tion, be shipped in specification containers as follows:

(1) Spec. 10C (§ 78.157 of this chapter). Wooden barrels or kegs.

(c) Paint, enamel, lacquer, stain, shellac, varnish, aluminum, bronze, gold, wood filler, liquid, and lacquer base liquid, and thinning, reducing and removing compounds therefor, and driers, liquid, therefor, in glass or earthenware containers of not over 1 quart capacity each, or metal containers of not over 5 gallons capacity each, packed in strong outside containers are exempt from specification packaging, marking, and labeling requirements when offered for transportation by rail freight, highway, or water execpt when offered for transportation by carrier by water, name of contents must be marked on outside container. Shipments for transportation by highway carriers are exempt also from Part 77, except § 77.817, and Part 197 of this chapter. When offered for transportation by rail express, such shipments are exempt from specification packaging, marking, and labeling requirements, except that packages having inside containers of over 1 quart capacity each must be marked with name of contents and bear the red label as prescribed in § 73.405. When fiberboard box is used for such shipments by rail freight, rail express, highway, or water, gross weight must not exceed 65 pounds.

(1) Because of the present emergency and until further order of the Commission, paint, varnish and lacquer may be shipped under the conditions prescribed in paragraph (c) of this section, in containers not exceeding 1 gallon capacity with fiberboard bodies and metal tops and bottoms made leakproof in lieu of glass, earthenware, or metal containers as specified.

[15 F.R. 8301, Dec. 2, 1950, as amended by Order 19, 20 F. R. 4414, June 23, 1955; Order 23, 21 F.R. 364, Jan. 19, 1956; Order 43, 25 F.R. 6625, July 14, 1960; Order 55, 27 F.R. 6737, July 17, 1962]

§ 73.129 Polishes, metal, stove, furniture and wood, liquid.

(a) Polishes, metal, stove, furniture and wood, liquid, must be packed in specification containers as follows:

(1) As prescribed in § 73.119, according to flash point, pressure, or viscosity.

(2) Spec. 37A or 37B (§ 78.131 or § 78.132 of this chapter). Metal drums (single-trip) not over 5 gallons capacity with welded side seams, irrespective of flash point or viscosity.

(b) Polishes, metal, stove, furniture and wood, liquid, in glass or earthenware containers of not over 1 quart capacity each, or metal containers not over 5 gallons capacity each, packed in strong outside containers are exempt from specification packaging, marking, and labeling requirements, except that marking name of contents on outside container is required for shipments via carrier by water. Shipments for transportation by highway carriers are exempt also from Part 77 of this chapter, except § 77.817, and Part 197 of this chapter. These exemptions do not apply to shipments offered for transportation by rail express. (See § 73.118 (b) for rail express exemptions.) [15 F.R. 8302, Dec. 2, 1950, as amended by Order 19, 20 F. R. 4414, June 23, 1955; Order 23, 21 F. R. 364, Jan. 19, 1956]

§ 73.130

Refrigerating machines.

(a) Refrigerating machines assembled for shipment and containing not over 15 pounds of a flammable liquid for their operation are exempt from specification packaging, marking, and labeling requirements, except that marking name of contents on outside container is required for shipments via carrier by water. Shipments for transportation by highway carriers are exempt also from Part 77 of this chapter, except § 77.817 and Part 197 of this chapter. [Order 23, 21 F. R. 364, Jan. 19, 1956]

§ 73.131 Road asphalt, or tar, liquid.

(a) Road asphalt, or tar, liquid, must be packed in specification containers as follows:

(1) As prescribed in § 73.119, according to flash point, pressure, or viscosity.

(2) Spec. 10C (§ 78.157 of this chapter). Wooden barrels or kegs, authorized only for material with flash point above 20° F.

[15 F.R. 8302, Dec. 2, 1950]

of this chapter), wooden barrels and kegs, must not be used.

NOTE 1: Because of the present emergency and until further order of the Commission, rubber cement containing no carbon bisulfide may be shipped in specification 10A (§ 78.155 of this chapter) wooden barrels or kegs.

(2) Spec. 52 (§ 78.246 of this chapter). Aluminum portable tanks. Authorized for materials irrespective of flash point but only those defined as viscous liquids by 73.115(b).

[Order 11, 18 F. R. 5272, Sept. 1, 1953, as amended by Order 20, 20 F. R. 8101, Oct. 28, 1955; Order 32, 22 F.R. 7836, Oct. 3, 1957; Order 43, 25 F.R. 6625, July 14, 1960]

§ 73.133 Spirits of nitroglycerin.

