U-test Biological Indicators, 50/Bx
- Self-contained biological indicator inoculated with viable 106 Geobacillus stearothermophilus bacterial spores
- Spore Tests Results in just 1 hour
- On each BI is a chemical process indicator that changes color from pink to brown when exposed to steam
- Easy to use and 100% accurate
maxill u ‚¬ ¢tests BIs contain bacterial spores (Geobacillus stearothermophilus) on filter paper in a specially designed double walled ampoule. The unique design and culture media create a system that allows each BI to be used as the ‚¬Å“spore test ‚¬ or the positive control.
The dramatic Colour change identifies bacterial spore growth and allows you to easily identify a failed sterilization process.
Biological indicators are the most accepted means for monitoring of sterilization because they directly assess the procedure effectiveness in killing the most resistant type of micro-organisms which are bacterial spores.
The bacterial spores used, G. stearothermophilus, are more resistant and present in greater numbers than common microbial contaminants found in the dental office.
Therefore a inactivated biological indicator signifies other micro-organisms that underwent the same process have actually been destroyed, thus confirming sterilization.