G - Physics – 01 – N
Patent
G - Physics
01
N
150/26, 150/7
G01N 21/78 (2006.01) G01N 31/22 (2006.01)
Patent
CA 1322941
ABSTRACT OF THE DISCLOSURE A colorimetric test reagent composition is presented for determining the amount of cyanuric acid in water. Cyanuric acid is added to outdoor swimming pool water to stabilize the chlorine added as a sanitizer. Basically the test composition utilizes melamine and an indicator material which responds to a change in pH of the test environment caused by the action of cyanuric acid on the reagent composition. Preferably the test composition is incorporated in a porous matrix which results in a convenient solid state test device.
587173
Hach Company
Osler Hoskin & Harcourt Llp
LandOfFree
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