30 CFR § 75.1100-1
Type and quality of firefighting equipment.
Firefighting equipment required under this subpart shall meet the following
(a) Waterlines: Waterlines shall be capable of delivering 50 gallons
of water a minute at a nozzle pressure of 50 pounds per square inch.
(b) Portable water cars: A portable water car shall be of at least
1,000 gallons capacity (500 gallons capacity for anthracite mines) and shall
have at least 300 feet of fire hose with nozzles. A portable water car shall
be capable of providing a flow through the hose of 50 gallons of water per
minute at a nozzle pressure of 50 pounds per square inch.
(c) A portable chemical car shall carry enough chemicals to provide a
fire extinguishing capacity equivalent to that of a portable water car.
(d) Portable foam-generating machines or devices: A portable
foam-generating machine or device shall have facilities and equipment for
supplying the machine with 30 gallons of water per minute at 30 pounds per
square inch for a period of 35 minutes.
(e) Portable fire extinguisher: A portable fire extinguisher shall be
either (1) a multipurpose dry chemical type containing a nominal weight of 5
pounds of dry powder and enough expellant to apply the powder or (2) a
foam-producing type containing at least 2 1/2 gallons of foam-producing
liquids and enough expellant to supply the foam. Only fire extinguishers
approved by the Underwriters Laboratories, Inc., or Factory Mutual Research
Corp., carrying appropriate labels as to type and purpose, shall be used.
After March 30, 1971, all new portable fire extinguishers acquired for use
in a coal mine shall have a 2A 10 BC or higher rating.
(f)(1) Except as provided in paragraph (f)(2) of this section, the fire hose
shall be lined with a material having flame resistant qualities meeting
requirements for hose in Bureau of Mines' Schedule 2G. The cover shall be
polyester, or other material with flame-spread qualities and mildew
resistance equal or superior to polyester. The bursting pressure shall be at
least 4 times the water pressure at the valve to the hose inlet with the
valve closed; the maximum water pressure in the hose nozzle shall not exceed
(2) Fire hose installed for use in underground coal mines
prior to December 30, 1970, shall be mildew-proof and have a bursting
pressure at least 4 times the water pressure at the valve to the hose inlet
with the valve closed, and the maximum water pressure in the hose nozzle with
water flowing shall not exceed 100 p.s.i.g.