COMPARATIVE LABORATORY TRIALS OF TWO PORTABLE DIRECT-READING DUST MONITORS
- 1 November 1989
- journal article
- research article
- Published by Oxford University Press (OUP) in Annals of Occupational Hygiene
- Vol. 33 (4) , 591-606
- https://doi.org/10.1093/annhyg/33.4.591
Abstract
Two commercially available portable direct-reading respirable-dust monitors have been tested in a laboratory calm air chamber against a range of airborne dusts. Relative to concentrations measured with the MRE 113A horizontal elutriator the instruments showed a variable degree of agreement, and could be influenced both by particle size distribution and by particle composition. For a given composition and particle size distribution however it should be possible to calibrate the instruments to give consistent agreement with the horizontal elutriator. Continuous recording of data from the instruments was successfully achieved using a data logger. This proved extremely useful in the calculation of time-weighted dust concentrations, and in revealing dust concentration histories for each monitor.This publication has 2 references indexed in Scilit:
- Photometric Determination of Respirable Dust Concentration without Elutriation of coarse particlesParticle & Particle Systems Characterization, 1984
- Evaluation of the Direct Reading Instruments for the Measurement of AerosolsAihaj Journal, 1983