Self-contained gaseous contaminant dosimeter

Details Self-contained gaseous contaminant dosimeter Self-contained gaseous contaminant dosimeter

G - Physics

01

N

73/104

G01N 1/22 (2006.01) G01N 31/22 (2006.01)

Patent

CA 1137333

ABSTRACT 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 con- tain a different reagent, the seals being in- dividually breakable such that the reagents can be separately released into the reaction chamber. Into the pouch is sealed a gas diffusion device that permits the contaminant to diffuse into the reaction chamber where it is collected in pro- portion to its ambient concentration.

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