Method of increasing the shelf life of a colorimetric device for

Details Method of increasing the shelf life of a colorimetric device for Method of increasing the shelf life of a colorimetric device for

1996-01-30

1999-10-12

Wu, Shean C.

Compositions

Nonreactive analytical, testing, or indicating compositions

422 86, 426442, G01N 3122, G01J 148

Patent

active

059650613

ABSTRACT:
A method of increasing the shelf life of a reversible calorimetric device for indicating carbon dioxide is disclosed, which method comprises placing said device together with at least one non-toxic pH-lowering gas in a gas-tight wrapping or casing. A package is also disclosed which is prepared by means of said method. The invention also relates to the use of a non-toxic pH-lowering gas for increasing the shelf life of a device of the above mentioned type.

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Smolander, M et al., Leak Indicators For Modified Gas Atmosphere Packages, Trends Food Sci. & Technol. (1997), 8 (4), pp. 101-106.

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