ISO INTERNATIONAL STANDARD 22232-2 First edition 2020-09 Non-destructive testing Characterization and verification of ultrasonic test equipment - Part 2: Probes Essaisnon destructifsCaracterisation etvérificationde I'appareillage de controleparultrasons- Partie2:Traducteurs Reference number ISO 22232-2:2020(E) ISO @IS02020 IS022232-2:2020(E) COPYRIGHTPROTECTEDDOCUMENT ISO2020 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may below or ISo's member body in the country of the requester. ISO copyright office CP 40i : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii IS02020-Allrights reserved IS022232-2:2020(E) Contents Page Foreword V 1 Scope .1 2 Normative references. .1 3 Terms and definitions .1 4 Symbols. .3 5 Generalrequirements ofconformity .4 6 Technicalinformationforprobes .5 6.1 General. 5 6.2 Probe data sheet 5 6.3 Probe test report 5 7 Test equipment. 7 7.1 7 Electronic equipment. 7.2 Test blocks and other equipment 7 .15 8 Performancerequirements for probes 8.1 Physical aspects.. .15 .15 8.1.1 Procedure .15 8.1.2 Acceptance criterion. 8.2 Pulse shape, amplitude and duration 15 8.2.1 .15 Procedure 8.2.2 Acceptance criterion .16 8.3 Frequency spectrum and bandwidth 17 8.3.1 Procedure 17 8.3.2 Acceptance criteria 17 8.4 Pulse-echo sensitivity 17 8.4.1 Procedure 17 8.4.2 Acceptancecriterion 18 8.5 Distance-amplitude curve 18 8.5.1 General. 18 8.5.2 Procedure 18 8.5.3 Acceptance criterion. .20 8.6 Beam parameters for immersion probes 20 8.6.1 General. 20 8.6.2 Beamprofile -Measurementsperformeddirectlyonthebeam 21 8.6.3 Beamprofile-Measurements made usingan automated scanning system 28 8.7 Beam parameters for straight-beam single-transducer contact probes 30 .30 8.7.1 General. 8.7.2 Beam divergence and side lobes 31 8.7.3 Squint angle and offset for straight-beam probes .32 8.7.4 Focal distance (near field length) 33 8.7.5 .33 Focal width 8.7.6 .34 Length of the focal zone .34 8.8 Beam parametersforangle-beam single-transducer contactprobes .34 8.8.1 General. 8.8.2 Index point .34 8.8.3 Beam angle and beam divergence. .35 8.8.4 Squint angle and offset for angle-beam probes .38 8.8.5 Focal distance (nearfield length) 41 8.8.6 Focal width 42 .42 8.8.7 Length of the focal zone. 8.9 Beam parameters for straight-beam dual-transducer contact probes 43 8.9.1 General. 43 8.9.2 Delay linedelay path 43 @ IS0 2020 - All rights reserved iii