FLAMMABLE AND COMBUSTIBLE LIQUIDS

Industrial Plants - Incidental Flammable or Combustible Liquid Storage or Use

Incidental flammable and combustible liquids shall be stored in covered containers when not in use. When they are used or handled, leakage or spills shall be disposed of promptly and safely, except when the liquid is in a closed container.

Flammable or combustible liquids shall be drawn from or transferred into vessels, containers, or portable tanks within a building only in the following manner:

Through a closed piping system

From safety cans

By means of a device drawing through the top

From containers or portable tanks by gravity through an approved self-closing valve.

Transfer operations must be provided with adequate ventilation. Sources of ignition are not permitted in areas where flammable vapors may travel. Transferring liquids by means of air pressure in a container or portable tank is prohibited. This may result in overpressure which could exceed what the container or tank could withstand. In addition, a flammable atmosphere could be created within the container or tank that is more sensitive to ignition due to the pressure.

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