UpCodes logo
Jump To Full Code Chapter
The storage, use and handling of flammable and combustible liquids shall be in accordance with this section and Chapter 57.
2403.3.1 Use
Containers supplying spray nozzles shall be of a closed type or provided with metal covers that are kept closed. Containers not resting on floors shall be on noncombustible supports or suspended by wire cables. Containers supplying spray nozzles by gravity flow shall not exceed 10 gallons (37.9 L) in capacity.
2403.3.2 Valves
Containers and piping to which a hose or flexible connection is attached shall be provided with a shutoff valve at the connection. Such valves shall be kept shut when hoses are not in use.
2403.3.3 Pumped Liquid Supplies
Where flammable or combustible liquids are supplied to spray nozzles by positive displacement pumps, pump discharge lines shall be provided with an approved relief valve discharging to pump suction or a safe detached location.
2403.3.4 Liquid Transfer
Where a flammable mixture is transferred from one portable container to another, a bond shall be provided between the two containers. Not less than one container shall be grounded. Piping systems for Class I and II liquids shall be permanently grounded.
2403.3.5 Class I Liquids as Solvents
Class I liquids used as solvents shall be used in spray gun and equipment cleaning machines that have been listed and approved for such purpose or shall be used in spray booths or spray rooms in accordance with Sections 2403.3.5.1 and 2403.3.5.2.
2403.3.5.1 Listed Devices
Cleaning machines for spray guns and equipment shall not be located in areas open to the public and shall be separated from ignition sources in accordance with their listings or by a distance of 3 feet (914 mm), whichever is greater. The quantity of solvent used in a machine shall not exceed the design capacity of the machine.
2403.3.5.2 Within Spray Booths and Spray Rooms
Where solvents are used for cleaning spray nozzles and auxiliary equipment within spray booths and spray rooms, the ventilating equipment shall be operated during cleaning.
2403.3.6 Class II and III Liquids
Solvents used outside of spray booths, spray rooms or listed and approved spray gun and equipment cleaning machines shall be restricted to Class II and III liquids.

Related Code Sections

2403.3.5 Flammable Finishes, Class I Liquids as Solvents
Class I liquids used as solvents shall be used in spray gun and equipment cleaning machines that have been listed and approved for such purpose ...
2403.3.1 Flammable Finishes, Use
Containers supplying spray nozzles shall be of a closed type or provided with metal covers that are kept closed. Containers not resting on floors ...
2403.3.1 Flammable Finishes, Use
Containers supplying spray nozzles shall be of a closed type or provided with metal covers that are kept closed. Containers not resting on floors ...