INDICATOR FLAT ELEMENT FOR CHEMICAL DETECTION OF SUBSTANCES (VERSIONS) Russian patent published in 2012 - IPC G01N31/02 

FIELD: measurement equipment.

SUBSTANCE: group of inventions relates to the field of chemical industry, namely, to indicator devices used during colorimetric analysis of air for availability of substances. An indicator flat element for chemical detection of substances comprises two parts detachably joined along the outer edge with bottom process holes, besides, the surface of the bottom of the first part is arranged in parallel to the surface of the bottom of the second part, forming a cavity, in which the primary chemical converter is arranged, besides, both parts are arranged as moulded and coaxially inserted into each other so that the inner surface of the bottom of the first moulded part is arranged in parallel to the external surface of the bottom of the second moulded part, at the same time the primary chemical converter is impregnated with an indicator solution. Also other versions are provided for making an indicator flat element.

EFFECT: improved manufacturability of making and assembling an element, increasing rigidity of element design, increased ergonomics of element using, higher reliability of substances detection.

21 cl, 17 ex, 4 dwg