METHOD OF AND APPARATUS FOR QUANTITATIVE CONTINUOUS INDICATION OF CONTAMINANTS IN AIR

Title:

METHOD OF AND APPARATUS FOR QUANTITATIVE CONTINUOUS INDICATION OF CONTAMINANTS IN AIR

Document Type and Number:

Japanese Patent JPS5319890

Kind Code:

A

Abstract:

The specification describes a method for the continuous quantitative indication of pollutants in air, in which a reagent solution taken from a storage container is first passed through the reference cell of a photometer, is then mixed in a reaction chamber with the gas to be examined and, dependent on the concentration of the pollutant, is decolorized or colored, is then passed through the measuring cell of the photometer, and is finally collected in a collection container, an indication corresponding to the concentration of pollutant being derived from the output of the photometer, and in which the reagent solution leaving the measuring cell and containing the pollutant is once again supplied to the reaction chamber and produces a more intensive reaction.

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Inventors:

URUFUUDEIITERU KURAIZERU

Application Number:

JP7057777A

Publication Date:

February 23, 1978

Filing Date:

June 16, 1977

Export Citation:

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Assignee:

PHILIPS NV

International Classes:

G01N21/77; G01N33/00; (IPC1-7): G01N21/02; G01N31/00

Previous Patent: JPS5319889

Next Patent: GLOBULAR ALPHA-TYPE CALCIUM TERTIARY PHOSPHATE AND HYDRAULIC CALCIUM PHOSPHATE CEMENT COMPOSITION