Задачи по БЖД 2-13

In the shop the volume V=700 m3 is painted parts, wherein the solvent used butyl alcohol. When working in 8 - hour working day, consume 1 kg of solvent. During operation evaporates 15% of the solvent. To determine the ventilation rate and the amount of air that must enter into the room that the concentration of butyl alcohol does not exceed the allowable.

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