SporAmpule™ Biological Indicator Steam-TabletopAn in office biological indicator (BI) system ideal for monitoring liquid cycles and gravity steam sterilization cycles. This system requires no crushing or activation and gives clear, easy to interpret results. Purple to yellow color change or visible turbidity of a processed ampule indicates sterilizer failure. Final results are known after 48 hours incubation in any compatible dry block incubator operating at 55 60C. For new customers: a starter