Different biological indicators are
used for different sterilisation
processes. Biological indicators are
designed for use with:
• Ethylene oxide gas (Bacillus
atrophaeus).
• Hydrogen peroxide vapour
(Geobacillus stearothermophilus).
• Dry heat (Bacillus atrophaeus).
• Moist heat (steam) (Geobacillus
stearothermophilus).
• Radiation (Bacillus pumilus).
• Membrane filtration
(Brevundimonas diminuta)
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