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Subpart 146.21-Detailed Regulations § 146.21–15 Stowage on board vessels.

Governing Inflammable Liquids (a) All inflammable liquids permitted $ 146.21-1 Definition of inflammable

for transportation on board vessels shall,

when taken on board a vessel, be stowed liquids.

in accordance with the provisions apply(a) An infiammable (flammable) liq- ing to the particular character of vessel uid is defined by the ICC regulations as as shown in the tables, $ 146.21-100, and any liquid which gives off inflammable with the detailed regulations of stowage (flammable) vapors (as determined by shown in this subpart. flash point from Tagliabue's open-cup (b) ICC specification portable tanks, tester, as used for test of burning oils) at not over 20,000 pounds gross weight and or below a temperature of 80° F.

ICC specification tank cars and motor (b) Such definitions are binding upon vehicle tank trucks approved for the all shippers making shipments of in

commodity carried and permitted transflammable (flammable) liquids by com- portation on board vessels by $ 146.21mon carrier vessels engaged in interstate 100 shall be stowed in the specific locaor foreign commerce by water. These tion provided by § 146.21–100. The condefinitions are accepted and adopted and version table 46 CFR 146.07-40(c) does form part of the regulations in this sub- not apply. chapter applying to all shippers making

(CGFR 51-19, 19 F.R. 7219, July 24, 1951, as shipments of inflammable (flammable) amended, CGFR 63–19, 28 F.R. 5380, May 30, liquids by an vessel, and shall apply to 1963] the owners, charterers, agents, master

$146.21–20 "On deck” stowage. or other persons, transporting, carrying, conveying, storing, stowing or using in- (a) Inflammable liquids, stowage of flammable (flammable) liquids on board which is permitted “On deck" by the any vessel subject to R.S. 4472, as amend- provisions of the table $ 146.21–100 shall ed (46 U.S.C. 170), and the regulations be properly secured, when so stowed, in in this subchapter.

a manner satisfactory to the master or (CGFR 57-33, 22 F.R. 8581, Oct. 29, 1957)

other person in charge of the vessel con

sistent with the following conditions: $146.21-10 Export shipments of in- (1) Such inflammable liquid shall be flammable liquids.

so stowed as to provide safe access to the Certain inflammable Liquids are per- crew's quarters and to all parts of the mitted by these regulations to be ex- deck required to be used in the navigaported under shipping names differing tion and necessary working of the vessel. from shipping names as required in do- (2) Such inflammable liquids shall not mestic transportation. Such substances be stowed within a distance in a horitogether with these "synonym” shipping zontal plane of 25 feet of an operating names are indicated in the tables in

or embarkation point of a lifeboat when $ 146.21-100 and the "synonym" shipping such point is at the same deck level as names that are permitted are shown

that upon which an inflammable liquid thereon. Substances shipped under these

cargo is stowed, except on a vessel which "synonym” shipping names may be accepted on board vessels that are per

by reason of its breadth, it is impossible mitted to transport such substances in

to provide such horizontal distance; deck export; provided the shipment otherwise

stowage is permitted when the cargo is conforms to the provisions of the regu

confined to only one side of the center lations in this part. Stowage on board

line of the vessel. vessels shall be in accordance with the (3) Fire plugs, sounding pipes and stowages indicated in the tables for the access to same shall be maintained free particular character of vessel involved. and clear of inflammable liquid cargo (CGFR 51-19, 16 F.R. 7219, July 24, 1951) stowed “On deck."

(b) On passenger-carrying vessels, when limited stowage of inflammable liquid is permitted "On deck", such liquids shall be stowed well away from any deck or spaces provided for use of passengers.

(c) The fire hose at each fire hydrant on the vessel in the vicinity of inflammable liquids stowed "On deck" shall be fitted with an approved combination spray nozzle. During loading and unloading operations, the pressure shall be maintained in the fire mains. Two hand portable fire extinguishers of the dry chemical type of at least 15 pounds capacity or two portable 242-gallon foam type extinguishers are also required and shall be located so as to be accessible in the event of fire occurring in the vicinity of such inflammable liquid cargo. Any foam used shall be of a type suitable for use with the lading.

