R 408.41851 Portable fire extinguishing equipment; selection and installation.

Rule 1851. (1) All portable fire extinguishers shall bear an approved label of a nationally recognized testing laboratory. A fire extinguisher or extinguishing device that contains an active agent or propellant that has thermal decomposition products that have a level of vapor toxicity equal to or greater than any of the following listed materials shall not be used, installed for use, or allowed to remain installed for use: (a) Carbon tetrachloride, CCL4. (b) Chlorobromomethane, CH2 BrCL. (c) Azeotropic chlormethane, CM7. (d) Dibromodifluoromethane, CBr2F2. (e) 1, 2-dibromo-2-chloro-1, 1, 2-trifluoroethane, Cbr-F2, CBrCLf. (f) 1, 2-dibromo-2, 2-difluoroethane, CH2BrCbrF2. (g) Methylbromide, CH3Br. (h) Ethylene dibromide, CH2BrCH2Br. (i) Hydrogen bromide, HBr. (j) Methylene bromide, CH2Br2. (k) Bromodifluoromethane, CHBrF2. (2) A fire extinguisher, rated not less than 2A, shall be provided for each 3,000 square feet of the protected building area, or major fraction thereof. Travel distance from any point of the protected area to the nearest fire extinguisher shall not exceed 100 feet. (3) One or more fire extinguishers, rated not less than 2A, shall be provided on each floor. In multistory buildings, at least 1 fire extinguisher shall be located adjacent to stairway. (4) Fire fighting equipment shall be located where it will be readily seen and accessible along normal paths of travel in the protected area. (5) One 55-gallon open drum of water and 2 fire pails may be substituted for a fire extinguisher that has a 2A rating. Extinguishers and water drums, subject to freezing, shall be protected from freezing. (6) A 1/2 inch or larger interior diameter garden hose that is not more than 100 feet in length and that is equipped with a nozzle may be substituted for a 2A fire extinguisher if it is capable of reaching all points in the area that would be covered by the replaced extinguisher and is capable of discharging not less than 5 gallons per minute with a horizontal hose stream of not less than 30 feet. The hose line shall be mounted on a rack or reel. Not more than 1/2 of the total number of required fire extinguishers may be replaced by the hose. (7) In addition to the requirements of this rule, fire extinguishers shall be supplied as follows: (a) Not less than 1 portable fire extinguisher that has a rating of not less than 20 BC units shall be located as follows: (i) Outside of, but not more than 10 feet from, a door opening to a room used for the storage of more than 60 gallons of flammable liquids. (ii) Not less than 25 feet, nor more than 75 feet, from an outside storage area. (iii) On each tank truck or other vehicle used to transport or dispense flammable liquids. (iv) A fire extinguisher, rated not less than 10B, shall be provided within 50 feet of wherever more than 5 gallons of flammable or combustible liquids or 5 pounds of flammable gas are being used on the jobsite. This requirement does not apply to the integral fuel tanks of motor vehicles. (b) Each service or fueling area shall have at least 1 portable fire extinguisher which has not less than a 20 BC unit rating and which is located within 75 feet of each pump, dispenser, underground fill opening, and lubricating or service area. (c) Storage locations for liquefied petroleum gas (L.P.G.) shall be provided with at least 1 approved portable fire extinguisher that has a rating of not less than 20 BC. (d) Each site of a hazardous process shall be provided with a portable fire extinguisher of an appropriate size and type. Other means for safety or control may be provided if approved or required by the process. (8) Table 1 may be used in selecting and providing an extinguisher. (9) Table 1 reads as follows: TABLE 1 HAZARD DESCRIPTI ON EXTINGUISHER TYPE AND CONTENTS Class "A" Fire Combustible Material Loaded stream, Multipurpose dry chemical, Pressure-operated water, Water pump tanks, Water mist, Halon 1211. Class "B" Fire Flammable Liquids, Gas, Or Grease Carbon dioxide, Dry chemical, Foam, Loaded stream, Multipurpose dry chemical, Halon 1211. Class "C" Fire Electrical Equipment Carbon dioxide with plastic horn only, Dry chemical, Multipurpose dry chemical, Water mist, Halon 1211. Class "D" Fire Combustible Metal Extinguishing agent listed for use on a specific combustible metal hazard.