Sterilization detection device and method

Details Sterilization detection device and method Sterilization detection device and method

G - Physics

01

N

150/21

G01N 31/22 (2006.01) A61L 2/28 (2006.01) G01K 11/12 (2006.01)

Patent

CA 1083936

ABSTRACT OF THE DISCLOSURE In measuring the dose of sterilant delivered to an en- closed space, a mixture of a salt of a strong acid and a weak base and an acid-alkali indicator dye is disposed within a container element impermeable to the sterilant. The container has an opening, and the sterilant passes through the opening into the container where it reacts with successive moieties of the mixture to effect a colour change relative to the unreacted mixture. The reaction progressively advances away from the opening as the dose of the sterilant increases, whereby the extent of the advancing colour change indicates the integration of time, temperature and sterilant concentration delivered to the enclosed space.

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