TABLE IV
EXAMINATIONS AND TESTS FOR VARIOUS MATERIALS AND SERVICES
Examinations or Tests Required
___________________________________________________________________________
[Magnetic Particle]
Material or
[or] [Liquid
Ultra-
Application
Visual Radiographic
Penetrant]
sonic
___________________________________________________________________________
Stainless steel to
carbon steel
a. Completed weld
Yes [No][Yes]
Yes(PT only)
No
[Random]
Carbon steel piping
systems
a. Tack welds
Yes
No
No
No
b. Root passes
Yes
No
[No][Yes MT]
No
c. Intermediate passes
Yes
No
No
No
d.
Completed weld
Yes
[100 percent] [No][Yes MT]
No
[Random]
___________________________________________________________________________
**************************************************************************
NOTE: Regarding Table V, information based on the
table must be developed and included in each project
specification. Tables must clearly define the
systems to be inspected and the type of NDE
required. Specify 100 percent NDE when required by
DM-22 and 49 CFR 195, as covered by paragraph
entitled "Piping Subject to 100 Percent NDE."
**************************************************************************
TABLE V
MANDATORY MINIMUM NONDESTRUCTIVE EXAMINATIONS FOR ASME B31.1 PIPING
___________________________________________________________________________
Temperatures over
Temperatures between
All others
400 degrees C and
175 degrees C and
at all pressures.
400 degrees C
inclusive and at
all pressures over
7100 kPa gage
___________________________________________________________________________
Buttwelds
RT for DN over
RT for over 50 mm
Visual for
(Girth and
50 mm MT or PT
DN with thickness
all sizes
Longitudinal)
for DN 50 mm
over 19 mm. Visual
and
and less.
for all sizes with
thicknesses.
thickness 19 mm
or less.
Welded Branch
RT for DN over
RT for branch over
Visual for
Connections
50 mm MT or PT
100 mm DN and
all sizes
(Size indicated
for DN 50 mm
thickness of branch
and
is Branch Size)
and less.
over 19 mm. Visual
thicknesses.
SECTION 15216N
Page 23
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