Occupational Safety and Health Admin., Labor
(10) Original closed containers, approved portable tanks, approved safety
cans or a piping system shall be used to
bring flammable or combustible liquids
into spraying areas.
(11) If flammable or combustible liquids are supplied to spray nozzles by
positive displacement pumps, the pump
discharge line shall have a relief valve
discharging either to a pump section or
detached location, or the line shall be
equipped with a device to stop the
prime mover when discharge pressure
exceeds the system’s safe operating
pressure.
(12) Wiring, motors and equipment in
a spray booth shall be of approved explosion-proof type for Class I, Group D
locations and conform to subpart S of
Part 1910 of this chapter for Class I, Division 1, Hazardous Locations. Wiring,
motors and equipment within 20 feet
(6.1m) of any interior spraying area and
not separated by vapor-tight partitions
shall not produce sparks during operation and shall conform to the requirements of subpart S of Part 1910 of this
chapter for Class I, Division 2, Hazardous Locations.
(13) Outside electrical lights within
10 feet (3.05m) of spraying areas and
not separated from the areas by partitions shall be enclosed and protected
from damage.
(e) Additional requirements for spray
booths. (1) Spray booths shall be substantially constructed of noncombustible material and have smooth interior surfaces. Spray booth floors shall
be covered with noncombustible material. As an aid to cleaning, paper may
be used to cover the floor during painting operations if it is removed after the
painting is completed.
(2) Spray booths shall be separated
from other operations by at least 3 feet
(0.91m) or by fire-retardant partitions
or walls.
(3) A space of at least 3 feet (0.91m)
on all sides of the spray booth shall be
maintained free of storage or combustible materials.
(4) Metal parts of spray booths, exhaust ducts, piping and airless highpressure spray guns and conductive objects being sprayed shall be grounded.
(5) Electric motors driving exhaust
fans shall not be located inside booths
or ducts.
§ 1917.156
(6) Belts shall not enter ducts or
booths unless the belts are completely
enclosed.
(7) Exhaust ducts shall be made of
steel, shall have sufficient access doors
to permit cleaning, and shall have a
minimum clearance of 18 inches (0.46m)
from combustible materials. Any installed dampers shall be fully opened
when the ventilating system is operating.
(8) Spray booths shall not be alternately used to spray different types of
coating materials if the combination of
the materials may spontaneously ignite unless deposits of the first material are removed from the booth and
from exhaust ducts before spraying of
the second material begins.
[48 FR 30909, July 5, 1983, as amended at 65
FR 40942, June 30, 2000]
§ 1917.154
Compressed air.
Employees shall be protected by chip
guarding
and
personal
protective
equipment complying with the provisions of subpart E of this part during
cleaning with compressed air. Compressed air used for cleaning shall not
exceed a pressure of 30 psi. Compressed
air shall not be used to clean employees.
§ 1917.155
Air receivers.
(a) Application. This section applies
to compressed air receivers and equipment used for operations such as cleaning, drilling, hoisting and chipping. It
does not apply to equipment used to
convey materials or in such transportation applications as railways, vehicles or cranes.
(b) Gauges and valves. (1) Air receivers
shall be equipped with indicating pressure gauges and spring-loaded safety
valves. Safety valves shall prevent receiver pressure from exceeding 110 percent of the maximum allowable working pressure.
(2) No other valves shall be placed between air receivers and their safety
valves.
§ 1917.156
Fuel handling and storage.
(a) Liquid fuel. (1) Only designated
persons shall conduct fueling operations.
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§ 1917.156
29 CFR Ch. XVII (7–1–03 Edition)
(2) In case of spillage, filler caps shall
be replaced and spillage disposed of before engines are started.
(3) Engines shall be stopped and operators shall not be on the equipment
during refueling operations.
(4) Smoking and open flames shall be
prohibited in areas used for fueling,
fuel storage or enclosed storage of
equipment containing fuel.
(5) Equipment shall be refueled only
at designated locations.
(6) Liquid fuels not handled by pump
shall be handled and transported only
in portable containers or equivalent
means designed for that purpose. Portable containers shall be metal, have
tight closures with screw or spring covers and shall be equipped with spouts
or other means to allow pouring without spilling. Leaking containers shall
not be used.
(7) Flammable liquids may be dispensed in the open from a tank or from
other vehicles equipped for delivering
fuel to another vehicle only if:
(i) Dispensing hoses do not exceed 50
feet (15.24 m) in length; and
(ii) Any powered dispensing nozzles
used are of the automatic-closing type.
(8) Liquid fuel dispensing devices
shall be provided with an easily accessible and clearly identified shut-off device, such as a switch or circuit breaker, to shut off the power in an emergency.
(9) Liquid fuel dispensing devices,
such as pumps, shall be mounted either
on a concrete island or be otherwise
protected against collision damage.
(b) Liquefied gas fuels—(1) Fueling locations. (i) Liquefied gas powered equipment shall be fueled only at designated
locations.
(ii) Equipment with permanently
mounted fuel containers shall be
charged outdoors.
