Gaseous contaminant dosimeter with diffusion device therefor...

Details Gaseous contaminant dosimeter with diffusion device therefor... Gaseous contaminant dosimeter with diffusion device therefor...

G - Physics

01

N

73/104

G01N 1/22 (2006.01) G01N 33/00 (2006.01) G01N 1/40 (2006.01)

Patent

CA 1131934

ABSTRACT OF THE DISCLOSURE A personal dosimeter for measuring the average concentration of a gaseous contaminant over a given period of time is provided. The dosimeter comprises a sealed pouch having a reaction chamber, which contains a gas-collecting medium, and at least one compartment. Each compartment can be separately sealed and can contain a different reagent, the seals being individually breakable such that the reagents can be separately released into the reaction chamber. Into the pouch is sealed a gas diffusion device which consist of a formation of parallel, potted, hollow fibers or filaments, The diffusion device is oriented such that one end of the fibers is open to the atmosphere and the other end communicates with the interior of the reaction chamber.

315020

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