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|  MIL-R-45774A (MI)
2.3 Order of precedence. In the event of a conflict between the text of this
document and the references cited herein, the text of this document takes precedence.
Nothing in this document, however, supersedes applicable laws and regulations unless
a specific exemption has been obtained.
3. REQUIREMENTS
3.1 Type of identification. Type radiographs of defects, which ;are part of this
specification, bear identification numbers to which references are made in tables I and
II.
3.2 Designation of standards. Tables I and II provide five standards for the
soundness of welds, depicting gradations of soundness conditions. The designations of
the standards shall be used in connection with the radiographic position charts to
indicate the standard of soundness required in each area to be inspected
radiographically.
3.3 Comparison of type radiographs. Radiographs of production welded units
submitted for inspections shall be compared with the type radiographs forming part of
the specification. The soundness condition represented by the type radiographs shall
be considered: acceptable, borderline, or unacceptable, as indicated in tables I and II,
for the standard which is applicable to the area being inspected.
3.4 Acceptance criteria. When a particular standard is called for at any
location in a position chart, the defect indicated as unacceptable, as indicated in tables
I and II, shall be grounds for rejecting the weldment.
3.4.1 Borderline. When fusion or linear porosity conditions are passable, but
at the limit of acceptability as defined by rules 1 through 7, inclusive (see 4.4) the
defect shall be regarded as borderline for the purpose of this specification.
3.4.2 Acceptability. The following instructions shall apply in determining
acceptability according to the standard where borderline conditions exist according to
tables I and II, and where one or more types of defects are found in any weld.
3.4.2.1 Single type of defects. When the production radiographs show but one
type of defect which is equal to or better than the borderline for the acceptable
standard, the corresponding portion of the weldment shall be acceptable without repair.
If the defects are larger or more numerous than indicated by the borderline for the
standard, the weldment shall be rejected.
3
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