(a) Spirits of nitroglycerin must consist of not over 10 percent by weight of nitroglycerin in ethyl alcohol. Solutions of nitroglycerin must consist of not over 10 percent by weight of nitroglycerin in acetone. They must be packed in specification containers as follows:

(1) Spec. 15A, 15B, 15C, 16A, or 19A (§§ 78.168, 78.169, 78.170, 78.185, or 78.190 of this chapter). Wooden boxes lined with paraffined paper, spec. 2L (§ 78.30 of this chapter), and with metal inside containers, securely closed with rubber stoppers tied in place. The inside containers must be entirely surrounded by at least 2 inches of dry, fine sawdust or kieselguhr. There must be not over 6 quarts of the mixture in each outside container.

NOTE 1: Because of the present emergency and until further order of the Commission, spirits of nitroglycerin, consisting of not over 10 percent by weight of nitroglycerin in ethyl alcohol, may be shipped in glass bottles not over 2 quarts capacity, securely closed with rubber stoppers tied in place. Each inside container must be entirely surrounded by at least 2 inches of dry fine sawdust or kieselguhr. There must be not over 8 quarts of the mixture in each outside container.

(b) Spirits of nitroglycerin consisting of not over 1 percent by weight of nitroglycerin in ethyl alcohol, in addition to containers specified in paragraph (a) (1) of this section, may be packed in specification containers as follows:

(1) Spec. 15A, 15B, 15C, 16A, or 19A (§§ 78.168, 78.169, 78.170, 78.185, or 78.190 of this chapter). Wooden boxes, with glass inside containers not over 1 quart capacity each, cushioned by at least 2 inches of dry, fine sawdust or kieselguhr. [15 F.R. 8302, Dec. 2, 1950]

§ 73.134

Aluminum triethyl, aluminum trimethyl, pyroforic fuel, pyroforic solutions, zinc ethyl, triisobutyl aluminum, ethyl aluminum sesquichlo ride, diethyl aluminum chloride, ethyl aluminum dichloride, methyl aluminum sesquichloride, methyl aluminum sesquibromide, methylmagnesium bromide in ethyl ether in concentrations not over 40 percent, and mixtures or solutions thereof.

(a) Aluminum triethyl, aluminum trimethyl, pyroforic fuel, pyroforic solutions, zinc ethyl, triisobutyl aluminum, ethyl aluminum sesquichloride, diethyl aluminum chloride, ethyl aluminum dichloride, methyl aluminum sesquichloride, methyl aluminum sesquibromide, methyl magnesium bromide in ethyl ether in concentrations not over 40 percent, and mixtures or solutions thereof must be shipped in devices or apparatus of a type approved by the Bureau of Explosives or in specification containers as follows:

(1) Cylinders as prescribed for any compressed gas except acetylene.

(2) Spec. 105A300-W, 105A400-W, 105A500-W, 105A600-W, 106A500, 106A500-X, or 110A500-W (§ 78.286, 78.287, 78.288, 78.289, 78.275, or 78.293 of this chapter) tank cars. Authorized for aluminum triethyl, aluminum trimethyl, and mixtures or solutions thereof, pyroforic fuel, and triisobutyl aluminum, ethyl aluminum sesquichloride, diethyl aluminum chloride, ethyl aluminum dichloride, methyl aluminum sesquichloride, methyl aluminum sesquibromide, and mixtures or solutions thereof only. Specs. 106A500, 106A500-X and 110A500W tanks must not be filled to a density exceeding 80 percent of the water capacities of the tanks and tanks must be equipped with an approved spring-relief safety valve. Tanks must be loaded on cars and motor vehicles in such a manner that the safety relief valve will always be in the vapor phase.

NOTE 1: Tanks complying with ICC-106A or ICC-110A (§ 78.275 or § 78.293 of this chapter) specifications may be transported in or on motor vehicles and in the manner authorized in § 77.840 (c) of this chapter, provided adequate facilities are present for handling tanks where transfer in transit is necessary. Tanks must be securely chocked or clamped thereon to prevent shifting.

(3) Spec. 51 (§ 78.245 of this chapter). Portable tanks.

(4) Spec. MC 330 (§ 78.336 of this chapter). Tank motor vehicles having a

minimum design pressure of 250 pounds per square inch.

