Keith R Hardwick

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The extent to which very short peak widths, peak frequency, sampling time and post-sampling/pre-capping time impact upon occupational exposure measurements of toluene has been investigated using diffusive tubes. Additionally, the effect of the width of the peak on the estimation of peak maximum concentration and time-weighted average (TWA) concentration(More)
Many portable single-gas monitors are used for the detection of low concentrations of hydrogen sulfide (H(2)S) and sulfur dioxide (SO(2)) in the workplace. With the recent lowering of the H(2)S and SO(2) ACGIH® threshold limit value (TLV®) the ability of these devices to selectively respond to these new lower levels is not well documented in petroleum(More)
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