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A Method for Sampling and Analyzing Trona Dust.
NTIS: PB 199 039 :4 pages
A method for determining airborne trona dust concentrations using a midget impinger was developed. During sampling, the trona dust, composed of sodium carbonate and bicarbonate, dissolves in the collecting medium (water). Resulting solutions are then titrated using 0.1 N hydrochloric acid solution. The mass concentration of the trona sample is determined from a calibration curve relating the volume of acid required for neutralizing a collected sample to the mass of the dust. Test results obtained using this method are equivalent to those obtained using a gravimetric sampling method.
IH; Report of Investigation;
NTIS Accession No.
NTIS: PB 199 039
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division