49 CFR 178.337-14 - Gauging devices.
(a)Liquid level gauging devices. See § 173.315(h) of this subchapter.
(1) See § 173.315(h) of this subchapter.
(2) Each cargo tank used in carbon dioxide, refrigerated liquid or nitrous oxide, refrigerated liquid service must be provided with a suitable pressure gauge. A shut-off valve must be installed between the pressure gauge and the cargo tank.
(c)Orifices. See § 173.315(h) (3) and (4) of this subchapter.