Rapid self-contained biological indicator for steam sterilization processes. Geobacillus stearothermophilus (ATCC® 7953) 10⁶ spores per vial. Readout: 3 hours.
- Consistent and reliable spore population and D-value
- Sensitivity >97%
- Shelf-life: 2 years
- Must be read with Bionova Minibio autoreader (VWR part 77506-948)
- D-Value: not lower than 1.5 minutes at 121 °C, another D/value is informed at 132 and 135 °C
- Z-value is informed
A visual confirmation of the result is optional (color change of the medium caused by pH change) and can be made after incubation at 60 °C for 48 hours and/or for 7 days.
If sterilization process has not been successful, culture medium will change to a greenish color first, and then to yellow, thus showing the presence of living spores. If sterilization process is successful culture medium will remain purple after the incubation process.
7-day readout is optional and not intended to be routinely performed; it is an initial validation of the 3-hour reading. Fluorescence results may be compared to the 7-day visual reading.
Storage conditions:
T = 10 to 30 °C, RH = 30 to 80%, keep the product away from direct light.
Certifications: ISO 13485; ISO 11138; ISO 11140-1.
Packaging: 50 BIs per package.
