Impaction sampler for size grading air-borne bacteria-carrying particles
- 1 January 1959
- journal article
- research article
- Published by IOP Publishing in Journal of Scientific Instruments
- Vol. 36 (1) , 3-8
- https://doi.org/10.1088/0950-7671/36/1/303
Abstract
A sampler for air-borne bacteria is described which separates the sample into 4 fractions each collected on to the agar surface of a Petri dish. The sampling rate is approximately 20 ft3/min, the size limits to the fractions are, above 18u diameter between 10 and 18[mu], between 10 and 4[mu] and below 4[mu]. There is considerable overlap between the fractions but reasonable estimates of the median particle diameter and the dispersion of particle size within the sample can be made so long as these fall within the working limits of the instrument.This publication has 4 references indexed in Scilit:
- The Bacterial Flora of the Air of Occupied RoomsEpidemiology and Infection, 1956
- The Trajectories of Heavy, Solid Particles in a Two-Dimensional Jet of Ideal Fluid Impinging Normally upon a PlateProceedings of the Physical Society. Section B, 1951
- The Production of Sprays and Mists of Uniform Drop Size by Means of Spinning Disc Type SprayersProceedings of the Physical Society. Section B, 1949
- The Cascade Impactor: An Instrument for Sampling Coarse AerosolsJournal of Scientific Instruments, 1945