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Home » Annex E

Annex E(normative)

Non-destructive inspection for other than sour service or offshore service


E.2 Standard practices for inspection
Except as specifically modified in this annex, the required non-destructive inspection, other than for surface inspection (see 10.2.7) and wall-thickness verification, shall be performed in accordance with one of the following standards or an equivalent:

a)
electromagnetic (flux leakage):
ISO 9402, ISO 9598 or ASTM E 570;
b)
electromagnetic (eddy-current):
ISO 9304 or ASTM E 309;
c)
ultrasonic:
ISO 9303, ISO 9305, ISO 10124, ISO 11496, ISO 12094, ISO 13663 or
ASTM E 213; ASTM A 435 or ASTM A 578;
d)
ultrasonic (weld seam):
ISO 9764, ISO 9765 or ASTM E 213;
e)
magnetic particle:
ISO 13664, ISO 13665 or ASTM E 709;
f )
radiographic:
ISO 12096 or ASTM E 94;
g)
liquid penetrant:
ISO 12095 or ASTM E 165.

Table E.1 -- Pipe-weld seam non-destructive inspection

Weld seam type Non-destructive Inspection method a
Electromagnetic Ultrasonic Rodiographic
EW
one method or a combination of methods is required
not applicable
LW not applicable required not applicable
SAW not applicable required b if agreed
COW not applicable required not applicable
Strip/plate end not applicable required b if agreed
a    The weld seam at the pipe ends may require additional inspection (see E.3.2).
b     Required unless the manufacturer and the purchaser have agreed to replace it by radiographic nspection.

Table E.2 -- SMLS pipe body non-destructive Inspection
Item Non-destructive Inspection
Electromagnetic Ultrasonic Magnetic particle
(circular field)
PSL 2 pipe, any grade
one method or a combination of methods is required
PSL 1 pipe, Grade L245 or B,quenched and tempered
one method or a combination of methods is required
PSL 1 pipe, other than above
if agreed, one method or a combination of methods is required