Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Calorimeter
Patent
1988-10-21
1990-06-19
Richman, Barry S.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Calorimeter
422 87, 436165, G01N 3122
Patent
active
049352067
ABSTRACT:
A process for the measuring of flat discoloration zones of an indicator substrate, which is transported into a measuring position and treated with a gaseous test medium there, is improved with regard to the measuring dynamic and the construction of the apparatus by producing a flow of the test medium along the surface of the section of an indicator substrate held in a measuring position, by providing several optical control zones staggered in the longitudinal direction of the test flow and by connecting it with an electronic evaluation instrument for the production of the measurement in such a way that the actual measure value is formed from the measuring of the discoloration of the indicator substrate along the control zones.
REFERENCES:
patent: 3884641 (1975-05-01), Kraffczyk et al.
patent: 4023930 (1977-05-01), Blunck et al.
patent: 4806491 (1989-02-01), Heim
Dragerwerk AG
Johnston Jill
Richman Barry S.
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