Time temperature integrating indicator

Details Time temperature integrating indicator Time temperature integrating indicator

G - Physics

01

N

73/123

G01N 21/01 (2006.01) A61L 2/28 (2006.01) G01K 3/04 (2006.01) G01N 31/22 (2006.01)

Patent

CA 1049288

ABSTRACT OF THE DISCLOSURE The temperature history of a product is visually displayed as a color front on an indicator, the distance of front advancement being a function of the temperature time integral. The indicator measures the gas generation in a first compartment by a wick in a second compartment, the wick also being in communication with the first compartment. Optionally, a gas permeable film separates the gas generating material and the wick.

226712

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