Fla. Admin. Code Ann. R. 69A-2.005 - Manufacture; Blasting Agents
(1)
Buildings or other facilities used for mixing blasting agents, including mobile
equipment, shall be located, with respect to inhabited buildings, passenger
railroads and public highways, in accordance with the American Table of
Distances as set forth in paragraph
69A-2.006(5)(a),
F.A.C.
(a) Minimum intra-plant separation
distances between mixing units and the oxidizer storage areas and blasting
agent storage areas shall be determined by competent persons, and these
distances shall be approved by the State Fire Marshal.
(b) Any oxidizer stored at a closer distance
to the blasting agent storage area than as provided in paragraph (1)(a), above,
shall be added to the quantity of blasting agents to calculate the total
quantity involved for application of the aforementioned
Table.
(2) Buildings used
for the mixing of blasting agents shall conform to the requirements of these
Rules and Regulations, unless otherwise specifically approved by the State Fire
Marshal.
(a) Buildings shall be of
noncombustible construction or sheet metal on wood studs.
(b) The layout of the mixing building shall
be such as to provide physical separation between the finished product storage,
and the mixing and packaging operations.
(c) Floors in storage areas and in the
processing plant shall be of concrete. Isolated fuel storage shall be provided
to avoid contact between molten oxidizer and fuel in case of fire.
(d) The building shall be well
ventilated.
(e) Heat shall be
provided exclusively from a unit outside the building.
(3) The design of the mixer shall minimize
the possibility of frictional heating, compaction, and especially, confinement.
Bearings and gears shall be protected against the accumulation of oxidizer
dust. All surfaces shall be accessible for cleaning. Mixing and packaging
equipment shall be constructed of materials compatible with the fuel-oxidizer
composition.
(4) The sensitivity of
the blasting agent shall be determined by means of a No. 8 test blasting cap at
regular intervals and after every change in ingredients, composition or
packaging, or as may be requested by the State Fire Marshal.
(a) No liquid fuel with flash point lower
than that of No. 2 Diesel fuel oil (125 degrees minimum or legal) shall be
used.
(b) If solid fuels are used,
they shall be chosen so as to minimize dust explosion hazards.
(c) Metal dusts (aluminum powder, etc.),
peroxides, chlorates or perchlorates shall not be used unless such operations
are conducted in a manner approved by the State Fire Marshal.
(d) Unusual compositions shall not be
attempted except under the supervision of competent personnel equipped to
determine the over-all hazards of the resulting
compositions.
(5) All
electrical switches, controls, motors, and lights, if located in the mixing
room, shall conform to the requirements of Class II, Division 2 of the National
Electrical Code, otherwise, they shall be located outside the mixing room. The
frame of the mixer and all other equipment that may be used shall be
electrically bonded and be provided with a continuous path to the
ground.
(6) Washdown facilities
shall be provided. Floors shall be constructed so as to eliminate open floor
drains and piping into which molten materials could flow and be confined in
case of fire. The floors and equipment of the mixing and packaging room shall
be washed down frequently to prevent accumulation of oxidizers or fuels and
other sensitizers. The entire mixing and packaging plant shall be washed down
periodically to prevent excessive accumulation of dust.
(7) Smoking or open flames shall not be
permitted in or within 50 feet of any building or facility used for the mixing
of blasting agents.
(8) Empty
oxidizer bags shall be disposed of daily in a safe manner.
(9) Not more than one day's production of
blasting agents shall be permitted in or near the mixing and packaging plant or
area. Larger quantities shall be stored in separate warehouses or magazines in
accordance with rule 69A-2.006,
F.A.C.
Notes
Rulemaking Authority 552.13 FS. Law Implemented 552.13 FS.
New 6-25-66, Repromulgated 12-24-74, Formerly 4A-2.05, 4A-2.005.
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