24-minute readout Biological Indicator for 132°C (270°F) and 135°C (275°F) 3-minute and 10-minute Gravity-Displacement Steam Sterilization cycles (Blue Cap). The 3M Attest Super Rapid Readout Biological Indicator 1491 is a self-contained biological indicator specifically designed for rapid and reliable qualification testing and routine monitoring of 270°F (132°C) and 275°F (135°C) gravity-displacement steam sterilization processes when used in conjunction with the 3M Attest Auto-reader 490 or the 3M Attest Auto-reader 490H with software version 4.2.7 or greater. The self-contained design includes a spore carrier with spores of Geobacillus stearothermophilus and a media ampoule containing bacteriological media. The spore carrier and media ampoule are contained in a plastic vial topped with a blue cap. A chemical process indicator which changes from pink to light brown or darker upon exposure to steam is located on the top of the cap. After processing, the biological indicator is activated and incubated in the 3M Attest Auto-reader. A final negative reading after the specified incubation period indicates an acceptable sterilization process. A 24-minute result is provided when incubated in Model 490 or 490H Auto-readers having software version 4.2.7 or greater.

• Provides BI results in 24 minutes in 3M Attest 490/490H Auto-readers with software version 4.2.7 or greater
• Gravity: 132°C (270°F) 3 min. and 10 min. 135°C (275°F) 3 min. and 10 min.
• Helps deliver BI results often before a patient leaves the surgical suite
• 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
• When used with 3M Attest Auto-reader 490 or the Attest Auto-reader 490H with software version 4.2.7 or greater

†Continental U