G - Physics – 01 – N
Patent
G - Physics
01
N
150/21, 150/6
G01N 31/22 (2006.01)
Patent
CA 1271399
ABSTRACT OF THE DISCLOSURE Monitoring exposure to ethylene oxide using a dosimeter or monitoring device avoids using devices that collect a sample for future testing or devices that must be sent away for lab analysis. The device comprises a reactive coating including a layer of activated alumina particles coated with p-nitrobenzyl pyridine and ammonium chloride, and is adapted to instantly produce a colour intensity change directly related to the dosage of the reactive coating to ethylene oxide upon the addition of a developer.
506118
Fetherstonhaugh & Co.
Graphic Controls Canada Limited
Meathrel William G.
LandOfFree
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