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. Pressure may be as high as 2,280 lbs. Decomposes when passed through flames evolving hydrochloric and hydrofluoric acid fumes which are toxic. Pressure about 180 lbs. at 180° F. Decomposes when passed through flames evolving hydrochloric and hydrofluoric acid fumes which are toric. Pressure about 12.8 lbs. at 70° F. Pressure about 57 lbs. at 130° F. Accept in ICC cylinders only. Dichloromonofluoromethane_ Practically non-inflammable. Vapors very much heavier than air. Toric in concentrations above 2.5% upon exposure for more than 2 hours. Odorless. Decomposes when passed through flames evolving hydrochloric and hydrofluoric acid fumes which are toxic. Pressure about 8.5 lbs. at 70° F. Non-inflammable. Vapors very much heavier than air. 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 minus 1-3 lbs. gauge at 70° F. Pressure about 24 lbs. at 130° F. Vapors very much heavier than air. Decomposes. Pressure minus 8 lb. gage at 80° F. Pressure about 4 lb. at 130° F. Accept in ICC 5A Drums only. Green gas Permitted.... A metallic case containing The hazard of such cartridges is 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 (Smoke signals.) Water lights... Starting fluid, inflammable, in metal containers. Not permitted in gelatin capsules. stars of any color or descrip- Approved parachute flare dis- pelling lifeline, consisting of powder enclosed in a fabric A flare signal light used for sig- A cylinder constructed in zine chest.' No label required. Stowage: in place in the emer gency and motor lifeboats. Ad- No label required. Stowage: Vessel's portable maga- 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 No label required. Stowage: In place attached to ring 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. |