Measuring and testing – Gas analysis – Gas chromatography
Patent
1979-03-27
1980-11-25
Goldberg, Gerald
Measuring and testing
Gas analysis
Gas chromatography
422 88, G01N 3106
Patent
active
042350972
ABSTRACT:
A personal dosimeter for measuring the time-average concentration of a gaseous contaminant in the atmosphere in a manner substantially independent of atmospheric motion relative to the dosimeter is provided. The dosimeter comprises a detector substance capable of chemically or physically combining with the gaseous contaminant disposed tightly between two substantially flat members, at least one of which has a plurality of through-and-through channels. The members have corresponding, meshing shapes such that the channels provide the only communication between the atmosphere and the detector substance, allowing the gaseous contaminant to diffuse through the channels.
REFERENCES:
patent: 3924219 (1975-12-01), Braun
patent: 3950980 (1976-04-01), Braun et al.
patent: 3985017 (1976-10-01), Goldsmith
patent: 4040805 (1977-08-01), Nelms et al.
patent: 4132616 (1979-01-01), Tantram et al.
Palmes, E. D., et al. Personal Sampler for Nitrogen Dioxide, in Am. Ind. Hyg. Assoc. J., vol. 37, pp. 570-577, Oct. 1976.
Kring Elbert V.
Lautenberger William J.
E. I. Du Pont de Nemours and Company
Goldberg Gerald
Roskos Joseph W.
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