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Class "C" Barges CA Hull constructed of steel or wood, completely decked over and stowing cargo "On deck

in open" only, Atted with cargo mast and boom, and machinery for cargo bandling, with or without house or houses on deck.

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CB Hull constructed of steel or wood, completely decked over, having cargo hatches in deck,

and stowing cargo "On deck in open" or "Under deck", fitted with cargo mast and boom and machinery for cargo handling, with or without house or houses on deck.

Class "D" Barges

DA Hull constructed of steel baving division bulkheads forming tight compartments (tanks)

integral with the hull of the barge, to be utilized for the transportation, in bulk, of dangerous substances in liquid form, other than inflammable and combustible liquids.

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DB Hull constructed of wood having division bulkheads and ceiling forming tight compart

ments Integral with the hull of the bargo, to be utilized for the transportation, in bulk, of dangerous substances other than liquids.

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EA Hull constructed of steel or wood, having cargo carrying compartments of hopper type

and Atted with bottom dump or side dump (known as dump scows, mud scows, garbage scrows, etc.).

EB Barge constructed of wood completely decked and having boxlike structure on dock not

roofed over.

(b) The term “ceiled” applied to a barge constructed of wood means the hold space is fitted with a tight plank floor and that tight planking or wooden cargo battens are carried up the sides of the hold to provide a smooth floor and reasonably smooth sides without unnecessary proJections. Floor or siding fitted “tight" shall have removable sections for purposes of clean-out and access for inspection of hull. When cargo battens are fitted at sides the floor shall be carried out to the skin of the barge and fitted reasonably tight around the frames.

(c) When applied to a barge constructed of steel, the term “ceiled” means the construction shall be such as to provide a reasonably flush floor or tank top and sides, free from unnecessary projections within the cargo space. Tight wooden flooring and ceiling or battens may be fitted in the cargo spaces of steel barges in lieu of steel platings. % 146.104 Carfloats and barges used

as carfloats. Explosives or other dangerous articles or substances laden in railway or highway vehicles in compliance with the provisions of the Interstate Commerce Commission regulations governing such transportation may be carried or conveyed on board carfloats and barges used as carfloats subject to the following conditions:

(a) Carfloats and barges used as carfloats shall not be utilized to transport, carry, convey or store vehicles laden with any explosive expressly prohibited by subsection 3 of R.S. 4472, as amended.

(b) Carfloats and barges used as carfloats shall not be utilized to transport, carry, convey or store vehicles laden with any permitted explosive or other dangerous article or substance unless in compliance with the provisions of the regulations in this part with respect to “Barges”.

(c) Dangerous cargo laden in vehicles being transported on carfloats and barges used as carfloats is not subject to any other provision of the regulations in this part unless the packages, or the substances if in bulk, are removed from the vehicle for any reason other than transfer of the article or substance from the vehicle to a vessel.

(d) Transfer of explosives from vehicles on board carfloats and barges used as carfloats to vessels shall be governed by the permit requirements of $$ 146.20 85, 146.20–87. (CGFR 57-33, 22 F.R. 8571, Oct. 29, 1957, as amended by CGFR 59-46, 24 F.R. 9391, Nov. 21, 1959) § 146.10–5 On deck protection.'

Wooden barrels, wooden or fiberboard boxes, fiber drums, plywood drums containing explosives, infiammable liquids, inflammable solids or oxidizing materials or poisons that are stowed “On deck in open” on barges shall be protected by tarpaulins. The following hazardous articles, burlap bags, camphene, calcium carbide, bleaching powder, cork, cotton, cotton and textile waste, excelsior, fibers, hay, naphthalene, oakum, wood shavings shall when stowed "On deck in open” on barges be protected by tarpaulins. § 146.10–6 Stowage of explosives.

(a) Barges having cargoes of permitted explosives and other dangerous articles are required to observe the provisions of the stowage and storage chart of explosives and other dangerous articles in $ 146.10–50.

(b) Explosives required by the regulations in this part to be stowed in magazines shall when on board barges as cargo be stowed either in a house or "Under deck” as permitted for the particular type of barge by the provisions of table shown in $ 146.10-50. (Order 74, 6 F.R. 280, Jan. 11, 1941, as amended, 9 F.R. 14343, Dec. 6, 1944)

8 146.10–50 Stowage of explosives or other There is indicated in this table the explosives or other dangerous articles or substances, separated according to barges. Unless otherwise stated in the table, a permitted stowage applies to substances when in containers only. substances whicb are loaded and carried without benefit of containers or wrappers, and received and delivered by

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Explosives...... See table in Yes..

Yes....
Yes..

On deck only.. $ 146.20. Inflammable liquids. Red...

Yes
Yes
Yes.

On deck only'. Inflammable solids Yellow.

Yes 14.
Yes 15
Yes.

No.... and oxidizing ma

terials.
Corrosive liquids.... White....

