ASME BPVC V 2023

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SUBSECTION A
NONDESTRUCTIVE METHODS OF
EXAMINATION
ARTICLE 1
GENERAL REQUIREMENTS
T-110 SCOPE
a This Section of the Code contains requirements,
methods, and techniques for nondestructive examination
NDE, which are Code requirements to the extent that
they are specifically referenced and required by other
Code Sections or referencing documents. These NDE
methods are intended to detect surface and internal imperfections
in materials, welds, fabricated parts, and components.
Nonmandatory Appendix A of this Article
provides a listing of common imperfections and damage
mechanisms, and the NDE methods that are generally
capable of detecting them.
b For general terms such as inspection, flaw, discontinuity,
evaluation, etc., refer to Mandatory Appendix I.
c New editions of Section V may be used beginning
with the date of issuance and become mandatory 6
months after the date of issuance unless modified by
the referencing document.
d Code Cases are permissible and may be used, beginning
with the date of approval by ASME. Only Code Cases
that are specifically identified as being applicable to this
Section may be used. At the time a Code Case is applied,
only the latest revision may be used. Code Cases that have
been incorporated into this Section or have been annulled
shall not be used, unless permitted by the referencing
Code. Qualifications using the provisions of a Code Case
remain valid after the Code Case is annulled. The Code
Case number shall be listed on the NDE Procedure or Personnel
Certification, as applicable.
T-120 GENERAL
a Subsection A describes the methods of nondestructive
examination to be used if referenced by other Code
Sections or referencing documents.
b Subsection B lists Standards covering nondestructive
examination methods which have been accepted as
standards. These standards are not mandatory unless
specifically referenced in whole or in part in Subsection
A or as indicated in other Code Sections or referencing
documents. Where there is a conflict between Subsection
A and Subsection B, the requirements of Subsection A
take precedence.
c Any reference to a paragraph of any Article in Subsection
A of this Section includes all of the applicable rules

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in the paragraph. In every case, reference to a paragraph
includes all the subparagraphs and subdivisions under
that paragraph.
NOTE: For example, a reference to T-270 includes all of the rules
contained in T-271 through T-277.3.
d Reference to a standard contained in Subsection B
is mandatory only to the extent specified.
NOTE: For example, T-233 requires that Image Quality Indicators be
manufactured and identified in accordance with the requirements or
alternatives allowed in SE-747 or SE-1025, and Appendices, as appropriate
for the style of IQI to be used. These are the only parts
of either SE-747 or SE-1025 that are mandatory in Article 2. In many
cases, Subsection B documents are not mandatory and are
intended only for guidance or reference use.
e For those documents that directly reference this
Article for the qualification of NDE personnel, the qualification
shall be in accordance with their employers written
practice. This written practice shall address the
methods and techniques that are applicable to the organizations
operations and shall be in accordance with one of
the following documents:
1 SNT-TC-1A 2020 Edition,1 Personnel Qualification
and Certification in Nondestructive Testing, with
the following exceptions:
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ASME BPVC.V-2023 ARTICLE 1