1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationNon-destructive testing Ultrasonic testing Specification for calibration block No. 1BS EN ISO 2400:2012National forewordThis British Standard is the UK implementation of EN ISO 2
2、400:2012. It super-sedes BS EN 12223:2000 which is withdrawn.The UK participation in its preparation was entrusted to Technical CommitteeWEE/46, Non-destructive testing.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport
3、to include all the necessary provisions of acontract. Users are responsible for its correct application. The British Standards Institution 2012Published by BSI Standards Limited 2012ISBN 978 0 580 74127 2ICS 19.100Compliance with a British Standard cannot confer immunity fromlegal obligations.This B
4、ritish Standard was published under the authority of the StandardsPolicy and Strategy Committee on 31 October 2012.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN ISO 2400:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2400 September 2012 ICS 25.160.
5、40 Supersedes EN 12223:1999English Version Non-destructive testing - Ultrasonic testing - Specification for calibration block No. 1 (ISO 2400:2012) Essais non destructifs - Contrle par ultrasons - Spcifications relatives au bloc dtalonnage n 1 (ISO 2400:2012) Zerstrungsfreie Prfung - Ultraschallprfu
6、ng - Beschreibung des Kalibrierkrpers Nr 1 (ISO 2400:2012) This European Standard was approved by CEN on 14 September 2012. 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 wit
7、hout any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained 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
8、 language made by translation under the 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, D
9、enmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMIT
10、TEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 2400:2012: EBS EN ISO 2400:2012EN I
11、SO 2400:2012 (E) 2 Contents Page Foreword 3BS EN ISO 2400:2012EN ISO 2400:2012 (E) 3 Foreword This document (EN ISO 2400:2012) has been prepared by Technical Committee CEN/TC 138 “Non-destructive testing”, the secretariat of which is held by AFNOR, in collaboration with Technical Committee ISO/TC 13
12、5 “Non-destructive testing“. 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 mars 2013, and conflicting national standards shall be withdrawn at the latest by mars 2013. Attention is drawn to the
13、possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12223:1999. According to the CEN/CENELEC Internal Regulations, the national standard
14、s organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem
15、bourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN ISO 2400:2012Non-destructive testing Ultrasonic testing Specification for calibration block No. 11 ScopeThis International Standard specifies requirement
16、s for the dimensions, material and manufacture of a steel block for calibrating ultrasonic test equipment used in manual testing.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For
17、undated references, the latest edition of the referenced document (including any amendments) applies.ISO 5577, Non-destructive testing Ultrasonic inspection VocabularyEN 1330-4, Non-destructive testing Terminology Part 4: Terms used in ultrasonic testingEN 10025-2, Hot rolled products of structural
18、steels Part 2: Technical delivery conditions for non-alloy structural steels3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 5577 and EN 1330-4 apply.4 Manufacture4.1 SteelBlocks shall be manufactured from steel grade S355J0, specified in EN 10025-2, o
19、r from steel of an equivalent grade.4.2 DimensionsThe dimensions of calibration block No. 1 shall be as shown in Figure 1.NOTE This International Standard does not include any requirement for a plastic insert.4.3 Machining, heat treatment and surface finishBlocks shall be rough-machined to a dimensi
20、on of 320 mm 120 mm 30 mm before heat treatment which shall consist of: austenitizing at 920 C for 30 min; rapid cooling (quenching) in water; tempering by heating to 650 C for 3 h; cooling in still air.All external surfaces shall be machined to an Ra value not greater than 0,8 m.INTERNATIONAL STAND
21、ARD ISO 2400:2012(E) ISO 2012 All rights reserved 1BS EN ISO 2400:2012ISO 2400:2012(E)Prior to final machining, the block shall be proven to be free from internal discontinuities. For this purpose, an ultrasonic examination shall be carried out after the heat treatment, with a longitudinal wave prob
22、e of at least 10 MHz nominal centre frequency and having a transducer size of 10 mm to 15 mm. The block shall be checked on the basis of all four long faces to cover the complete volume. With the probe positioned on the largest face of the block, the equipment gain shall be set to achieve a grain sc
23、atter noise of 10 % of the screen height. No echo shall have an amplitude greater than that of the grain scatter noise.4.4 Reference marksReference marks shall be permanently marked as shown in Figure 1 and Table 1.5 VelocitiesThe velocities of longitudinal and transverse waves shall be determined a
