49 C.F.R. 49 CFR--PART 171
Title 49 - Transportation
Effective Date(s): September 11, 2006 8. In §171.8, definitions for “bundle of cylinders,” “multiple element gas container or MEGC,” “settled pressure,” “UN cylinder,” “UN pressure receptacle,” “UN tube” and “working pressure” are added in alphabetical order to read as follows: * * * * * Bundle of cylinders means assemblies of UN cylinders fastened together and interconnected by a manifold and transported as a unit. The total water capacity for the bundle may not exceed 3,000 L, except that a bundle intended for the transport of gases in Division 2.3 is limited to a water capacity of 1,000 L. * * * * * Multiple-element gas container or MEGC means assemblies of UN cylinders, tubes, or bundles of cylinders interconnected by a manifold and assembled within a framework. The term includes all service equipment and structural equipment necessary for the transport of gases. * * * * * Settled pressure means the pressure exerted by the contents of a UN pressure receptacle in thermal and diffusive equilibrium. * * * * * UN cylinder means a transportable pressure receptacle with a water capacity not exceeding 150 L that has been marked and certified as conforming to the applicable requirements in part 178 of this subchapter. * * * * * UN pressure receptacle means a UN cylinder or tube. * * * * * UN tube means a seamless transportable pressure receptacle with a water capacity exceeding 150 L but not more than 3,000 L that has been marked and certified as conforming to the requirements in part 178 of this subchapter. * * * * * Working pressure for purposes of UN pressure receptacles, means the settled pressure of a compressed gas at a reference temperature of 15 °C (59 °F). * * * * *
Amendment from June 12, 2006
49 CFR--PART 171
Amendment(s) published June 12, 2006, in 71 FR 33875
§ 171.8 Definitions.
