§154.405. Design vapor pressure (P o ) of a cargo tank.
46 C.F.R. § 154.405
The design vapor pressure (Po) of a cargo tank must be equal to or greater than the MARVS.
The Po of a cargo tank must be equal to or greater than the vapor pressure of the cargo at 45 °C (113 °F) if:
The cargo tank has no temperature control for the cargo; and
The vapor pressure of the cargo results solely from ambient temperature.
The Po of a cargo tank may be exceeded under harbor conditions if specially approved by the Commandant (CG-ENG).
Notes, amendments, and revision history
Amendments
[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR 4782, Feb. 3, 1983]
Authority
Authority: 46 U.S.C. 3703, 9101; Department of Homeland Security Delegation No. 0170.1.
Source
Source: CGD 74-289, 44 FR 26009, May 3, 1979, unless otherwise noted.
Amendments
[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR 4782, Feb. 3, 1983]