
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 viable Geobacillus stearothermophilus (ATCC 7953) spores. If successful, the color remains unchanged. Final readout is taken after 24 hours of incubation.
| 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 (Test condition: saturated steam 121ºC) |
| Incubation Time | 48h |
| Certificates | ISO13485 |











Established in 2015, the factory spans 100,000 square meters and is recognized as one of the most professional disposable dental products' suppliers. We specialize in high-quality sterilization solutions and a wide range of medical consumables.
Our supply range includes: Sterilization pouches & rolls, dental bibs, saliva ejectors, face masks, surgical gowns, dental kits, polishing brushes, barrier film, alcohol pads, surgical blades, and various dental needles.




Looking forward to cooperating with you in the future!