(d) When portable tanks, tank cars and motor vehicle tank trucks containing inflammable liquids are stowed as permitted by the regulations in this subpart, the area in way of each 21,000 U.S. gallons or less of inflammable Uquids shall also be protected by one or more B-V semiportable foam (40-gal. capacity) or dry chemical (100 lbs. minimum capacity) fire extinguishers, or alternatively, by a fire hose fitted with an approved portable mechanical foam nozzle with pick-up tube and two 5-gallon cans of foam liquid concentrate. When carrying commodities incompatible with the conventional foam system, the foam shall be of a type suitable for use with the lading. The fire extinguishers shall be located so as to be accessible in the event of fire occurring in the vicinity of these portable tanks. (CGFR 51-19, 19 F.R. 7219, July 24, 1951, as amended, CGFR 63–19, 28 F.R. 5380, May 30, 1963) & 146.21–25 "Under deck” stowage.

(a) Stowage of inflammable liquids "Under deck” shall be either in ventilated holds or in holds that are gastight.

(b) Inflammable liquids that are permitted by the regulations in this subpart to be stowed in a cargo hold or a compartment on board a passenger vessel shall not be so stowed unless the compartment or hold authorized for such stowage is fitted with either an overhead water sprinkler system, inert gas or steam smothering system.

(c) Inflammable liquids permitted on passenger vessels may be stowed in a hold or compartment the overdeck of which forms a boundary of a passenger space, provided such overdeck is of an AI type of construction or in lieu thereof is fitted on its underside in way of the passenger area with three inches of incombustible insulation.

(d) Compartments or holds in which inflammable liquid cargo is to be stowed and which are fitted with electrical circuits having outlets within the compartment or hold shall have such circuits disconnected from all sources of power supply unless the fixtures within the hold are of explosion proof type, and such circuits shall not be again connected for power until the compartment or hold has been freed of any accumulation of inflammable vapors.

(e) After the stowage of inflammable liquid cargo has commenced in a compartment or hold that is not fitted with explosion proof type of electrical outlets no portable means of artificial lighting shall be used within such a compartment or hold unless such portable equipment is of the explosion proof type. Electrical connections for permitted portable lighting shall be made to outlets located outside of the compartment or hold and above the weather deck. Hand flashlights shall be of the non-sparking type.

(f) Inflammable Liquids may be stowed in a compartment having a boundary bulkhead or deck which also forms a boundary to a boiler room, engine room or a coal bunker or galley provided no containers of such inflammable liquid are stowed within twenty (20) feet of such bulkhead or deck. When the amount of such inflammable liquid to be stowed in the hold exceeds the space available the twenty (20) feet separation need not be complied with provided one or more of the following protections are provided:

(1) The bulkhead or deck is insulated with at least three (3) inches of insulation throughout its entire area subject to heat.

(2) A temporary wooden bulkhead of at least two inches thickness is constructed in the hold at least three inches off the engine room and six inches off the boiler room bulkhead and covering the entire area of the bulkhead that is subject to heat. The space between the permanent bulkhead and the temporary wooden bulkhead shall be filled full with bulk asbestos or mineral wool.

(3) A temporary wooden bulkhead constructed of one inch T and G sheathing located three feet off the boiler room or engine room bulkhead and filled with sand to a height of six feet above the tank top.

(g) Cargo compartments located “Tween decks” and having a boundary bulkhead which also forms a boundary to a boiler room, engine room, coal bunker, galley or a boiler room uptake casing may be utilized for the stowage of inflammable liquids under the conditions as outlined in paragraph (f) of this section except that the provision in paragraph (f) (3) of this section requiring filling with sand to a height of 6 feet shall be modified to provide for only 3 feet of sand.

(h) Inflammable liquids in drums or in export wooden cases having inside containers in excess

of

one quart capacity shall not be stowed as beam fillers. Wooden barrels, wooden boxes, and fiberboard boxes with inside containers of inflammable liquids of less than one quart capacity shall not be stowed as beam fillers unless it is possible to stow and observe “This Side Up" markings. (CGFR 59-14, 24 F.R. 5271, June 30, 1959)

$ 146.21-30 Stowage of inflammable

liquids with explosives and other dan

gerous articles. The stowage of inflammable liquids with explosives and other dangerous articles shall conform to the following conditions:

(a) Inflammable liquids in any quantity shall not be stowed on deck im. mediately over a hold or compartment containing Class A or Class B explosives.

