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1、Recommended Practice No. The American Society for Nondestructive Testing, Inc. 20012001 SNT-TC-1A Recommended Practice No. SNT-TC-1A 2001 ISBN 1-57117-078-2 Catalog #2065 The American Society for Nondestructive Testing, Inc. FOUNDED 1941 FOUNDED 1941 Recommended Practice No. The American Society for
2、 Nondestructive Testing, Inc. 20012001 FOUNDED 1941 SNT-TC-1A This document is intended as a guideline for employers to establish their own written practice for the qualification and certification of nondestructive testing personnel. It is not intended to be used as a strict specification. Published
3、 by The American Society for Nondestructive Testing, Inc. 1711 Arlingate Lane Columbus, OH 43228-0518 (800) 222-2768 2001 by The American Society for Nondestructive Testing, Inc. All rights reserved. First edition 2001 Printed in the United States of America No part of this book may be reproduced or
4、 transmitted in any form, by any means electronic or mechanical including photocopying, recording, or otherwise, without the expressed prior written permission of the publisher. ASNT is not responsible for the authenticity or accuracy of information herein, and published opinions or statements do no
5、t necessarily reflect the opinion of ASNT. Products and/or services that may appear in this book do not carry the endorsement or recommendation of ASNT. ASNT assumes no responsibility for the safety of persons using the information in this book. Former editions of SNT-TC-1A used a variety of paragra
6、ph numbering schemes, and several of those were imported into later editions of the document, including the 1996 edition. The 2001 edition standardizes all paragraph numbering into a single format that is consistent throughout the document. ISBN 1-57117-078-2 First printing May 2001. ii FOREWORD Thi
7、s Recommended Practice establishes the general framework for a qualification and certification program. In addition, the document provides recommended educational, experience and training requirements for the different test methods. Supplementary documents include question and answer lists, which ma
8、y be used in composing examinations for nondestructive testing personnel. This recommended practice is not intended to be used as a strict specification. It is recognized, however, that contracts require programs, which meet the intent of this document. For such contracts, purchaser and supplier mus
9、t agree upon acceptability of an employers program. The verb “should” has been used throughout this document to emphasize the recommendation presented herein. It is the employers responsibility to address specific needs and to modify these guidelines as appropriate in a written practice. In the empl
10、oyers written practice, the verb “shall” is to be used in place of “should” to emphasize the employers needs. The 2001 Edition of SNT-TC-1A is annotated so that users of the 1996 Edition can quickly and easily locate new and updated material. The vertical lines in the margins of this document indica
11、te that information in the text has been modified in some way. Inquiries related to this Recommended Practice should be directed to the Chairman of the Methods Division at the following address: The American Society for Nondestructive Testing 1711 Arlingate Lane PO Box 28518 Columbus, OH 43228-0518
12、iii REVIEW COMMITTEE Publication and review of this Recommended Practice was under the direction of the SNT-TC-1A Review Committee which is a committee of the Methods Division. The Methods Division reports to the Technical and Education Council of the American Society for Nondestructive Testing. Rev
13、iew Committee Members: Claude D. Davis, Chairman Roland Valdes, Vice Chairman Thom Schafer, Secretary Mike McDaniel, Secretary Dennis Cabe Jim Doyle Gerard Hacker Jim Kelly Bradley Kienlen Edward A. Macejak Joseph Mackin Philip Oikle Lou Pagliaro Michael Ruddy Kirit Smart Ray Tsukimura John Tyson, I
14、I Technical and Education Council J. Steve Cargill Sharon Vukelich iv CONTENTS Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iii Review Committee . . . . . . . . . . . . . . . . . . . . . . . . .
15、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iv Personnel Qualification and Certification in Nondestructive Testing . . . . . . . . . . . . . . . . . . . . .1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16、 . . . . . . . . . . . . . . . . .1 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Nondestructive Testing Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17、. . . . . . . . . . .2 Levels of Qualification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Written Practice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18、 . . . . . . .3 Education, Training and Experience Requirements for Initial Qualification . . . . . . . . . . . . . . . . . .3 Training Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Examinations . . . . . . . .
19、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Technical Performance Evaluat
20、ion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Interrupted Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Recertification . . . . . . . . . . . . . . . . .
21、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Reinstatement . . . . . . . . . . . . . . . . . . .
22、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Table 6.3.1 A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 Table 6.3.1 B . . . . . . . . . . . . . . . . . . . . . .
