Mich. Admin. Code R. 29.5659 - General definitions
Rule 659. Sections 3.3.21.1, 3.3.64, 3.3.65, and 3.3.66 are added to the FL/CL code:
3.3.21 "Flash
point" means the minimum temperature of a liquid at which sufficient vapor is
given off to form an ignitable mixture with the air, near the surface of the
liquid or within the vessel used, as determined by the appropriate test
procedure and apparatus specified in section 4.4.
3.3.21.1 "Flow-through process tank" means a
tank that forms an integral part of a production process through which there is
a steady, variable, recurring, or intermittent flow of materials during the
operation of the process and the tank is utilized to carry out or control the
heating, cooling, mixing, blending, separating, metering, or chemical action of
materials. The processing is done on a regular basis and it is the primary
function of the tank. A flow-through process tank does not include a tank that
is used for the storage of materials before its introduction into the
production process or for the storage of finished products or byproducts from
the production process or a tank that is only used to recirculate
materials.
3.3.64
"Aboveground storage tank system (AST)" means a tank, or combination of tanks,
including the pipes that are connected to the tank(s) or ancillary equipment
containment systems, if any, that has less than 10% of its combined volume
beneath the surface of the ground. The tank or tanks may presently be in use,
or may have been used in the past, to contain an accumulation of
liquids.
3.3.65 "Tank System" means
an AST system or an UST system.
3.3.66 "Underground storage tank system
(UST)" means a tank, or combination of tanks, including the underground pipes
that are connected to the tank or tanks or underground ancillary equipment
containment systems, if any, that has 10% or more of its combined volume
beneath the surface of the ground. The tank or tanks may presently be in use,
or may have been used in the past, to contain an accumulation of
liquids.
Notes
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