A large workshop uses a 2:1 mixture by volume of liquid xylene and hexane to strip varnish

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A large workshop uses a 2:1 mixture by volume of liquid xylene and hexane to strip varnish from antique furniture. A total of 15 liters is used per 8-hour shift. The workshop is maintained at \(25^{\circ} \mathrm{C}\) and \(1 \mathrm{~atm}\) and has a ventilation system that provides \(1 \mathrm{~m}^{3} / \mathrm{s}\) of fresh air. Is the ventilation system adequate to maintain the concentrations below the TLV-TWAs?

Xylene: molecular weight: 106.16, specific gravity: 0.870, TLV-TWA: \(100 \mathrm{ppm}\)

Hexane: molecular weight: 86.18 , specific gravity: 0.657 , TLV-TWA: \(50 \mathrm{ppm}\)

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