American Petroleum Institute Handbook Revision …
9) CVN impact test of the pipe body of PSL 2 welded pipe with D < 508 mm (20.000 in) for shear fracture area (see 9.8.2.2 and Table 18), 10) CVN impact test of the longitudinal seam weld of PSL 2 HFW pipe (see 9.8.3 and Table 18), 11) DWT test of the pipe body of PSL 2 welded pipe with D ≥ 508 mm (20.000 in) (see 9.9.1 and Table 18),