Colorimetric indicators

Details Colorimetric indicators Colorimetric indicators

1981-10-08

1983-12-20

Marcus, Michael S.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Calorimeter

422 87, 422 88, 422 66, 436122, 436131, 436132, 436162, G01N 3108, G01N 3122

Patent

active

044217196

ABSTRACT:
A colorimetric indicator in sheet form comprising an indicator substance, a high surface area carrier for said indicator substance, and a self-adhering clay mineral binder coated on a backing is disclosed. The colorimetric indicator is useful for personal monitors, as end of service life indicators for respirators, thin layer chromatography plates, and vapor transfer sheets.

REFERENCES:
patent: 3068073 (1962-11-01), Stanford
patent: 3350175 (1967-10-01), McConnaughey
patent: 3552929 (1968-01-01), Fields et al.
patent: 3672845 (1972-06-01), Verbeck
patent: 4326514 (1982-04-01), Eian

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