(5) Spec. 17C or 37A (§ 78.115 or 78.131 of this chapter). Metal drums (single-trip) with inside metal cans not over 1-gallon capacity each, constructed of not less than 28-gauge electro-coated tin plate. Inside containers shall have no opening exceeding 1-inch diameter and shall be closed with air-tight soldered screw-cap closures. Inside containers must be surrounded on all sides with incombustible cushioning material. Spec. 17C (§ 78.115 of this chapter) 30gallon capacity drums shall contain not more than 20 gallons of pyroforic solution per drum and 55-gallon capacity drums shall contain not more than 35 gallons of pyroforic solution per drum; each layer of inside containers must be separated by a tin plate separator in addition to cushioning material. Spec. 37A drums shall not exceed 5-gallons capacity each. Authorized only for pyroforic fuel mixed with solvent.

(b) Aluminum triethyl, aluminum trimethyl and mixtures or solutions thereof, pyroforic fuel, pyroforic solutions, zinc ethyl, triisobutyl aluminum, ethyl aluminum sesquichloride, diethyl aluminum chloride, ethyl aluminum dichloride, methyl aluminum sesquichloride, methyl aluminum sesquibromide, methyl magnesium bromide in ethyl ether in concentrations not over 40 percent, and mixtures or solutions thereof, when offered for transportation by rail express must be packed in glass ampules not over 2 ounces capacity each, securely cushioned with absorbent material in sufficient quantity to completely absorb contents in event of breakage, within an inside metal container, spec. 2R (§ 78.34 of this chapter) enclosed in a strong wooden box.

(c) Methyl magnesium bromide in ethyl ether in concentrations not over 40 percent must be packed in containers as prescribed by paragraphs (a) or (b), or in specification containers as follows:

(1) Spec. 12B (§ 78.205 of this chapter). Fiberboard boxes with inside glass bottles not over 1-quart capacity each. Authorized gross weight not over 65 pounds.

(2) Spec. 17C (§ 78.115 of this chapter). Metal drums (single-trip) with openings not exceeding 2.3 inches in diameter.

[Order 37, 24 F.R. 904, Feb. 6, 1959, as amended by Order 43, 25 F.R. 6625, July 14, 1960; Order 48, 26 F.R. 4995, June 6, 1961;

Order 53, 26 F.R. 12702, Dec. 29, 1961; Order 55, 27 F.R. 6737, July 17, 1962]

§ 73.135 Dimethyl dichlorosilane, ethyl dichlorosilane, ethyl trichlorosilane, methyl trichlorosilane, trimethyl chlorosilane, and vinyl trichlorosilane.

(a) Dimethyl dichlorosilane, ethyl dichlorosilane, ethyl trichlorosilane, methyl trichlorosilane, trimethyl chlorosilane, and vinyl trichlorosilane must be packed in specification containers as follows:

(1) Spec. 15A or 16B (§§ 78.168 or 78.186 of this chapter). Wooden boxes with glass inside containers not over 1 gallon capacity each securely closed and cushioned with incombustible absorbent material.

(2) Spec. 17H or 37A (§ 78.118 or § 78.131 of this chapter). Metal drums (single-trip) with glass inside containers not over 1 gallon capacity each securely closed and cushioned with incombustible absorbent material.

(3) Spec. 5A (§78.81 of this chapter). Metal drums not over 55 gallons capacity. (4) Spec. 5F (§ 78.85 of this chapter). Metal drums not over 11 gallons capacity.

(5) Spec. 5, 5B, 5C, and 17E (singletrip) (§§ 78.80, 78.82, 78.83, and 78.116 of this chapter). Metal drums. These containers not authorized for shipments by rail express.

(6) Specification cylinders as prescribed for any compressed gas, except acetylene.

(7) Spec. 103, 103-W, or 111A100-W-1 (§§ 78.265, 78.280, or 78.303 of this chapter). Tank cars, without bottom discharge outlet.

(8) Spec. 105A100, 105A100-W, 105A200-W, 105A300-W, or 111A100-W-4 (§§ 78.270, 78.285, 78.307, 78.286, or 78.306 of this chapter). Tank cars.

(9) Spec. MC 300, MC 303; or MC 304 of steel or stainless steel construction (§§ 78.321, 78.324 or 78.325 of this chapter). Tank motor vehicles.

[15 F.R. 8302, Dec. 2, 1950, as amended by Order 18, 20 F. R. 950, Feb. 15, 1955; Order 19, 20 F. R. 4414, June 23, 1955; Order 27, 21 F. R. 7600, Oct 4, 1956; Order 31, 22 F.R. 4790, July 9, 1957; Order 33, 22 F.R. 11031, Dec. 31, 1957] § 73.136 Methyl dichlorosilane and trichlorosilane.