24、s specified in Annex A. The velocities shall be determined within a maximum permissible error of 0,2 %, i.e. with an uncertainty of 6 m/s for transverse waves and 12 m/s for longitudinal waves.The determined longitudinal wave velocity, vl, shall be 5 920 m/s 30 m/s and the transverse wave velocity,
25、vt, shall be 3 255 m/s 15 m/s.6 MarkingThe block shall be permanently marked, in the area shown in Figure 1, with:a) the number of this International Standard, i.e. ISO 2400;b) the manufacturers serial number and trade mark.7 Declaration of conformityA declaration shall be issued by the manufacturer
26、 for each block, containing:a) a statement that the block complies with this International Standard, i.e. ISO 2400;b) the mean value of the determined longitudinal wave velocities, vl; see Clause 5;c) the mean value of the determined transverse wave velocities, vt; see Clause 5.8 Possible modificati
27、ons to block No. 18.1 GeneralOne of the modifications in 8.2 or 8.3 shall be made to the block.8.2 Slots at zero pointIf this modification is chosen, two slots at the zero point shall be machined (see Figure 2), which for angle beam probes provide calibrating signals at intervals of 100 mm.8.3 Circu
28、lar reflectorIf this modification is chosen, a circular arc reflector accessible from the longer sides of the block shall be machined, see Figure 3. For angle beam probes, this provides calibrating signals at beam path lengths of 25 mm, 225 mm, 350 mm, etc.2 ISO 2012 All rights reservedBS EN ISO 240
29、0:2012ISO 2400:2012(E)8.4 Block thicknessThicker blocks are permitted.9 Existing blocksExisting blocks fulfil the requirements of this International Standard provided that they meet the requirements on velocities (see Clause 5) and dimensions (see 4.2) with the exception that the small side-drilled
30、hole may have a diameter of 1,5 mm. ISO 2012 All rights reserved 3BS EN ISO 2400:2012ISO 2400:2012(E)Dimensions in millimetresTolerances, unless otherwise stated 0,10 mm Height of characters for angle indents 5 mmAngle identification and index mark lengths 0,4 mm Surface finish, all over Ra 0,8 mFig
31、ure 1 Block dimensions with tolerances4 ISO 2012 All rights reservedBS EN ISO 2400:2012ISO 2400:2012(E)Table 1 Indent distanceDistance a from the edgemmDistance b from hole BmmIndent with label Indent without label75,4 40,4 30 84,0 49,0 35 85,9 50,9 3691,7 56,7 3993,7 58,7 40 98,0 63,0 42102,6 67,6
32、44105,0 70,0 45 107,5 72,5 46112,7 77,7 48118,4 83,4 50 124,6 89,6 52131,3 96,3 54135,0 100,0 55 138,8 103,8 56147,0 112,0 58156,2 121,2 60Distance c from the edgemmDistance d from hole AmmIndent with label Indent without label87,0 52,0 6091,4 56,4 6296,5 61,5 64102,4 67,4 66109,3 74,3 68117,4 82,4
33、70127,3 92,3 72139,6 104,6 74155,3 120,3 76Distance e from the edgemmDistance f from hole BmmIndent with label Indent without label76,2 41,2 70 81,2 46,2 7287,3 52,3 74 95,2 60,2 76105,6 70,6 78 120,1 85,1 80 ISO 2012 All rights reserved 5BS EN ISO 2400:2012ISO 2400:2012(E)Dimensions in millimetresF
34、igure 2 Two zero-point slotsDimensions in millimetresFigure 3 Circular reflector6 ISO 2012 All rights reservedBS EN ISO 2400:2012ISO 2400:2012(E)Annex A (normative) Determination of velocitiesA.1 GeneralThis method first measures the physical dimensions of the block to an uncertainty of 0,01 mm. The
35、 areas to be used are checked to ensure that there are no variations in thickness greater than 0,01 mm over the area of the probe face. An instrument in conjunction with a straight-beam probe is then used to measure the time of flight (to an accuracy in the measurement of time difference of 0,2 %).
36、Velocities are then calculated (path over time)1). The time of flight is measured in different directions, i.e. at two well separated positions through the 25 mm thickness (one at the quadrant and one close to the large hole) and at one position through the 100 mm thickness. The measurements shall b
37、e carried out within the temperature range 17 C to 23 C.A.2 Longitudinal wavesUse a probe with a nominal centre frequency of at least 5 MHz, broadband pulse and a transducer size of 10 mm to 15 mm in diameter. Measure the time difference between the first and second backwall echo.A.3 Transverse wave
38、sFor all directions, use a 0 transverse wave probe of frequency 4 MHz to 5 MHz, broadband pulse and a transducer size of 10 mm to 15 mm in diameter. Measure the time difference between the first and second backwall echo.Because transverse waves are polarized, make two measurements in each location o
39、f the probe with the plane of polarization in the second measurement perpendicular to the first measurement and parallel to one side of the block. Thus, for each calibration block, there are at least six values for transverse wave velocity.1) 1 mm/s 1 000 m/s ISO 2012 All rights reserved 7BS EN ISO
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