1 Refrigerating systems are divided into classes, descriptive of the method employed for extracting heat as follows: Direct system is one in which the evaporator is in direct contact with the material or space refrigerated or is located in air circulating passages communicating with such spaces.

Indirect system is one in which a liquid, such as brine or water cooled by the refrigerant, is circulated to the material or space refrigerated or is used to cool air so circulated.

Unit system is one which has been assembled and tested prior to its installation and which is installed with refrigerant containing parts completely assembled.

2 Reserve supply of refrigerant may be stowed in any cool, isolated location (excepting a cargo hold, or passenger or crew spaces) on board the vessel. Racks shall be provided and the containers secured therein. Valve protection cap shall be in place on cylinders.

A metallic case containing
primer and powder in one
unit and discharged by per-
cussion.

The hazard of such cartridges is
nil.

Protect from fire.

Distress signal rockets.. Rockets or shells throwing No label required. Stowage Vessel's portable maga

Parachute flare distress signal cartridges.

Powder charges for line throwing appliance (mounted-type gun).

Self-igniting pilot lights
(blue flares).
Signals, distress..
(Combination flare and
smoke.)
(Distress lights.
(Red flares.)

(Smoke signals.)

Water lights...
(Ring buoy flares.)
(Life raft flares.)

Starting fluid, inflammable, in metal containers. Not permitted in gelatin capsules.

stars of any color or descrip-
tion.

Approved parachute flare dis-
tress signals with a means
of projecting them, both
contained in a portable
watertight case.
Powder charges used in pro-

pelling lifeline, consisting of
not more than 5 ounces of

powder enclosed in a fabric
bag.

A flare signal light used for sig-
naling for a pilot.
Distress signals furnished as
equipment in lifeboats, life
rafts and in pilothouse or
navigating bridge.

A cylinder constructed in
accordance with the reg.
ulations of the Com-
mandant of the Coast
Guard, loaded with a com-
position of calcium carbide
and calcium phosphide de-
signed to produce a brilliant
light, without explosion,
when in contact with water.
Used for starting engines.......
Flashpoint usually below 0° F.
Must be packaged in metal
containers that will not rup-
ture when exposed to tem-
peratures of 200° F. or below.
Protect from excessive tem-
perature.

zine chest.'

No label required. Stowage: in place in the emer

gency and motor lifeboats. Ad-
ditional flares may be stowed in
a location discretionary with the
master.

No label required. Stowage: Vessel's portable maga-
zine chest.
Container:

No label required.
No label required.

Metal cans having watertight top closing means.

Stowage: Vessel's portable magazine chest.

Stowage: In place within the lifeboat or life raft or buoyant apparatus. Additional lights may be stowed in the pilot house or navigating bridge.

Container: The container shall be
constructed in accordance with
specification requirements of the
Commandant of the Coast
Guard.

No label required. Stowage: In place attached to ring
buoys, life rafts, and buoyant ap-
paratus as required by Comman-
dant of the Coast Guard. Spares
shall be stowed in vessel's port-
able magazine chest.
Containers: Cylinders built to
specifications of, and approved
by Commandant of the Coast
Guard.

No label required.. Stowage: In metal locker selected

and supervised by the chief engineer, with the knowledge and approval of the master.

1 Container: A watertight metal case constructed of copper of not less than No. 22 B. W. G. thickness, seams lock jointed and soldered. The cover or top may be of cast brass not less than 16" thickness, or of reinforced copper, and shall have a fitted gasket together with threaded means, clamps or dogs to provide a W. T. seal (Bayonet type closing means not permitted). The cover shall be easily removable without recourse to tools. The case shall have a capacity of not less than 6 rockets.