Cal. Code Regs. Tit. 8, § 5451 - Flammable and Combustible Liquids-Storage and Handling
(a) The storage of flammable liquids or
liquids with a flashpoint greater than 199.4°F (93°C) (formerly
designated Class IIIB Combustible liquids) in connection with spraying
operations shall conform to the requirements of Article 141, where
applicable.
(b) Bulk storage of
flammable liquids or liquids with a flashpoint greater than 199.4°F
(93°C) (formerly designated Class IIIB Combustible liquids) shall be in a
separate, properly constructed building detached from other important buildings
or cut off from them by construction having at least one-hour fire resistance
rating.
NOTE: Lesser quantities of flammable or combustible liquids may be stored for use within a building under conditions meeting the other provisions of this section.
(c) The quantity of flammable liquids or
liquids with a flashpoint greater than 199.4°F (93°C) (formerly
designated Class IIIB Combustible liquids) kept in the vicinity of spraying
operations shall be the minimum required for operations and shall not exceed a
supply for 1 day or one shift.
(d)
Original closed containers, approved portable tanks, approved safety cans, or a
properly arranged system of piping shall be used for transporting flammable
liquids or liquids with a flashpoint greater than 199.4°F (93°C)
(formerly designated Class IIIB Combustible liquids). Open or glass containers
shall not be used for transportation or storage.
(e) The withdrawal of flammable liquids or
liquids with a flashpoint greater than 199.4 °F (93 °C) (formerly
designated Class IIIB Combustible liquids) from containers and the filling of
containers, including portable mixing tanks, shall be done only in a suitable
mixing room or in a spraying area when the ventilating system is in operation.
Precautions shall be taken to protect against liquid spillage and sources of
ignition.
(f) Except as provided in
(h), the withdrawal of flammable liquids and liquids with a flashpoint greater
than 199.4 °F (93 °C) (formerly designated Class IIIB Combustible
liquids) from containers having a capacity of greater than 60 gallons shall be
by approved pumps.
(g) Containers
supplying spray nozzles shall be of closed type or provided with metal covers
kept closed. Containers not resting on floors shall be on substantial supports
or suspended by wire cables. Containers supplying spray nozzles by gravity flow
shall not exceed 10 gallons capacity.
(h) Original shipping containers shall not be
subjected to air pressure for supplying spray nozzles. Pressure vessels
supplying spray nozzles shall be of limited capacity, not exceeding that
necessary for one day's operation; shall be designed and approved for such use;
shall be provided with a visible pressure gauge; and shall be provided with a
relief valve; all in conformance with the Unfired Pressure Vessel Safety
Orders.
(i) Containers under
pressure supplying spray nozzles, air storage tanks and coolers shall conform
to the standards of the Unfired Pressure Vessel Safety Orders for construction,
tests and maintenance.
(j) All
containers or piping to which is attached a hose or flexible connection shall
be provided with a shutoff valve at the connection. Such valves shall be kept
shut when spraying operations are not being conducted.
EXCEPTION: When a circulating system is used and it is provided with an automatically operated anti-runaway control.
(k) When a pump is used to deliver products,
automatic means shall be provided to prevent pressure in excess of the design
working pressure of accessories, piping and hose.
(l) All pressure hose and couplings shall be
inspected at regular intervals appropriate to the service. With the hose
extended, the hose and couplings shall be tested using the "in service maximum
operating pressures." Any hose showing material deteriorations, signs of
leakage or weakness in its carcass or at the couplings shall be withdrawn from
service.
(m) Unless flammable and
combustible liquid piping, hose and equipment have been designed to meet the
requirements of high pressure processes (those employing pressures in excess of
100 psig) such equipment shall not be used for this purpose.
(n) If flammable liquids or liquids with a
flashpoint greater than 199.4°F (93°C) (formerly designated Class IIIB
Combustible liquids) are supplied to spray nozzles by positive displacement
pumps, the pump discharge line shall be provided with an approved relief valve
discharging to a safe detached location, or a device provided to stop the prime
mover if the discharge pressure exceeds the safe operating pressure of the
system.
(o) Piping systems
conveying flammable liquids or liquids with a flashpoint greater than
199.4°F (93°C) (formerly designated Class IIIB Combustible liquids)
shall be of steel or other material having comparable properties of resistance
to heat and physical damage; they shall be so installed that a rupture of the
system for any reason is unlikely. Piping systems shall be properly bonded and
grounded.
(p) Whenever flammable
liquids or liquids with a flashpoint greater than 199.4°F (93°C)
(formerly designated Class IIIB Combustible liquids) are transferred from one
container to another, both containers shall be effectively bonded and grounded
to dissipate static electricity.
(q) If a spray liquid heater is used, it
shall be low-pressure, steam or hot water type, or electric. If electric, it
shall be approved and listed for the specific location in which it is used.
(See Section
5449.) Heaters shall not be located
in spray booths nor other locations subject to the accumulation of deposits or
combustible residue. Agitators, if used, shall be driven by compressed air,
water, or low-pressure steam, or electric. If powered by an electric motor, the
motor shall conform to the requirements of Section
5449.
Notes
2. Amendment of subsections (b), (c), (e) and (j) filed 12-5-86; effective thirtieth day thereafter (Register 86, No. 51).
3. Amendment of section heading and section filed 5-5-2014; operative 5-6-2014 pursuant to Government Code section 11343.4(b)(3) (Register 2014, No. 19).
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
2. Amendment of subsections (b), (c), (e) and (j) filed 12-5-86; effective thirtieth day thereafter (Register 86, No. 51).
3. Amendment of section heading and section filed 5-5-2014; operative
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