Yes, also bulk | Yes, also bulk | Yes, also bulk No except bulk
in tanks.1
in tanks.
in tanks.

in tanks. Inflammable com

Red gas.

Yes.
On deck only.-- Yes ..

On deck only. pressed gases. Non-inflammable

Green gas..

Yes.
Yes..
Yes.

On deck only..
compressed gases.
Poisono articles:
Class "A"

"Posson gas" or Class "B"

“Poison" or
Class "C"
"Tear gas."

Yes
Yes.

On deck only! Class "D"

"Radioactive

Materials."
Hazardous articles... No label required. Yes 14

Yes
Yes...

On deck only 11

Yes 1.

1 Outside containers vulnerable to damage by water shall not be given this stowage.

Outside containers vulnerable to damage by water shall be stowed under deck only.
• Outside containers vulnerable to damage by water shall be stowed under cover only.
* Substances affected by water shall not be given this stowage.
• Substances affected by water shall be stowed under deck only.

Substances affected by water shall be stowed under cover only. Stowage shall be "on deck in house" only. (Order 74, 6 F.R. 280, Jan. 11, 1941, as amend- (b) Explosive compositions that ignite ed, CGFR 62–11, 27 F.R. 5281, June 5, 1962)

spontaneously or undergo marked deSubpart 146.20—Detailed Regulations

composition when subjected for 48 conGoverning Explosives

secutive hours to a temperature of 75° C.

(167° F.). SOURCE: $ $ 146.20-1 to 146.20-300 con- (c) Explosives containing an amtained in CGFR 52-8, 17 F.R. 6464, July 17,

monium salt and a chlorate. 1952, except as otherwise noted.

(d) Liquid nitroglycerin, diethylene 8 146.20-1 An explosive.

glycol dinitrate, or other liquid explo

sives not authorized by the Commandant For the purpose of the regulations in

of the Coast Guard. this subchapter an explosive is defined as any chemical compound, mixture, or de

(e) Explosives condemned by the Invice, the primary or common purpose of

terstate Commerce Commission (except which is to function by explosion, i.e.,

properly packed samples for laboratory with substantially instantaneous release

examinations). Appeal may be made to of gas and heat, unless such compound,

the Interstate Commerce Commission mixture, or device is otherwise specifi

from such condemnations. cally classified in the regulations in this

(f) Leaking or damaged packages of part.

explosives. (CGFR 52–8, 17 F.R. 6464, July 17, 1952]

(g) Condemned or leaking dynamite

shall not be repacked and offered for $ 146.20–3 Prohibited or not permitted shipment unless written authority is explosives.

granted by the Interstate Commerce The offering of the following explosives Commission and the repacking is done by for transportation, carriage, conveyance, a competent person in the presence of an storage, stowage, or use on board vessels inspector designated by the Interstate is forbidden:

Commerce Commission. (a) Fulminates or other detonating (h) Firecrackers, flash crackers, sacompounds in bulk in dry condition. lutes, or similar commercial devices

dangerous articles or substances on board barges. their classification, that are permitted or restricted in their transportation and stowage on board the various class When such substances are permitted “in bulk" a notation to that effect appears in the table. ("In Bulk" means the vessel without mark or count.)

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No.....No.

Yes, also bulk Yes, also bulk No, except Yes...-- Yes... Yes...- No..
in tanks. in tanks.1 bulk in

tanks,
No..
No...
No...

Yes.... On deck No... No....

only.
Yes..
Yes.
No..
Yes.....

No.---- No..

No..... No.

Yes...-

No... No.

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8 Transportation of inflammable or combustible liquids, in bulk, is governed by rules and regulations for tank Vessels.

NOTE: Containers of dangerous articles vulnerable to damage by water or dangerous substances affected by water when loaded in weatherproof railroad vehicles in accordance with requirements of the Interstate Commerce Commission regulations are exempt from the provisions of stowage restrictions shown in this table and numbered (1) to (7), inclusive. which produce or are intended to produce of explosive composition in each torpedo an audible effect, the explosive content exceeding 4 grains. of which exceeds 12 grains each in (0) Toy torpedoes containing a cap weight, and pest control bombs, the ex- composed of a mixture of red phosphorus plosive content of which exceeds 18 and potassium chlorate exceeding an grains in weight; and any such devices, average of one-half (0.5) grain per cap. without respect to explosive content, (p) Fireworks containing copper sulwhich on functioning are liable to pro- fate and a chlorate. ject or disperse metal, glass or brittle (q) New explosives except samples for plastic fragments.

laboratory examination and military ex(i) Fireworks that combine an ex- plosives approved by the Chief of Ordplosive and a detonator or blasting cap. nance, Department of the Army; Chief,

(j) Fireworks containing an ammo- Bureau of Naval Weapons, Department nium salt and a chlorate.

of the Navy; or Commander, Air Force (k) Fireworks containing yellow or

Systems Command and Commander, Air white phosphorus.

