Abstract
The 10 mm cyclone respirable mass sampler was evaluated to determine the flow rate which best matched the BMRC and the LASL-ACGIH criteria and to determine effects of pulsating flow, particle charge, mass loading and sampler orientation. Part I, this paper, describes the work with monodisperse aerosol The best match for BMRC was 1.4 Ipm; for LASL, 1.7 Ipm. The two separate criteria should be merged. The 10 mm cyclone is better for samp/ing logistics than the BMRC horizontal elutriator.