Welding procedure tests for contiguous hull structure designed for a temperature colder than -18 °C (0 °F) must meet § 54.05-15 and subpart 57.03 of this chapter.
46 C.F.R. §154.180
Welding procedure tests for contiguous hull structure designed for a temperature colder than -18 °C (0 °F) must meet § 54.05-15 and subpart 57.03 of this chapter.
46 C.F.R. §154.180