(a) Methyl dichlorosilane and trichlorosilane must be packed in specification containers as follows:

(1) Spec. 15A or 16B (§§ 78.168 or 78.186 of this chapter). Wooden boxes

with glass inside containers not over 1 quart capacity each securely closed and cushioned with incombustible absorbent material.

(2) Spec. 17H or 37A (§ 78.118 or § 78.131 of this chapter). Metal drums (single-trip) with glass inside containers not over 1 quart capacity each securely closed and cushioned with incombustible absorbent material.

(3) Spec. 5A, 5B, or 5C (§ 78.81, § 78.82, or § 78.83 of this chapter). Metal drums not over 55 gallons capacity each. Spec. 5B drums must have no opening exceeding 2.3 inches in diameter. These containers not authorized for shipment by rail express.

(4) Spec. 5F (§ 78.85 of this chapter). Metal drums not over 11 gallons capacity. This container not authorized for shipment by rail express.

(5) Specification cylinders as prescribed for any compressed gas, except acetylene.

(6) Spec. 103, 103-W, or 111A100-W-1 (§§ 78.265, 78.280, or 78.303 of this chapter). Tank cars, without bottom discharge outlet.

(7) Spec. 105A100, 105A100-W, 105A200-W, 105A300-W, or 111A100-W4 (§§ 78.270, 78.285, 78.286, 78.307, 78.306 of this chapter). Tank cars.

(8) Spec. MC 330 (§ 78.336 of this chapter). Tank motor vehicle.

[15 F.R. 8302, Dec. 2, 1950, as amended by Order 19, 20 F. R. 4414, June 23, 1955; Order 27, 21 F.R. 7600, Oct. 4, 1956; Order 31, 22 F.R. 4790, July 9, 1957; Order 39, 24 F.R. 5639, July 14, 1959; Order 54, 27 F.R. 3427, Apr. 11, 1962]

(a) Lithium aluminum hydride, ethereal, must be packed in specification containers as follows:

(1) Spec. 15A (§ 78.168 of this chapter). Wooden boxes with inside glass or earthenware containers not over 1 quart each enclosed in air-tight metal cans and cushioned with sufficient incombustible cushioning material to completely absorb contents in event of breakage.

(2) Spec. 6A, 6B, 6C, or 17H (singletrip) (§§ 78.97, 78.98, 78.99, or 78.118 of this chapter). Metal barrels or drums with not more than one inside glass container not exceeding 2 gallons capacity. The inside container must be completely cushioned in sufficient incombustible cushioning material to completely absorb the contents in event of breakage.

(a) Pentaborane must be packed in specification cylinders as prescribed for any compressed gas, except acetylene. Cylinders must be protected with valve protection cap or must be packed in strong wooden boxes and blocked therein so as to protect the valves from injury under conditions normally incident to transportation. Cylinders not exceeding 2 inches in diameter nor 6 inches in length, excluding the length of the valve, may also be packed in strong solid fiberboard boxes, having no outside dimension less than 4 inches, completely filled with layers of strong corrugated fiberboard, the center of which shall be cut out to fit the cylinder valve, and otherwise so designed that neither the cylinder nor the valve will be in contact with any wall of the box under conditions normally incident to transportation.

(b) Pentaborane must not be offered for transportation by rail express. [15 F.R. 8302, Dec. 2, 1950, as amended by Order 12, 18 F. R. 6777, Oct. 27, 1953]

§ 73.139 Ethylene imine, inhibited, and propylene imine, inhibited.

(a) Ethylene imine and propylene imine must be inhibited and must be packed in specification containers as follows:

(1) Spec. 15A or 15B (§ 78.168 or § 78.169 of this chapter). Wooden boxes, with inside containers which must be securely sealed glass ampules or glass bottles, contents not over 16 fluid ounces or 1 pound each, in tightly closed metal cans. If more than one ampule or bottle is packed in a metal can, ampules or bottles must be separated by fiberboard partitions. Ampules or bottles must be cushioned in vermiculite or equally efficient incombustible cushioning material in quantity sufficient to completely absorb contents in event of breakage. Not more than 5 pints of liquid may be packed in any outside wooden box.

(2) Spec. 15A, 15B, or 15C (§ 78.168, 78.169, or 78.170 of this chapter). Wooden boxes with not more than four inside metal drums, spec. 37B (§ 78.132 of this chapter), not over 1-gallon capacity each, or not more than one spec.

37B metal drum of 5-gallons capacity, in one outside box. Inside drums must be surrounded on all sides with incombustible absorbent cushioning material.

