Multilayer chemical analysis member having an outer waterproof l

Details Multilayer chemical analysis member having an outer waterproof l Multilayer chemical analysis member having an outer waterproof l

1985-04-02

1986-12-23

Marantz, Sidney

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Calorimeter

435805, 436810, G01N 3352

Patent

active

046311742

ABSTRACT:
Chemical analysis sheets comprising a reagent layer, a porous spreading layer and a cover layer provided with a small opening are disclosed. The cover layer prevents rapid evaporation of moisture to ensure a complete reaction between the chemical reagent and the ingredient tested for.

REFERENCES:
patent: 3554871 (1971-01-01), Lariccia
patent: 4042335 (1977-08-01), Clement

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