Biological Indicators
Self-contained Biological Indicator for Steam sterilization processes. Geobacillus stearothermophilus 10^5 or 10^6 spores per vial


Product type
BT20 Self-contained biological indicator
Main application
Terragene Bionova® BT20 Biological Indicators have been designed for quick and easy routine monitoring of gravity-displacement and vacuum-assisted steam sterilization cycles at 121-135 °C. Terragene Bionova® BT20 provides a final result after a 24-hour incubation at 60 ± 2 °C.
Key benefit
24-hour visual readout of sterilization efficacy
Technology or differentiator
Geobacillus stearothermophilus + color-change culture medium
Compatibility / usage environment
Designed for healthcare and industrial use; incubated at 60 ℃ in Bionova® systems