prohibit the loading of such cylinders on any motor vehicle having a floor or platform and racks as hereinbefore described. (1) Cylinders, horizontal. Cylinders containing compressed gases shall be loaded in a horizontal position unless packed in boxes or crates of such dimensions as to prevent their overturning, or unless loaded into racks securely attached to the motor vehicle, or unless so securely lashed in an upright position as to prevent their overturning. (b) Portable tank containers containing compressed gases shall be loaded on motor vehicles only as follows: (1) Onto a flat floor or platform of a motor vehicle. (2) Onto a suitable frame of a motor vehicle. (3) In either such case, such containers shall be safely and securely blocked or held down to prevent movement relative to each other or to the supporting structure when in transit, particularly during sudden starts and stops and changes of direction of the vehicle. (4) Requirements of subparagraphs (1) and (2) of this paragraph shall not be construed as prohibiting stacking of containers, provided the provisions of subparagraph (3) of this paragraph are fully complied with. (c) Tanks complying with specification 106A500 (§ 78.275 of this chapter), containing chlorine, anhydrous ammonia, sulfur dioxide, methyl chloride, dichlorodifluoromethane, monochlorodifluoromethane, monochlorotetrafluoroethane, vinyl chloride, inhibited, difluoroethane, difluoromonochloroethane, dispersant gas, n. o. s., or dichlorodifluoromethane and difluoroethane mixture (constant boiling mixture), or tanks complying with specification 106A800 (§ 78.276 of this chapter), containing hydrogen sulfide, may be transported on trucks or semitrailers only, when securely chocked or clamped thereon to prevent shifting, and provided adequate facilities are present for handling tanks where transfer in transit is necessary. See § 74.560 (b) (1) of this chapter, for rail freightmotor vehicle shipments. (d) Engine to be stopped in tank motor vehicles, except for transfer pump. No flammable compressed gas shall be loaded into or on or unloaded from any tank motor vehicle with the engine running unless the engine is used for the operation of the transfer pump of the vehicle. Unless the delivery hose is equipped with a shut-off valve at its discharge end, the engine of the motor vehicle shall be stopped at the finish of such loading or unloading operation while the filling or discharge connections are disconnected. § 77.841 Poisons. (See also § 77.834 (a) to (k).) (a) Arsenical compounds in bulk. Care shall be exercised in the loading and unloading of "arsenical dust", "arsenic trioxide", and "sodium arsenate", allowable to be loaded into sift-proof, steel hopper-type or dumptype motor-vehicle bodies equipped with water-proof, dust-proof covers well secured in place on all openings, to accomplish such loading with the minimum spread of such compounds into the atmosphere by all means that are practicable; and no such loading or unloading shall be done near or adjacent to any place where there are or are likely to be, during the loading or unloading process assemblages of persons other than those engaged in the loading or unloading process, or upon any public highway or in any public place. (b) No class A or class C poisons in cargo tanks. No dangerous poison, class A, or any tear gas or irritating substance, class C, may be loaded into or transported in any cargo tank. (c) Class A or class C poisons. It shall not be permissible to transport class A or class C poisons if there be any interconnecting means of any character between the containers. (d) Radioactive material. A container of radioactive material, red label, must not be placed in vehicles, terminals, or other places closer than 3 feet to an area which may be continuously occupied by passengers, employees, or shipments of animals. When more than one such container is present, the distance from occupied areas must be computed from the table in subparagraph (1) of this paragraph by adding the number of units shown on labels on the containers. (1) A container of radioactive material, red label, must not be placed closer than 15 feet to any package containing undeveloped film. If more than one such container is present the distance must be computed from the table in (2) Not more than 40 units of radioactive material, red label, shall be transported in any vehicle or stored in a terminal at one time. Packages must be so blocked or braced in vehicles as to prevent any shift of lading under conditions normally incident to transportation. (3) All containers of radioactive material, red label, must be carried by the handles when handles are provided. (4) Radioactive materials (class D poisons) must not be loaded in the same vehicle with Class A explosives. (5) If for any reason, a package containing radioactive materials, red label, would otherwise remain in the same building for a period longer than 24 hours, it must be moved to a different location after each 24 hours. Other Dangerous Articles shown in this section. must not be loaded, transported or stored together, except as provided in SUBPART CLOADING AND STORAGE CHART OF EXPLOSIVES AND OTHER DANGEROUS ARTICLES § 77.848 Loading and storage chart of explosives and other dangerous articles. (a) Explosives or other dangerous articles the Loading and Storage Chart of Explosives and Low explosives or black powder High explosives, and smokeless powder for small arms in quantity exceeding 50 pounds net weight Initiating or priming explosives, wet: Diazodinitrophenol, fulminate of mercury, guanyl nitrosamino guanylidene hydrazine, lead azide, lead styphnate, nitro mannite, nitrosoguanidine. pentaerythrite tetranitrate, tetrazene Blasting caps with or without safety fuse (including electric blasting caps), detonating primers Ammunition for cannon with explosive projectiles, gas projectiles, smoke projectiles, incendiary projectiles, illuminating projectiles or shell, ammunition for small arms with explosive bullets, or ammunition for small arms with explosive projectiles, or rocket ammunition with explosive projectiles, gas projectiles, smoke projectiles, incendiary projectiles or illuminating projectiles. Explosive projectiles, bombs, torpedoes, or mines, rifle or hand grenades (explosive), jet thrust units (jato), class A. Detonating fuzes, boosters (explosive) Ammunition for cannon with empty, inert-loaded or solid projec- tical column Blasting caps, with or without safety fuse Ammunition for cannon with explosive pro- Explosive projectiles, bombs, torpedoes, or CLASS B EXPLOSIVES X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Other Dangerous Articles shown in this section. must not be loaded, transported or stored together, except as provided in SUBPART C-LOADING AND STORAGE CHART OF EXPLOSIVES AND OTHER DANGEROUS ARTICLES § 77.848 Loading and storage chart of explosives and other dangerous articles. (a) Explosives or other dangerous articles the Loading and Storage Chart of Explosives and Low explosives or black powder High explosives, and smokeless powder for small arms in quantity exceeding 50 pounds net weight Initiating or priming explosives, wet: Diazodinitrophenol, fulminate of mercury, guanyl nitrosamino guanylidene hydrazine, lead azide, lead styphnate, nitro mannite, nitrosoguanidine, pentaerythrite tetranitrate, tetrazene Blasting caps. with or without safety fuse (including electric blasting caps), detonating primers Ammunition for cannon with explosive projectiles, gas projectiles, smoke projectiles, incendiary projectiles, illuminating projectiles or shell, ammunition for small arms with explosive bullets, or ammunition for small arms with explosive projectiles, or rocket ammunition with explosive projectiles, gas projectiles, smoke projectiles, incendiary projectiles or illuminating projectiles. Explosive projectiles, bombs, torpedoes, or mines, rifle or hand grenades (explosive), jet thrust units (jato), class A. Detonating fuzes, boosters (explosive) Ammunition for cannon with empty, inert-loaded or solid projec- tical column |