154.615—Design temperature below 0 °C (32 °F) and down to −55 °C (−67 °F).
Plates, forgings, forged or rolled or forged bars and shapes for cargo tanks and secondary barriers for a design temperature below 0 °C (32 °F) and down to −55 °C (−67 °F) must meet § 54.25-10 of this chapter.