Gravimetric dust sampling for control purposes and occupational dust sampling.

Abstract

Prior to the introduction of gravimetric dust sampling, konimeters had been used for dust sampling, which was largely for control purposes. Whether or not absolute results were achievable was not an issue since relative results were used to evaluate workplace conditions and the effectiveness of dust control measures, establish trends in workplace dust levels and to assist with the design of ventilation systems. Some attempts were made to establish occupational dust exposures levels but the instruments used and the units of measurement were not deemed to be suitable.