(b) Inflammable liquids shall not be stowed below deck or in excess of one ton on deck on a vessel carrying Class A or Class B explosives unless the engine and boiler room spaces or one complete hatch intervenes.

(c) Infiammable liquids shall not be stowed in the same hold or compartment with Class C explosives.

(d) Inflammable liquids shall not be stowed in the same hold or compartment with inflammable solids.

(e) Inflammable liquids shall not be stowed in the same hold or compartment with oxidizing materials.

(f) Inflammable liquids shall not be stowed in the same hold or compartment with corrosive liquids.

(g) Inflammable liquids in excess of one ton shall not be stowed in a hold beneath infiammable compressed gases stowed "On deck”.

(h) Inflammable liquids shall not be stowed in the same hold or compartment over cylinders of non-inflammable compressed gases.

(i) Inflammable liquids shall not be stowed in the same hold or compartment with poisonous articles.

(j) Inflammable liquids shall not be stowed in the same hold or compartment with cotton, nor in the hold above or below one containing cotton. (CGFR 59-14, 24 F.R. 5271, June 30, 1959; CGFR 60–33, 25 FR. 5237, June 11, 1960) $ 146.21–35 Boundary bulkheads.

Holds, with bulkheads in which cargo openings to adjacent holds are fitted, shall not be used for the stowage of inflammable liquids unless such openings are provided with means to securely close Inflammable Vapors Keep Lights and Fire Away

electrical apparatus are provided and such control means are located outside the boundaries of said space. Electrical power lines passing through a hold that is to be used for the stowage of inflammable liquids shall have such run of cable protected by metal covering to prevent damage and possible short circuit. Such metal protection shall be substantial enough to prevent crushing by reason of cargo which might be stowed against same. (CGFR 63–19, 28 F.R. 5380, May 30, 1963) $146.21-55 Smoking prohibited, warn

ing signs. (a) Smoking prohibited in the vicinity of inflammable liquid cargo stowed “On deck" and in holds in which such cargo is stowed or in the vicinity of ventilators from such holds.

(b) Signs carrying the legend

No Smoking

oft and make the hold gas tight or unless
the adjacent hold is also used for the
stowage of inflammable or combustible
liquid cargo.
(CGFR 51-19, 16 F.R. 7220, July 24, 1951)
§ 146.21-40 Hatch closing means.

All unit compartments or holds used for the stowage of inflammable liquids shall be provided with full and efficient hatch covers. Tarpaulins if fitted or required to be fitted shall be protected by dunnaging before overstowing with cargo. Such tarpaulins shall be in one piece and free of rents, tears, or holes. (CGFR 51-19, 16 F.R. 7220, July 24, 1951) & 146.21-45 Ventilation.

All cargo holds in which inflammable liquids are to be stowed and which are provided with means for ventilating shall, before any inflammable Liquid cargo in a quantity in excess of 1 ton be stowed in such hold, have fire screens fitted at the weather end of the vent ducts. This fire screen shall consist of two layers of fine brass wire screen of at least a 20 x 20 mesh spaced not less than 12 inch or more than 142 inches apart. This screen may be removable, and if so fitted, means for effectively securing the same in place when in service shall be provided. Mushroom type heads shall have similiar fire screens so fitted as to completely and eficiently cover the open area. For holds that are gas tight and fitted with vent trunks such vent trunks may be eficiently blanked off at both termini in lieu of fitting fiame screens. Stowage of inflammable liquids in a quantity in excess of 1 ton shall not be permitted in holds or compartments that are fitted with gooseneck type of vent trunk heads. (CGFR 51-19, 16 F.R. 7220, July 24, 1951) $ 146.21-50 Electrical equipment in

holds. Inflammable liquids shall not be stowed in holds or compartments in which electrical apparatus of any type except explosion proof are fitted unless positive means for disconnecting all such

