Method for the continuous measurement of the partial...

Details Method for the continuous measurement of the partial... Method for the continuous measurement of the partial...

G - Physics

01

N

73/59, 150/6

G01N 21/78 (2006.01) G01N 31/22 (2006.01)

Patent

CA 1276532

20365-2537 ABSTRACT A method and apparatus are described for the simple and direct measurement of the amount of volatile substances, such as ethanol and ammonia, in gases or vapors, especially air. The procedure employs using an optical system to observe a change in color in a sensitive optical filter, the color of the filter depending upon the amount of volatile substance present.

502786

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