Self-contained biological indicator for 121°C gravity and 132°C vacuum steam cycles. Contains Bacillus stearothermophilus spore strip, pH-sensitive growth medium, and color-change label for rapid visual confirmation. Used to verify steam sterilizer performance in laboratory, medical, and industrial settings. Pack of 100.

Specifications
Product Name: 3M™ Attest™ Biological Indicator for Steam Sterilization
SKU: 1262
Manufacturer: 3M
Industry: Food Safety / Sterilization Monitoring
Type: Self-contained Biological Indicator (BI)
Sterilization Compatibility: Steam (Gravity and Vacuum-Assisted Cycles)
Cycle Parameters: 121°C (250°F) gravity cycle / 132°C (270°F) vacuum-assisted cycle
Spore Type: Bacillus stearothermophilus
Indicator System: Bromocresol purple pH indicator with color change from purple to yellow for positive growth
Processing Indicator: Chemical indicator on label changes from rose to brown when exposed to steam cycle
Construction: Spore strip sealed in a glass ampule containing growth medium; brown color-coded cap with sterilant penetration holes; hydrophobic filter for bacterial barrier
Readout Time: 48 hours (visual color readout)
Result Interpretation: Yellow = Positive (growth detected); Purple = Negative (no growth)
Use Case: Routine monitoring of steam sterilizer efficacy in healthcare, food safety, and laboratory environments
Advantages: Minimizes contamination risk and false positives; reduces potential for product recalls when used in every sterilization load; easy-to-use, self-contained format
Packaging: 100 biological indicators per package
Storage Conditions: Store at room temperature away from direct sunlight
Compliance: Meets AAMI/ANSI and ISO standards for biological indicator performance