Chemical and process indicators

Chemical indicators, adhesive labels and tapes. ISO 11140-1:2005 defines a classification into 6 classes, which allows chemical indicators to be distinguished based on their purpose. Some indicators are based on color changing inks and highlight the exposure to the sterilization process (e.g. indicator tape, stickers). Other systems, however, react with the color change only in the presence of certain minimum conditions relating to the critical parameters of the cycle, for example specific combinations of time-temperature-steam quality in the case of steam sterilization (integrators, emulators).

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