Using browns tubes as a sterilisation indicator, the observed colour change is from orange/brown to which colour?

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Multiple Choice

Using browns tubes as a sterilisation indicator, the observed colour change is from orange/brown to which colour?

Explanation:
Browne’s tubes act as a colorimetric check for steam sterilization. They start off orange/brown, and when the load has been exposed to the proper moist-heat conditions, the chemical in the tube changes color to green. Seeing green confirms the cycle reached the validated temperature and time. If the color remains orange/brown, the cycle did not meet the required conditions.

Browne’s tubes act as a colorimetric check for steam sterilization. They start off orange/brown, and when the load has been exposed to the proper moist-heat conditions, the chemical in the tube changes color to green. Seeing green confirms the cycle reached the validated temperature and time. If the color remains orange/brown, the cycle did not meet the required conditions.

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