15-26-740 Tank cars – Unloading procedure.

   Tank car unloading of liquefied petroleum gas shall comply with Sections 15-26-220 through 15-26-270 and 15-26-290 through 15-26-320 inclusive, with the following exceptions:

   1.   The piping system shall comply with Section 23 of National Fire Protection Association Pamphlet No. 58 entitled “Standard for the Storage and Handling of Liquefied Petroleum Gas”, 1973 Edition. The maximum pipe size used shall be four inches;

   2.   One shutoff valve shall be installed near the tank car and near the tank or building, and both shall be accessible;

   3.   A hydrostatic relief valve shall be provided in accordance with the requirements of Section 236 of National Fire Protection Association Pamphlet No. 58 entitled “Standard for the Storage and Handling of Liquefied Petroleum Gas”, 1973 Edition;

   4.   Lines for liquefied petroleum gas need not be installed in concrete trenches or steel conductor pipe;

   5.   Pressure in tank cars may be increased to allow transfer by use of a compressor or some other suitable means.

(Coun. J. 12-9-92, p. 25465; Amend Coun. J. 2-7-96, p. 15616)