(iii) Equipment shall not be fueled or
stored near underground entrances, elevator shafts or other places where gas
or fumes might accumulate.
(2) Fuel containers. (i) When removable fuel containers are used, the escape of fuel when containers are exchanged shall be minimized by:
(A) Automatic quick-closing couplings (closing in both directions when
uncoupled) in fuel lines; or
(B) Closing fuel container valves and
allowing engines to run until residual
fuel is exhausted.
(ii) Pressure-relief valve openings
shall be in continuous contact with the
vapor space (top) of the cylinder.
(iii) Fuel containers shall be secured
to prevent their being jarred loose,
slipping or rotating.
(iv) Containers shall be located to
prevent damage to the container. If located within a compartment, that compartment shall be vented. Containers
near the engine or exhaust system
shall be shielded against direct heat radiation.
(v) Container installation shall provide the container with at least the vehicle’s road clearance under maximum
spring deflection, which shall be to the
bottom of the container or to the lowest fitting on the container or housing,
whichever is lower.
(vi) Valves and connections shall be
protected from contact damage. Permanent protection shall be provided for
fittings on removable containers.
(vii) Defective containers shall be removed from service.
(3) Fueling operations. (i) To the extent applicable, fueling operations for
liquefied gas fuels shall also comply
with paragraph (a) of this section.
(ii) Using matches or flames to check
for leaks is prohibited.
(iii) Containers shall be examined before recharging and again before reuse
for the following:
(A) Dents, scrapes and gouges of pressure vessels;
(B) Damage to valves and liquid level
gauges;
(C) Debris in relief valves;
(D) Leakage at valves or connections;
and
(E) Deterioration or loss of flexible
seals in filling or servicing connections.
(4) Fuel storage. (i) Stored fuel containers shall be located to minimize exposure to excessive temperatures and
physical damage.
(ii) Containers shall not be stored
near exits, stairways or areas normally
used or intended for egress.
(iii) Outlet valves of containers in
storage or transport shall be closed.
Relief valves shall connect with vapor
spaces.
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Occupational Safety and Health Admin., Labor
(5) Vehicle storage and servicing. (i)
Liquefied gas fueled vehicles may be
stored or serviced inside garages or
shops only if there are no fuel system
leaks.
(ii) Liquefied gas fueled vehicles
under repair shall have container shutoff valves closed unless engine operation is necessary for repairs.
(iii) Liquefied gas fueled vehicles
shall not be parked near open flames,
sources of ignition or unventilated
open pits.
[48 FR 30909, July 5, 1983, as amended at 62
FR 40202, July 25, 1997; 65 FR 40943, June 30,
2000]
§ 1917.157 Battery charging and changing.
(a) Only designated persons shall
change or charge batteries.
(b) Battery charging and changing
shall be performed only in areas designated by the employer.
(c) Smoking and other ignition
sources are prohibited in charging
areas.
(d) Filler caps shall be in place when
batteries are being moved.
(e) Parking brakes shall be applied
before
batteries
are
charged
or
changed.
(f) When a jumper battery is connected to a battery in a vehicle, the
ground lead shall connect to ground
away from the vehicle’s battery. Ignition, lights and accessories on the vehicle shall be turned off before connections are made.
(g) Batteries shall be free of corrosion buildup and cap vent holes shall be
open.
Pt. 1917, App. I
(h) Adequate ventilation shall be provided during charging.
(i) Facilities for flushing the eyes,
body and work area with water shall be
provided wherever electrolyte is handled, except that this requirement does
not apply when employees are only
checking battery electrolyte levels or
adding water.
(j) Carboy tilters or siphons shall be
used to handle electrolyte in large containers.
(k) Battery handling equipment
which could contact battery terminals
or cell connectors shall be insulated or
otherwise protected.
(l) Metallic objects shall not be
placed on uncovered batteries.
(m)
When
batteries
are
being
charged, the vent caps shall be in
place.
(n) Chargers shall be turned off when
leads are being connected or disconnected.
(o) Installed batteries shall be secured to avoid physical or electrical
contact with compartment walls or
components.
[48 FR 30909, July 5, 1983, as amended at 62
FR 40202, July 25, 1997]
§ 1917.158
Prohibited operations.
(a) Spray painting and abrasive blasting operations shall not be conducted
in the vicinity of cargo handling operations.
(b) Welding and burning operations
shall not be conducted in the vicinity
of cargo handling operations unless
such hot work is part of the cargo operation.
APPENDIX I TO PART 1917—SPECIAL CARGO GEAR AND CONTAINER SPREADER
TEST REQUIREMENTS (MANDATORY) [SEE § 1917.50(C)(5)]
Type gear ......
Test requirement
Tested by
Proof test
A. All Special Cargo Handling Gear Purchased or Manufactured on or After January 21, 1998
1. Safe Working Load—
greater than
5 short tons
(10,000 lbs./
4.5 metric
tons).
Prior to initial use .................
OSHA accredited agency
only.
Prior to reuse after structural
damage repair
Up to 20 short
tons.
125% SWL
From 20 to 50
short tons
5 short tons in
excess of
SWL
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