
The 3M Attest Steam Biological Indicator, 1261, is a self-contained biological indicator designed to monitor 270°F/132°C gravity displacement steam sterilization cycles. It contains a Geobacillus stearothermophilus spore strip and a sealed glass ampoule with growth media and a bromocresol purple pH indicator. After processing, the indicator is activated and incubated for 24 hours; a color change from purple to yellow indicates a positive result (surviving spores), while purple indicates a negative result.
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The 3M Attest Steam Biological Indicator, 1261, is a self-contained biological indicator designed to monitor 270°F/132°C gravity displacement steam sterilization cycles. It contains a Geobacillus stearothermophilus spore strip and a sealed glass ampoule with growth media and a bromocresol purple pH indicator. After processing, the indicator is activated and incubated for 24 hours; a color change from purple to yellow indicates a positive result (surviving spores), while purple indicates a negative result.
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