The Steam Biological indicator is specially designed for monitoring steam sterilization processes. If the sterilization process is unsuccessful, after incubation at 60±2°C the color of the medium will change from purple to yellow or its shades, indicating the presence of still viable Geobacillus stearothermophilus (ATCC 7953) spores.
If the sterilization process is successful, there will be no change in the color of the medium after incubation, it will remain in its original color. The last readout should be taken after 24 hours of incubation at 60±2°C.
| Product Name: | Self-contained Biological Indicator for Moist Heat Sterilization |
| Type: | BF-BI4 |
| Units per Pack: | 25 pcs/box |
| Indicator Bacteria: | G. stearothermophilus, ATCC7953 |
| Spore population: | ≥1.0×10⁵ cfu |
| D-Value: | ≥1.5min (Condition: saturated steam 121ºC) |
| Incubation Time: | 48h |
| Result Interpretation: | Color Change: positive; No Color Change: negative |
| Certificates: | ISO13485 |
Consists of medium in a glass ampoule, a disc inoculated with Geobacillus stearothermophilus (ATCC 7953) spores, a chemical indicator strip, a plastic tube, a plastic cap, and a filter paper inside the cap.











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