44、spectively. In this case, there are two possibilities: a) by using a calibrated gain control, the amplitude of the echo from the cylindrical surface is initially set to 80 % of screen height and subsequently adjusted to the level desired (see Figure 5, position “b”); b) without the use of a calibrat
45、ed gain control, the successive echoes from the cylindrical surfaces can be used for the adjustment of sensitivity (see Figure 6). BS EN ISO 7963:2010ISO 7963:2006(E) 6 ISO 2006 All rights reservedWhen checking probes, the acoustic coupling is an important factor, and when comparing probes, the same
46、 coupling medium shall be used. Figure 6 Miniature angle-beam probes Sensitivity setting without calibrated gain control 8.2.3.2 Determination of the position of the probe index The miniature angle-beam probe shall be positioned as shown in Figures 3a) or 3b) and moved parallel to the main faces of
47、the calibration block until the amplitude of the echo from the cylindrical surface has reached its maximum. The probe index coincides with the centre mark of the millimetre scale of the block. 8.2.3.3 Determination of beam angle The echo obtained from the 5 mm diameter hole is used to determine the
48、beam angle. The miniature shear-wave probe shall be moved parallel along the main faces of the calibration block until the amplitude of the echo from the 5 mm diameter hole has reached its maximum. The beam angle is obtained either by direct reading of the scale engraved on the calibration block, co
49、inciding with the index mark of the probe, or by interpolation if the position found does not coincide with one of the scale lines. The positions shown in Figure 7 make it possible to check beam angles of 45, 60 and 70 probes. Figure 7 Miniature angle-beam probes Determination of beam angle BS EN ISO 7963:2010ISO 7963:2006(E) ISO 2006 All rights reserved 79 Certificate For each block, a certificate shall be issued by the manufacturer stating: a) that the block complies
