G - Physics – 01 – N
Patent
G - Physics
01
N
73/104, 73/97
G01N 1/22 (2006.01)
Patent
CA 1201907
TITLE Gaseous Contaminant Dosimeter With Blank Absorbant Medium ABSTRACT A personal dosimeter for collecting a quantity of a gaseous contaminant in proportion to its average ambient concentration over the time of collection is provided. The dosimeter consists of a closed recepta- cle containing a gas collecting absorbant medium, an added blister to contain a blank absorbant medium, a channel-containing diffusion device forming a part of the boundary of the receptacle and a porous, hydrophobic film in contact with the interior side of the barrier.
444416
Kring Elbert V.
Samuels Joseph K.
E.i. Du Pont de Nemours And Company
Mccallum Brooks & Co.
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