Force Logistics Command, Department

of the Air Force. All other new ex(1) Fireworks or fireworks compositions that ignite spontaneously or un

plosives must be approved for transpordergo marked decomposition when sub

tation by the Interstate Commerce jected for 48 consecutive hours to &

Commission.

(r) Loaded firearms. temperature of 75° C. (167° F.). (m) Fireworks condemned by the In

(CGFR 52–8, 17 F.R. 6464, July 17, 1952, as

amended by CGFR 54–16, 19 F.R. 4929, Aug. terstate Commerce Commission except

6, 1954; CGFR 56-29, 21 F.R. 7055, Sept. 20, properly repacked samples for laboratory 1956; CGFR 58–48, 23 F.R. 9635, Dec. 12, 1958; examinations.

CGFR 62–11, 27 F.R. 5281, June 5, 1962; (n) Toy torpedoes, the maximum out

CGFR 62-48, 27 F.R. 12133, Dec. 7, 1962] side dimension of which exceeds 78 $ 146.20–5 Acceptable explosives. inch, or toy torpedoes containing a mix- (a) Acceptable explosives are divided ture of potassium chlorate, black anti- by the Interstate Commerce Commission mony and sulfur with an average weight regulations into three classes according

to degree of hazard in transportation, as follows:

Class A explosives, detonating or otherwise of maximum hazard.

Class B explosives, inflammable hazard.
Class C explosives, minimum bazard.

(b) Acceptable explosives are defined by the Interstate Commerce Commission regulations as set forth in this subpart, and such definitions are binding upon all shippers making shipments of any explosives by common carrier vessels engaged in interstate or foreign commerce by water. Such definitions are accepted and adopted and form part of the regulations in this subchapter applying to all shippers making shipments of explosives by any vessel and shall apply to the owners, charterers, agents, masters or persons in charge of vessels and to other persons transporting, carrying, conveying, storing, stowing or using explosives on board any vessel. f 146.20–7 Class A explosives.

Class A explosives are defined as:

(a) Type 1. Solid explosives which can be caused to deflagrate by contact with sparks or flame such as produced by safety fuse or an electric squib, but cannot be detonated by means of a No. 8 test blasting cap.” Examples: Black powder and low explosives.

(b) Type 2. Solid explosives which contain a liquid explosive ingredient, and which, when unconfined,' can be detonated by means of a No. 8 test blasting cap;' or which can be exploded in at least 50 percent of the trials in the Bureau of

Explosives' Impact Apparatus“ under & drop of 4 inches or more, but cannot be exploded in more than 50 percent of the trials under a drop of less than 4 inches. Examples: Commercial dynamite containing a liquid explosive ingredient.

(c) Type 3. Solid explosives which contain no liquid explosive ingredient and which can be detonated, when unconfined, by means of a No. 8 test blasting cap; ' or which can be exploded in at least 50 percent of the trials in the Bureau of Explosives' Impact Apparatus under a drop of 4 inches or more, but cannot be exploded in more than 50 percent of the trials under a drop of less than 4 inches. Examples: Commercial dynamite containing no liquid explosive ingredient, trinitrotoluene, amatol, tetryl, picric acid, urea nitrate, pentolite and commercial boosters.

(d) Type 4. Solid explosives which can be caused to detonate, when unconfined, by contact with sparks or filame such as produced by safety fuse or an electric squib; or which can be exploded in the Bureau of Explosives' Impact Apparatus ' in more than 50 percent of the trials under a drop of less than 4 inches. Examples: Initiating and priming explosives, lead azide, fulminate of mercury, etc.

(e) Type 5. Desensitized liquid explosives are explosives which may be detonated separately, or when absorbed in sterile absorbent cotton, by a No. 8 test blasting cap; ' but which cannot be exploded in the Bureau of Explosives' Impact Apparatus' by a drop of less than 10 inches. The desensitizer must not be significantly more volatile than nitroglycerin and the desensitized explosive must not freeze at temperatures above minus 10° F. Example: Desensitized nitroglycerin.

(f) Type 6. Liquid explosives that can be exploded in the Bureau of Explosives'

1 The detonation test is performed by placing the sample in an open-end fiber tube which is set on the end of a lead block approximately 1/2 inches in diameter and inches high which, in turn, is placed on a solid base. A steel plate may be placed between the fiber tube and the lead block.

? A No. 8 test blasting cap is one containing 2 grams of a mixture of 80 percent mercury fulminate and 20 percent potassium chlorate, or a cap of equivalent strength.

g "Unconfined" as used in this section does not exclude the use of a paper or soft aber tube wrapping to facilitate tests.

* The Bureau of Explosives impact apparatus 18 a testing device designed so that a guided 8-pound weight may be dropped from predetermined heights so as to impact specific quantities of liquid or solid materials under fixed conditions. Detalled prints may be obtained from the Bureau of Explosives, 63 Vesey Street, New York 7, N. Y.

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