23、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Recommended Training Courses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Acoustic Emission Testing Method . . . . . . . . . . . . . . . . . . . . . .
24、 . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Recommended Training for Level I Acoustic Emission Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Basic Acoustic Emission Physics Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Bas
25、ic Acoustic Emission Technique Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Recommended Training for Level II Acoustic Emission Testing . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Acoustic Emission Physics Course . . . . . . . . . . . . . . . . .
26、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Acoustic Emission Technique Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Acoustic Emission Testing Method Level III Topical Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27、20 Recommended Training References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Electromagnetic Testing Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 Recommended Training for Level
28、 I Electromagnetic Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 Basic Electromagnetic Physics Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 Electromagnetic Technique Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29、 . . . . . . . . . . . . . . . .29 Recommended Training for Level II Electromagnetic Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 Electromagnetic Evaluation Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 Electromagnetic Testing
30、 Method Level III Topical Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 Recommended Training References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 Laser Testing Methods Holography/Shearography . . . . . . . . . . . .
31、. . . . . . . . . . . . . . . . . . . . . .35 Recommended Training for Level I Laser Method Fundamentals in Holography/Shearography Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 Basic Holography/Shearography Physics Course . . . . . . . . . . . . . . .
32、. . . . . . . . . . . . . . . . . . .36 Recommended Training for Level I Holography/Shearography NDT . . . . . . . . . . . . . . . . . . . . . . .37 Basic Operating Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 Basic Application
33、Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 Recommended Training for Level II Holography/Shearography NDT . . . . . . . . . . . . . . . . . . . . . . .39 Intermediate Physics Course . . . . . . . . . . . . . . . . . . . . . . . .
34、 . . . . . . . . . . . . . . . . . . . . . . . . . .39 Intermediate Operating Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 Intermediate Applications Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
35、. . . .41 Recommended References for Holography/Shearography Training . . . . . . . . . . . . . . . . . . . . . . . . .43 Laser Testing Methods Profilometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 Recommended Training for Level I Laser Methods .
36、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46 Laser Profilometry Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46 Recommended Training for Level II Laser Methods . . . . . . . . . . . . . . . . . . . . . . . .
37、 . . . . . . . . . . . .46 Laser Profilometry Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46 v Recommended Training for Level III Laser Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 Laser Profilometry Test
38、ing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 Recommended Training References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49 Leak Testing Methods . . . . . . . . . . . . . . . . . . . . . . . . . .
39、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51 Recommended Training for Level I Leak Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52 Fundamentals in Leak Testing Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
40、 .52 Safety in Leak Testing Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 Leak Testing Methods Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54 Recommended Training for Level II Leak Testing . . . .
41、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 Principles of Leak Testing Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 Pressure and Vacuum Technology Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58 Le
42、ak Test Selection Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60 Leak Testing Method(s) Level III Topical Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60 Recommended Training References . . . . . . . . . . . .
43、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65 Liquid Penetrant Testing Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67 Recommended Training for Level I Liquid Penetrant Testing . . . . . . . . . . . . . . . . . . . .
44、 . . . . . . .68 Recommended Training for Level II Liquid Penetrant Testing . . . . . . . . . . . . . . . . . . . . . . . . . .68 Liquid Penetrant Testing Method Level III Topical Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . .69 Recommended Training References . . . . . . . . . . .
45、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71 Magnetic Particle Testing Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73 Recommended Training for Level I Magnetic Particle Testing . . . . . . . . . . . . . . . .
46、. . . . . . . . . .74 Recommended Training for Level II Magnetic Particle Testing . . . . . . . . . . . . . . . . . . . . . . . . .76 Magnetic Particle Testing Method Level III Topical Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . .78 Recommended Training References . . . . . . . . .
47、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79 Neutron Radiographic Testing Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81 Recommended Training for Level I Neutron Radiographic Testing . . . . . . . . . . . . . . .
48、 . . . . . . . .82 Neutron Radiographic Equipment Operating and Emergency Instructions Course . . . .82 Basic Neutron Radiographic Physics Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83 Basic Neutron Radiographic Technique Course . . . . . . . . . . . . . . . . . . . . .
49、. . . . . . . . . .84 Recommended Training for Level II Neutron Radiographic Testing . . . . . . . . . . . . . . . . . . . . . .85 Neutron Radiographic Physics Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85 Neutron Radiographic Technique Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87 Neutron Radiographic Testing Method Level III Topical Outline . . . . . . . . . . . . . . . . . . . . . . . .89 Recommended Training References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .