SNT - TC -lA 2006
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1.0 Scope ;gmmOO
1. 1 It is recognized that the effectiveness of nondestructive testing (NDT) applications depends upon
the capabilities of the personnel who are responsible for and perform NDT. This Recommended r;r
Practice has been prepared to establish guidelines for the qualification and certification of NDT
personnel whose specific jobs require appropriate knowledge of the technical principles underlying
the nondestructive tests they perform, witness, monitor, or evaluate.
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1. 2 This document provides guidelines for the establishment of a qualification and certification pro
gram.
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1. 3 These guidelines have been developed by the American Society for.Nondestructive Testing, Inc. ,
to aid employers in recognizing the essential factors to be considered in qualifying personnel en
gaged in any of the NDT methods listed in Section 3.
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1. 4 It is recognized that these guidelines may not. be appropriate for certain employers' circumstances .
and!or applieations. In developing. a written practice as .required in Section 5 , the employer
should review the detailed recommendations presented herein and modify them, as necessary, to
meet particular needs.
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2.0 Definitions JES(
2. 1 Terms included in this document are defined as follows:
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2. 1. 1 Certification: written testimony of qualification.
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2. 1. 2 Certifying Authority: the person or persons properly designated in the written practice to
sign certifications on behalf of the employer.
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2. 1. 3 Certifying Agency: the employer of the personnel being certified.
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2. 1. 4 Closed Book Examination: an examination administered without access to reference material
except for. materials supplied with or in the examination. (See 8.7. )
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2. 1.5 Comparable: being at an equivalent or similar level of NDT responsibility and difficulty as
determined by the employers level m.
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2. 1. 6 Documented: the condition of being in written form.
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2. 1. 7 Employer: the corporate, private, or public entity, which employs personnel for wages,
salary, fees, or other considerations.
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2. 1. 8 Experience: work activities accomplished in a specific NDT method under the direction of
qualified supervision including the performance of the NDT method and related activities
but not including time spent in organized training programs.
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2. 1.9 limited Certification: nondestructive test methods may be further subdivided into limited
disciplines or techniques to meet specific employer 's needs; these are Level II certifica
tions, but to a limited scope.
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2. 1. 10 Nondestructive Testing: a process that involves the inspection, testing, or evaluation of
materials, components and assemblies for materials' discontinuities, properties and ma
chine problems without further impairing or destroying the parts serviceability.· Through
out this document the term NDT applies equally to the NDT methods used for material in
spection, flaw detection or predictive maintenance (PdM) applications.
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2. 1. 11 Outside Agency: a company or individual who provides NDT Level ffi services and whose
qualifications to provide these services have been reviewed and approved by the employer
engaging the company or individual.
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2. 1. 12 Qualification: demonstrated skill and knowledge, documented training and documented ex
perience required for personnel to properly perform the duties of a specific job.
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2. 1. 13 Recommended Practice: a set of guidelines to assist the employer in developing uniform
procedures for the qualification and certification of NDT personnel to satisfy the employer
s specific requirements.
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2. 1. 14 Training: an organized program developed to impart the knowledge and skills necessary for
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qualification.
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