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[F] 502.7.7 Floor Resurfacing Operations
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To prevent the accumulation of flammable vapors during floor resurfacing operations, mechanical ventilation at a minimum rate of 1 cfm/ft2 [0.00508 m3/(s • m2)] of area being finished shall be provided. Such exhaust shall be by approved temporary or portable means. Vapors shall be exhausted to the outdoors.