than the established reject/repair line.
c. Any discontinuity with a reflection equal to or exceeding 25
percent of the reject/repair line, up to and including the
reject/repair line, shall be rejected where the discontinuity length
exceeds 1/2 T or 25 mm 1 inch.
d. Adjacent discontinuities separated by sound metal with the
dimension less than twice the length of the longest discontinuity shall
be considered a single discontinuity. The maximum distance between the
outer extremities of any two such discontinuities or the sum of their
lengths, whichever is greater, shall not exceed the limits specified.
e. If the total cumulative length of the discontinuities in any 300 mm
12 inches of weld length exceeds T, that weld length shall be rejected.
3.4.1.2
Class II
Welds shall be rejected on the basis of the following:
a. Any evidence of a crack, including those revealed by dye penetrant
or magnetic particle inspection in accordance with paragraph GENERAL
ACCEPTANCE/REJECTION REQUIREMENTS.
b. Any discontinuity with a reflection exceeding the established
reject/repair line and with a length exceeding 6 mm 1/4 inch. Adjacent
discontinuities separated by sound metal with the dimension less than
twice the length of the longest discontinuity shall be considered a
single discontinuity.
c. Any discontinuity with a
reflection greater than or equal to or 50
percent of the reject/repair
line, up to and including the
reject/repair line, shall be
rejected if the discontinuity length
exceeds T. In no case shall
any single discontinuity length exceed 38
mm 1-1/2 inches.
d. Adjacent discontinuities separated by sound metal with the
dimension less than twice the length of the longest discontinuity shall
be considered a single discontinuity. The maximum distance between the
outer extremities of any two adjacent discontinuities or the sum of
their lengths, whichever is greater, shall not exceed the length as
specified above.
e. If the total cumulative length of discontinuities in any 300 mm 12
inches of weld length exceeds 2 T, that weld length shall be rejected.
3.4.1.3
Class III
Welds shall be rejected on the basis of the following:
a. Any discontinuity with a reflection exceeding the established
reject/repair line and with a length exceeding 13 mm 1/2 inch.
Adjacent discontinuities separated by sound metal with a dimension less
than twice the length of the longest discontinuity shall be considered
a single discontinuity.
b. Any discontinuity with a reflection greater than or equal to 50
percent of the reject/repair line, or with the level 8 dB more than the
reject/repair line, and with a length (L) exceeding 50 mm 2 inches or
SECTION 05091A
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