Attest™ Super Rapid ReadoutSteam Challenge Pack 1496V - 1-Hour Biological Indicator Challenge Pack for 132°C (270°F) 4 minute and 135°C (275°F) 3 minute Vacuum-Assisted Steam Sterilization. Each pack contains one 3M™ Attest™ Super Rapid Readout Biological Indicator 1492V. Includes 24 controls. Offers 3X faster results than Attest Rapid BIs for 270°F and 275°F vacuum-assisted steam sterilization cycles - Helps deliver BI results in about the same time as it takes to cool a load - Meets ISO and FDA performance requirements for biological indicators - Contains viable organisms that provide a direct measure of lethality - Puts your instrument turnaround speed into overdrive for improved patient safety