46 C.F.R. § 154.709 Cargo boil-off as fuel: Gas detection equipment.
Title 46 - Shipping
(a) The continuous gas detection system required under §154.706(a)(2) and (b) must: (1) Meet §154.1350(c), (d), and (j) through (s); and (2) Have a device that: (i) Activates an audible and visual alarm at the machinery control station and in the wheelhouse if the methane concentration reaches 1.5 percent by volume; and (ii) Closes the master gas fuel valve required under §154.708(c) before the methane concentration reaches 3 percent by volume. (b) The number and arrangement of gas sampling points must be specially approved by the Commandant (G-MSO). [CGD 74–289, 44 FR 26009, May 3, 1979, as amended by CGD 82–063b, 48 FR 4782, Feb. 3, 1983]
Title 46: Shipping
PART 154—SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES
Subpart C—Design, Construction and Equipment
Cargo Pressure and Temperature Control
§ 154.709 Cargo boil-off as fuel: Gas detection equipment.
