49 CFR 172 Special Provision TP7 (TP-Codes)

These provisions apply to the transportation of hazardous materials in IM and UN Specification portable tanks.

Code	TP7
Description	The vapor space must be purged of air by nitrogen or other means.
HazMat with this Code	UN 1089 - Acetaldehyde UN 1092 - Acrolein, stabilized UN 3401 - Alkali metal amalgam, solid UN 3402 - Alkaline earth metal amalgams, solid UN 1724 - Allyltrichlorosilane, stabilized UN 2870 - Aluminum borohydride or Aluminum borohydride in devices UN 1728 - Amyltrichlorosilane UN 1553 - Arsenic acid, liquid UN 1854 - Barium alloys, pyrophoric UN 2965 - Boron trifluoride dimethyl etherate UN 1747 - Butyltrichlorosilane UN 1402 - Calcium carbide UN 1131 - Carbon disulfide UN 1753 - Chlorophenyltrichlorosilane UN 2986 - Chlorosilanes, corrosive, flammable, n.o.s UN 2987 - Chlorosilanes, corrosive, n.o.s UN 2985 - Chlorosilanes, flammable, corrosive, n.o.s UN 3362 - Chlorosilanes, toxic, corrosive, flammable, n.o.s UN 3361 - Chlorosilanes, toxic, corrosive, n.o.s UN 2988 - Chlorosilanes, water-reactive, flammable, corrosive, n.o.s UN 1762 - Cyclohexenyltrichlorosilane UN 1763 - Cyclohexyltrichlorosilane UN 2434 - Dibenzyldichlorosilane UN 1766 - Dichlorophenyltrichlorosilane UN 1767 - Diethyldichlorosilane UN 1162 - Dimethyldichlorosilane UN 1769 - Diphenyldichlorosilane UN 1771 - Dodecyltrichlorosilane UN 1183 - Ethyldichlorosilane UN 2983 - Ethylene oxide and propylene oxide mixtures, with not more than 30 percent ethylene oxide UN 2435 - Ethylphenyldichlorosilane UN 1196 - Ethyltrichlorosilane UN 1781 - Hexadecyltrichlorosilane UN 1784 - Hexyltrichlorosilane UN 1415 - Lithium UN 2881 - Metal catalyst, dry UN 1242 - Methyldichlorosilane UN 2437 - Methylphenyldichlorosilane UN 1250 - Methyltrichlorosilane UN 1799 - Nonyltrichlorosilane UN 1800 - Octadecyltrichlorosilane UN 1801 - Octyltrichlorosilane UN 3392 - Organometallic substance, liquid, pyrophoric UN 3394 - Organometallic substance, liquid, pyrophoric, water-reactive UN 3398 - Organometallic substance, liquid, water-reactive UN 3399 - Organometallic substance, liquid, water-reactive, flammable UN 3391 - Organometallic substance, solid, pyrophoric UN 3393 - Organometallic substance, solid, pyrophoric, water-reactive UN 3395 - Organometallic substance, solid, water-reactive UN 3396 - Organometallic substance, solid, water-reactive, flammable UN 3397 - Organometallic substance, solid, water-reactive, self-heating UN 1804 - Phenyltrichlorosilane UN 2447 - Phosphorus white, molten UN 2257 - Potassium UN 1422 - Potassium sodium alloys, liquid UN 3404 - Potassium sodium alloys, solid UN 3403 - Potassium, metal alloys, solid UN 1280 - Propylene oxide UN 1816 - Propyltrichlorosilane UN 2845 - Pyrophoric liquids, organic, n.o.s UN 1383 - Pyrophoric metals, n.o.s., or Pyrophoric alloys, n.o.s UN 3200 - Pyrophoric solid, inorganic, n.o.s UN 1818 - Silicon tetrachloride UN 1428 - Sodium UN 3254 - Tributylphosphane UN 1295 - Trichlorosilane UN 1298 - Trimethylchlorosilane UN 1303 - Vinylidene chloride, stabilized UN 1305 - Vinyltrichlorosilane UN 3129 - Water-reactive liquid, corrosive, n.o.s UN 3148 - Water-reactive liquid, n.o.s UN 3131 - Water-reactive solid, corrosive, n.o.s UN 2813 - Water-reactive solid, n.o.s UN 2008 - Zirconium powder, dry

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