Colorimetric gas dosimeter

Details Colorimetric gas dosimeter Colorimetric gas dosimeter

G - Physics

01

N

150/21

G01N 21/78 (2006.01) G01N 31/22 (2006.01) G01N 33/52 (2006.01)

Patent

CA 1282305

COLORIMETRIC GAS DOSIMETER ABSTRACT OF THE DISCLOSURE A colorimetric gas dosimeter, which contains a granular indicator substance in a closed, transparent, hollow unit that can be opened on one side, is proved in such a way that the diffusion cross section for the hazardous substance molecules is independent of the degree of discoloration of the indicator substance and the detection sensitivity is thereby increased. This is achieved by sub-dividing the hollow unit into several chambers extending along its longitudinal axis, at least one of which is filled with the granular indicator, and is located adjacent to an indicator free chamber and is separated from this by a separating wall permeable to gas.

519380

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