46 C.F.R. § 154.560 Cargo hose: Prototype test.
Title 46 - Shipping
(a) Each cargo hose must be of a type that passes a prototype test at a pressure of at least five times its maximum working pressure at or below the minimum service temperature. (b) Each cargo hose must not be the hose used in the prototype test.
Title 46: Shipping
PART 154—SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES
Subpart C—Design, Construction and Equipment
Cargo Hose
§ 154.560 Cargo hose: Prototype test.

