Device and method for the determination of the specific gravity

Details Device and method for the determination of the specific gravity Device and method for the determination of the specific gravity

1976-01-08

1977-04-05

Queisser, Richard C.

Measuring and testing

Specific gravity or density of liquid or solid

23230B, 23253TP, 73 643, G01N 900, G01N 1304

Patent

active

040154629

ABSTRACT:
Devices and methods are provided for determining specific gravity or osmolality of liquids. The preferred devices comprise a carrier matrix incorporated with microcapsules having osmotically fragile, semipermeable polymeric membrane walls encapsulating therein a solute and a coloring substance. In use, the test device is contacted with the liquid to be tested, and color change on the carrier matrix is observed as a measure of the specific gravity or osmolality of the liquid.

REFERENCES:
patent: 3092463 (1963-06-01), Adams, Jr. et al.
patent: 3932132 (1976-01-01), Hijikata

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