Pipelaying Tender-VOL IV - WorleyParsons.com

EPMC SERVICES FOR REWARI–KANPUR PIPELINE
SPECIFICATION FOR PIPELINE BARRED TEE
5. INSPECTION AND TESTING
5.1 Non-destructive testing
All personnel performing Non-destructive Tests (NDT) shall be qualified in the technique
applied, in accordance with ASNT-TC-1A Level II by a third party, or equivalent approved by
the OWNER. Original certificates shall be made available for inspection by Owner's
REPRESENTATIVE at the Vender's / Contractor's premises, if required. Personnel
interpreting results of any non-destructive testing shall be qualified by a third party to SNT-
TC-1A, levels II or III.
All Non-destructive testing (NDT) shall be performed in accordance with written procedures.
These procedures shall have the prior approval of the OWNER. NDT shall be carried out on
tees after all mechanical testing and manufacturing stages and any heat treatment have been
completed.
5.2 Visual Inspection
100% Visual Inspection The body of every fitting shall be examined internally and externally
for surface defects. The surfaces of the fittings shall be free from all dents, gouges, laps,
score marks, arc strikes, laps, undercuts or other detrimental defects. Welds shall be
inspected for 100% of the length, both outside and inside. The requirements of Workmanship
and defects shall be as per the connected line pipe specification. Defects shall be removed by
grinding or by weld repair, except that weld repair is not allowed on the body of the tee. Weld
repairs shall be qualified and carried out in accordance with the applicable line pipe
specification.
5.3 Non-destructive testing of fittings shall include:
• 100 percent radiographic testing of all seam welds. Radiography of seam welds shall
be in accordance with ASME VIII Div 1, Clause UW - 51. For butt welds in tees, with a
thickness greater than 20 mm (0.8 inches), radiographic inspection may be replaced
by ultrasonic inspection, at the discretion of owner.
For the acceptance of radiographic films, the technique used shall result in sensitivity
better than 2% of the thickness of the weld metal and a relative film density of 2.0 to
3.5 in the weld metal.
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