Mich. Admin. Code R. 325.52005 - Supply ventilation systems
Rule 5.
(1) An
employer shall provide a supply ventilation system to ensure a flow of air into
the working environment to equally replace the volume of air
exhausted.
(2) An employer shall
provide a mechanical air supply system if its absence will result in building
negative pressures sufficient to cause back-drafting of vents from fuel-fired
equipment or ineffective control.
(3) Mechanical air supply volumes shall be
heated to maintain a minimum air temperature of 65 degrees Fahrenheit measured
at the point of air discharge to the space. Exceptions to this requirement are
refrigerated storage rooms, special process rooms, and similar locations where
low air temperatures are essential to the preservation of the product or
service, or, if in the opinion of the director, a lower air temperature will
not be harmful to the health of the persons affected.
(4) Make-up air for spray-finishing
operations shall be as prescribed in General Industry Safety Standard Part 76
"Spray Finishing Using Flammable and Combustible Materials," as referenced in
R
325.52002.
(5) Make-up air for open surface tanks shall
be as prescribed in Occupational Health Standard Part 526 "Dipping and Coating
Operations," as referenced in
R
325.52002.
Notes
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