The results of a NIOSH study which examined the availability and use of workplace air monitoring instrumentation to assess the operation of engineering control and exhaust air systems were presented. The interaction of control monitoring systems with other elements of the workplace control system, including engineering control devices, work practices, and protective equipment, was described. Control monitoring systems were said to consist of a sample conditioning and transport component, an analyzer or detector, and a data processing and display component, and each was described. Types of analyses discussed included gas chromatography, infrared absorbance, colorimetry, luminescence, electrochemical devices, ultraviolet absorbance, semiconductors, mass spectrometry, and flame ionization. The selection of a control monitoring system was addressed, and detection limit, dynamic range, and workplace constraints were parameters which were found to be important. The evaluation of systems in six facilities was also discussed. The author concludes that although there are many instruments useful for control monitoring, the instrument must be viewed as part of a total system to insure suitability for the intended application.
Symposium on Control of Workplace Hazards in the Chemical Manufacturing Industry, March 11-12, 1981, Philadelphia, Pennsylvania, NIOSH, Cincinnati, Ohio