Diesel is a liquid substance used to operate mechanical devices and vehicles. Storage of diesel, as with any form or combustible substance, must be observed and followed to ensure safety. The Occupational Safety and Health Administration, a federal agency that enforces and applies safety and health legislation, requires that diesel and other combustible liquids are labelled properly when stored.
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Obtain an installation permit from your local planning or building department, if you are planning to install an emergency or standby aboveground generator tank, piping or other equipment that will store combustible liquids such as diesel.
Apply warning and identification labels on all piping and storage to indicate hazards. Labels should clearly mark the storage container.
Obtain other permits such as air quality or use of nearby electric utility, if necessary.
Obtain labels for storage tanks containing diesel or other combustible liquids. Labels must be applied on container inlets and outlets as well as container valves, specifying danger levels. Labels must clearly outline any dangers associated with connection to vapour or liquid space or other substances or gases. Fill containers as required under the OSHA regulations. OSHA stipulates that movable fuel storage containers cannot exceed 1,200 gallons of water capacity and that they must be equipped with wheels so that they can easily be transported from one location to another.
Provide adequate ventilation to prevent fire hazard. Adequate ventilation means that the concentration of gas in the gas-air mixture does not exceed 25 per cent of the lower flammable limit. Inspect container valves, connectors, manifold valve assemblies and regulators. They must meet the Department of Transportation guidelines to be considered acceptable.
Ensure that containers with more than 2,000 gallons of water capacity have the correct design and correct installation of each regulator, container valve, excess flow valve, gauging device and relief device. Inspection is required to be performed by a nationally recognised laboratory.
Apply labels bearing a DOT-approved symbol to containers when they meet the above specifications.
Apply labels that mark the container as compliant with the rules required by the National Board of Boil and Pressure Vessel Inspectors. Label the container with a specification as to whether it is to be used aboveground or underground, or both.
Apply a label to the storage tank that lists the name and address of the supplier and the trade name of the container, along with the water capacity in pounds or gallons, as per the U.S. standard. The label should also include the pressure, measured in pound-force per square inch gauge and the wording "This container shall not contain a produce having a vapour pressure in excess of __ p.s.i.g at 37.8 degrees Celsius."
Indicate the maximum level of the container's capacity to be filled with liquid at temperatures between -6.67 degrees Celsius and 54.4 degrees Celsius. The marking should be indicated on the liquid level gauging device.
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