3M Health Care is now Solventum

•   Placed within the autoclave pouch or instrument cassette.

•   Indicates whether the sterilant has penetrated the pack, rather than just being exposed to the sterilisation process.

•   Changes colour from off-white to black when fully processed.

•   Does not verify sterility, allows detection of certain procedual errors and equipment malfunction.

•   Recommended frequency: - every load.