G - Physics – 01 – N
Patent
G - Physics
01
N
116/66
G01N 33/00 (2006.01) G01N 1/22 (2006.01) G01N 1/40 (2006.01)
Patent
CA 1133326
ABSTRACT OF THE DISCLOSURE A personal Dosimeter for measuring the time- average concentration of a gaseous contaminant in the atomos- phere 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 atmos- phere and the detector substance, allowing the gaseous contaminant to diffuse through the channels.
348361
Kring Elbert V.
Lautenberger William J.
E. I. Du Pont de Nemours And Company
Mccallum Brooks & Co.
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