For All IBR Lines (under IBR code, clause 360)

Class I piping

Where the completed pipelines are not tested by the application of hydraulic pressure, the welds shall be subjected to the following inspection procedure:

1CYJ255529174-38, 54,55,56(open to trench)57,58,59,60(open to trench),61,73,74,75

Ø125,Ø150,ø250 –Butt Weld-100%RT or other approved methods (5 welds of each welder subject to RT, if found satisfactory, Chief Inspector may give waiver)Ø100, ø80,ø65,ø50,ø40-Butt weld – 5%RT or other approved methods (min 2 welds/welder)Ø25-Butt weld – 2% of total welds cutout for visual inspection & Bend Test

Important Note: for any size socket weld – specific NDT not mentioned

Class I piping

Where the completed pipelines are tested by the application of hydraulic pressure, the welds shall be subjected to the following inspection procedure:

1CYJ255529174-38, 54,55,56(open to trench)57,58,59,60(open to trench),61,73,74,75

Ø125,Ø150,ø250 –Butt Weld-10%RT or other approved methods (2 welds per welder)Ø100, ø80,ø65,ø50,ø40-Butt weld – 2%RT or other approved methods (min 1 welds per welder)Ø25-Butt weld – 2% of total welds cutout for visual inspection & Bend Test(No RT)

Class II Piping

1CYJ255529174-50,51,52,53,62,63,64

All pipelines under this classification shall be subjected to hydraulic test on completion of erection

More than Ø100 - 5%RT or other approved methods (min 2 welds/welder)Ø100 and less - 1%RT or other approved methods (min 1welds/welder)