(3) Spec. 6A, 6B, 6C, or 6J (§ 78.97, 78.98, 78.99, or 78.100 of this chapter). Metal barrels or drums, with one inside spec. 17E (§ 78.116 of this chapter) metal drum not over 30-gallons capacity. Inside drum must be completely surrounded with incombustible cushioning material.

[Order 2, 16 F. R. 9374, Sept. 15, 1951, as amended by Order 20, 20 F. R. 8101, Oct. 28, 1955; Order 48, 26 F.R. 4995, June 6, 1961] § 73.140 Zirconium, metallic, solutions, or mixtures thereof, liquid.

(a) Zirconium, metallic, solutions, or mixtures thereof, liquid, must be packed in specification containers as follows:

(1) Spec. 15A, 15B, or 15C (§§ 78.168, 78.169, or 78.170 of this chapter). Wooden boxes with inside metal containers. Each inside container shall not contain more than 20 individual glass or porcelain jars, not exceeding 2-ounce capacity each, securely closed and completely cushioned in incombustible cushioning material in sufficient quantity to completely absorb the contents.

[Order 2, 16 F. R. 9374, Sept. 15, 1951, as amended by Order 8, 17 F. R. 9836, Nov. 1, 1952]

§ 73.141 Amyl mercaptan, butyl mercaptan, ethyl mercaptan, isopropyl mercaptan, propyl mercaptan, and aliphatic mercaptan mixtures.

(a) Amyl mercaptan, butyl mercaptan, ethyl mercaptan, isopropyl mercaptan, propyl mercaptan, and aliphatic mercaptan mixtures must be packed in specification containers as follows:

(1) Spec. 15A, 15B, 15C, 16A, or 19A (§§ 78.168, 78.169, 78.170, 78.185, or 78.190 of this chapter). Wooden boxes with securely closed inside metal containers not over 5 gallons capacity each; or in tightly closed glass bottles not exceeding 1 quart capacity each, securely cushioned in sufficient quantity of absorbent material to completely absorb the contents in event of leakage.

(2) Spec. 12B (§ 78.205 of this chapter). Fiberboard boxes with securely closed inside metal containers not over 1 gallon capacity each; or in tightly closed glass bottles not exceeding 1 quart capacity each, securely cushioned in sufficient quantity of absorbent material to

completely absorb the contents in event of leakage.

(3) Spec. 5, 5A, 5B, or 5C (§§ 78.80, 78.81, 78.82, or 78.83 of this chapter). Metal barrels or drums, with not more than one opening not exceeding 2.3 inches in diameter and not more than one vent opening not exceeding 1 inch in diameter. Gaskets are required and must be not less than 332-inch thick and of resilient material such as polyethylene, neoprene, or equally efficient material.

(4) Spec. 17C (§ 78.115 of this chapter). Metal drums (single-trip), with not more than one opening not exceeding 2.3 inches in diameter and not more than one vent opening not exceeding 1 inch in diameter. Gaskets are required and must be not less than 332-inch thick and of resilient material such as polyethylene, neoprene, or equally efficient material.

(5) Spec. 17E (§ 78.116 of this chapter). Metal drums (single-trip), not over 5 gallons capacity, without opening except bung hole not exceeding 2.3 inches in diameter. Gaskets are required and must be not less than 332-inch thick and of resilient material such as polyethylene, neoprene, or equally efficient material. (See also paragraph (a) (6) of this section.)

(6) Spec. 17E (8 78.116 of this chapter). Metal drums (single-trip), not over 55 gallons capacity, with not more than one opening not exceeding 2.3 inches in diameter and not more than one vent opening not exceeding 1 inch in diameter. Gaskets are required and must be not less than 32-inch thick and of resilient material such as polyethylene, neoprene, or equally efficient material. Authorized only for mercaptans having flash point above 20° F.

(7) Spec. 103-W, 105A100, 105A100-W, 105A200-W, 105A300-W, 105A400-W, 105A500-W, 105A600-W, or 111A100-W-1 (§ 78.280, 78.270, 78.285, 78.307, 78.286, 78.287, 78.288, 78.289, or 78.303 of this chapter). Tank cars. Specs. 103-W and 111A100-W-1 tank cars equipped with bottom outlets must have bottom outlets effectively sealed. Bottom washout permitted.

(8) Spec. MC 330 (§ 78.336 of this chapter), tank motor vehicles.

(9) Specification cylinders as prescribed for any compressed gas, except acetylene.

(b) Warning or odorizing devices containing not more than one ounce of a