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Respirator Fit Testing Respirator fit testing consists of several exercises designed to stress the respirator/face seal during which the test subject wears the respirator to be tested, and the ratio of the challenge agent concentration inside the mask to the ambient concentration is measured. This Ratio is the Fit Factor. In the CNC method ambient[…]

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Chemical Hazard of the Month n-Hexane C6H14 Hexanes are significant constituents of gasoline. They are all colorless liquids, odorless when pure, with boiling points between 50 and 70°C (122 and 158°F). They are widely used as cheap, relatively safe, largely unreactive, and easily evaporated non-polar solvents. In industry, hexanes are used in the formulation of[…]

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