The emulator sterilization indicator card is designed to react to steam sterilization process. The colors change continuously according to exposure time and temperature.

First, the blue ink color turns to black, but the result is unsafe. Second, the green color changes to black. The result is safe when the sterilization process at 134℃ for 7 minutes or 121℃ for 20 minutes. The safe result could exceed the performance requirements given in ISO11138 series of Bls. Third, the yellow color changes to black. The result is optimum.

The emulator sterilization indicator card belongs to CLASS 6 according to ISO 11140-1.