shall be posted at each avenue of approach to inflammable liquid cargo when stowed "On deck" and in the vicinity of cargo hold ventilators when infiammable cargo is stowed in the hold. Such sign shall be painted on a white background using a bright red color for lettering. The letters shall not be less than 3 inches high. (CGFR 51-19, 16 F.R. 7220, July 24, 1951) § 146.21-57 Use of power-operated in

dustrial trucks in spaces containing

flammable liquids. (a) In a space in which packaged flammable liquids are stowed, only approved power-operated industrial trucks with a recognized testing laboratory designation of EX, EE, GS, LPS, and DS (see $ 146.09–15) may be used for handling cargo including the handling of such packaged flammable liquids. (CGFR 61-44, 26 F.R. 11019, Nov. 23, 1961)

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(a) Inflammable liquids, except those enumerated in paragraph (c) of this section, in inside metal containers not over 1 quart capacity each, or in inside containers not over 1 pint or 16 ounces by weight each, packed in strong outside containers, except as otherwise provided, are exempt from specification packaging, marking other than name of contents, and labeling requirements.

(b) Such limited quantity shipments may be accepted on board vessels subject to the regulations in this part, provided the bill of lading or other shipping paper correctly describes the article and the required marking on the outside container is in accordance with the true name in the commodity list. Stowage shall be "On deck under cover” or “Tween decks” in a compartment not subject to artiAicial heat.

(c) The following articles in any quantity are not exempt from any of the regulations in this subpart:

(1) Acrolein.
(2) Acrolein, inhibited.
(8) Aliphatic mercaptan mixtures.

(4) Aluminum triethyl and mixtures or solutions thereof.

(5) Aluminum trimethyl and mixtures or solutions thereof.

(6) Amyl mercaptan.
(7) Butyl mercaptan.
(8) Carbon bisulfide (disulfide).
(9) Dimethyldichlorosilane.
(10) Ethyl chloride.
(11) Ethyl mercaptan.
(12) Ethyl trichlorobllane.
(13) Ethyldichlorsilane.
(14) Ethylene imine, inhibited.
(16) Ethylene oxide.

(16) Inflammable (flammable) liquids which are also corrosive liquids or oxidizing materials under the regulations in this part

(17) Isopropyl mercaptan.

(18) Lithium aluminum hydrido (ethereal).

(19) Methyl dichlorosllano.
(20) Methyl vinyl ketone, inhibited.

(21) Methylchloromethyl ether, anhydrous.

(22) Methylhydrazine.
(23) Methyltrichlorosilane.
(24) Nickel carbonyl.
(25) Pentaborane.

(26) Peroxides, organic, liquids or solu. tions, N.O.S.

(27) Propyl mercaptan.

(28) Pyroforic fuel and mixtures or solutions thereof.

(28a) Pyroforic solutions.

(29) Spirits of nitroglycerin in excess of one percent by weight.

(30) Trichlorosilane. (31) Trimethylchlorosilane. (32) Dimethylhydrazine, unsymmetrical. (83) Vinyl trichlorosilane. (34) Zinc ethyl. (35) Zirconium, metallic, solutions

Or mixtures thereof.

(36) Methyl magnesium bromide in ethyl ether in concentrations not over 40 percent.

(37) Triisobutyl aluminum and mixtures and solutions thereof.

(38) Ethyl aluminum sesquichloride and mixtures and solutions thereof.

(39) Diethyl aluminum chloride and mixtures and solutions thereof.

(40) Ethyl aluminum dichloride and mixtures and solutions thereof.

(41) Methyl aluminum sesquichloride and mixtures and solutions thereof.

(42) Methyl aluminum sesquibromide and mixtures or solutions thereof. (CGFR 61-19, 16 F.R. 7219, July 24, 1951 as amended by CGFR 57-93, 22 FR. 8581, Oct. 29, 1957; CGFR 57-49, 22 F.R. 10062, Dec. 14, 1957; CGFR 58–9, 23 F.R. 4846, June 28, 1958, CGFR 58-48, 28 F.R. 9636, Dec. 12, 1958; CGFR 59-14, 24 F.R. 5271, June 30, 1959; CGFR 62–11, 27 F.R. 5282, June 6, 1962) $ 146.21-70 Limited quantity ship

ments of paint products. (a) 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, when packed in inside glass or

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