Imágenes de páginas
PDF
EPUB
[blocks in formation]
[merged small][ocr errors]

Paint and varnish remov. | Liquid preparations with solvent

ing compounds (when properties to soften up paint or possessing a flashpoint varnish, thus permitting ready above 160° F.)

removal. Certification for use as an Article of Ships' Stores and Supplies on board passenger vessels

is required.
Liquefied or non-lique- Inflammable gas

fied petroleum gas (ex- Components include propane, pro-
cept that which is used pylene, butane, butylene, and ou-
as "fuel for heating, tadiene.
cooking, lighting''). Vapors from most petroleum gases

are heavier than air ana will form
an explosive mixture with air cnet
narying ranges.

[blocks in formation]

Refrigerants (a substance The refrigerants listed in Groups

used to produce refrig. "A" and "B" are approved for
eration by its expansion use in refrigerating equipment
or vaporization),

on board vessels.
The refrigerants listed in Group

A” except carbon dioxide are
approved for use in air condition.
ing systems designed and used

for human comfort.
GROUP "A"
Air...

None..

None.
Green gas.
Green gas.
None.

Water.
Carbon dioxide.
Dichlorodifluoromethane.
Dichloromonofluoro.

methane. Dichlorotetralluoro.

ethane. Trichloromonofluoro

methane. Trichlorotrifluoroethane..

The service system and refrig

erant permitted for various type vessels is as follows: General refrigeration service:

Direct system.

Indirect system.
Any of the approved refriger-
ants in Groups "A"and "B".

None.

None.

None.

GROUP "B" Ammonia.

Green gas...

Air conditioning service:

Direct system.

Unit system.
Any of the approved refriger.

ants in Group “A” except

carbon dioxide.
Unit refrigeration service: In-

direct system.
Any of the approved refriger.
ants in Groups "A" and

“B”.?
Direct and indirect systems.. Green gas.

Permitted.
Ammonia.
Weakly inflammable crploside with

about 16% to 25% in air.
Vapors lighter than air.
Poisonous, even in small quantities

less than 1%.
Irritating odor gives warning of

presence.
Pressure about 315 lbs. at 150° F.

Accept in ICC cylinders only.
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.

[merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small]

Unit system is one which has been assembled and tested prior to its installation and which is installed with refrig. erant 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.

[blocks in formation]

Ammonia..

[blocks in formation]

Carbon dioride.
Non-inflammable.
Vapors heavier than air.
Will cause suffocation is breathed in

excessive quanlitics. Odorless. Pressure may be as high as 2,280 108.

per square inch at 130° F. Accept in ICC cylinders only. Dichlorodifluoromethane.. Vapors very much heavier than air. Non-poisonous. Non-inflammable. Excessive quantities in an enclosed

space may cause suffocation. Odorless. Decomposes when passed through

flames evolving hydrochloric and hydrofluoric acid fumes which are

toric. Pressure about 180 lbs. at 180° F. Accept in ICC cylinders only. Dichlorotetrafluoroethane. Vapors very much heavier than air. Non-poisonous. Non-inflammable. Ercessive quantities in an enclosed

space may cause suffocation. Odorless. Decomposes when passed through

flames evolving hydrochloric and hydrofluoric acid fumes which are

toric. Pressure about 12.8 lbs. at 70° F. Pressure about 67 168. at 130° F. Accept in ICC cylinders only. DichloromonofluoromethanePractically non-inflammable. Vapors very much heavier than air. Toric in concentrations above 2.5% upon exposure for more than %

hours. Odorless. Decomposes when passed through

flames evolving hydrochloric and hydrofluoric acid fumes which are

Lozic. Pressure about 8.6 lbs. at 70° F. Pressure about 50 los. at 180° F. Accept in ICC cylinders only. Trichloromonofluoromethane. Non-inflammable. Vapors very much heavier than air. Ercessive guantities in an enclosed

space may cause suffocation. Odorless. Decomposer when passed through

flames evolving hydrochloric and hydrofluoric acid fumes which are

toric. Pressure minus 1-3 108. gauge at

70° F. Pressure about 24 lbs. at 130° F. Accept in ICC 5A Drums only. Trichlorotrifluoroethane. Non-inflammable. Vapors very much heavier than air. Excessive quantities in an enclosed

space may cause suffocation. Odorless. Decomposes. Pressure minus 8 16. gage at 80° F. Pressure about 4 lb. at 150° F. Accept in ICC 5A Drums only.

No label required. Permitted.--

No label required.. Permitted.

[blocks in formation]
[blocks in formation]
[blocks in formation]

Refrigerants, unclassified: For characteristics and hazards

Carbon dioxide, solid see "Carbon dioxide, solid (dry Ice).

(dry ice, carbonice)” in $ 146.27-100, Table K. When used as a refrigerant, to be limited to well-ventilated spaces on or above weather deck. Warning sign at en. trance to spaces in which stowed shall be “Warning

00, Solid (Dry Ice)." Ships' signal and emer

gency equipment. Cartridges for line throw- A metallic case containing ing appliances

primer and powder in one unit and discharged by per

cussion. The hazard of such cartridges is

nil.

Protect from fire. Distross signal rockets.. Rockets or shells throwing

stars of any color or descrip

tion. Parachute flare distress Approved parachute flare dissignal cartridges.

tress signals with a means of projecting them, both contained in s portable

watertight case. Powder charges for line Powder charges used in pro

throwing appliance pelling lifeline, consisting of (mounted-type gun). not more than 5 ounces of

powder enclosed in a fabric

bag. Sell-igniting pilot lights A flara signal light used for sig. (blue flares).

naling for 8 pilot. Signals, distress.

Distress signals furnished as (Combination flare and equipment in lifeboats, life smoke.)

rafts and in pilothouse or (Distress lights.

navigating bridge. (Red flares.) Smoke signals.)

No label required. Stowage l'essel's portable maga

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: Metal cans having

watertight top closing means. No label required. Stowage: Vessel's portable maga.

zine chest.' No label required. Stowage: In place within the life

boat or life raft or buoyant apperatus. Additional lights may be stowed in the pilot house or navi. gating 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 apparatus 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 engi. neer, with the knowledge and approval of the master.

[blocks in formation]

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 28" 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.

« AnteriorContinuar »