Biological Indicators for Sterilization

Biological indicators (BIs) provide information on whether necessary conditions were met to kill a specified number of microorganisms (bacterial spores) for a given sterilization process. STERIS’s full portfolio of biological indicators offer testing for a variety of applications including steam sterilization and vaporized hydrogen peroxide (VHP) sterilization. In these applications, Geobacillus stearothermophilus spores are primarily used due to their high resistance to these sterilization processes.

BIs are typically used within process challenge devices (PCD), designed to represent the most challenging products routinely processed for autoclave sterilization testing. A passing result for the BI within the PCD demonstrates that the sterilization cycle was effective at inactivating the BI, providing Sterile Processing Department staff with a level of assurance in their steam or VHP sterilization process.

Browse STERIS biological indicators including self-contained biological indicators (SCBI) and process challenge devices or test packs. These devices play a critical role in sterility assurance and provide the only direct measure of the lethality of the sterilization process.

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Biological Indicators for Steam Sterilization

Celerity™ 20 Steam Biological Indicator

Fast 20-minute results for load monitoring
Easy to use twist and flick activation means no separate activator needed
Integrated barcode label makes electronic documentation easy

Celerity™ 20 STEAM Process Challenge Device

Fast 20-minute results for load monitoring
Compact process challenge device for easy testing and quick interpretation
Validated for either dynamic air removal or gravity steam sterilization cycles

Celerity™ 20 Steam Biological Indicator for IUSS

Validated for gravity IUSS cycle monitoring
Quick device turnaround with results in just 20 minutes
Integrated barcode makes electronic documentation easy

Celerity™ Xtend 10 Assembly

Biological Indicator (BI) Test Pack validated for extended10-minute cycles
20-minute BI incubation time for fast results and quick device turn-around
Validated for use only with the VERIFY All-In-One STEAM Reusable Test Pack

VERIFY^® Assert™ Self-Contained Biological Indicator

Provides results within 40 minutes
Self-contained biological indicator used for routine monitoring, qualification, and product testing
Easy to use and activate – no separate activator is required

VERIFY Assert Steam Process Challenge Device

Rapid results within 40 minutes
Used for routine monitoring, qualification, and load monitoring of dynamic air removal cycles (LCB032/LCB033) and for qualification, routine microbial monitoring, and cycle monitoring of gravity cycles (LCB043)
Equivalent to an ANSI/AAMI ST79 16-Towel Biological Indicator Test Pack
Lightweight and compact biological indicator process challenge device

VERIFY^® Biological STEAM Test Pack

Provides results in 24 hours
Chemical Indicator provides immediate knowledge of steam sterilization failures
Equivalent to an ANSI/AAMI ST79 16-Towel Test Pack

VERIFY^® Biological/Integrator Challenge Pack

Provides results in 24 hours
Type 5 chemical integrator provides immediate knowledge of steam sterilization failures
Equivalent to an ANSI/AAMI ST79 16-Towel Test Pack

VERIFY^® Dual Species Self-Contained Biological Indicators

Provides results within 24 hours for steam sterilization
Provides results within 48 hours for ethylene (EO) Sterilization

Biological Indicators for Vaporized Hydrogen Peroxide Sterilization

Celerity™ 20 HP Biological Indicator

Provides fast results within 20 minutes
Easy-to-use and activate – biological indicator requiring no separate activator
Single-use biological indicator for use with V-PRO^® Low Temperature Sterilization Systems and STERRAD Systems^*1

Celerity™ 20 HP Challenge Pack

Provides results within 20 minutes of incubation
Qualification of V-PRO^® Low Temperature Sterilizers in less than four hours
Sterilization challenge pack includes the Celerity™ 20 HP Biological Indicator, a chemical indicator strip and a blue polyurethane foam sheet

VERIFY^® v24 Self-Contained Biological Indicator

Provides results in 24-hours
For use with V-PRO^® Low Temperature Sterilization Systems and STERRAD Models*
Self-contained biological indicator, with a Type 1 chemical indicator

VERIFY^® v24 Challenge Pack

Provides results in 24 hours
Preassembled biological indicator challenge pack
Used for qualification of V-PRO Low Temperature Sterilization Systems

Biological Indicator Incubators

Celerity™ Incubator

Universal incubator for use with both Celerity™ STEAM and VH2O2 Biological Indicators
Compact design requires minimal workspace while holding up to eight biological indicators
Connectivity allows for electronic record keeping and integration with tracking systems

Celerity™ STEAM Incubator

Provides fast results of the Celerity™ 20 STEAM Biological Indicator in only 20 minutes
Audio and visual alarms aid in easy results interpretation
Offers electronic record keeping capabilities to assist with audits

Celerity™ HP Incubator

Designed exclusively to incubate and read activated Celerity™ 20 HP Biological Indicators
Provides a final readout within 20 minutes
Audio and visual alarms for easy interpretation of results

VERIFY^™ Incubator for Assert™ Self-Contained Biological Indicators

Designed exclusively to incubate and read activated VERIFY^® Assert™ Self-Contained Biological Indicators (SCBIs)
Provides a final readout within 40 minutes
Audio and visual alarms for easy interpretation of results

VERIFY™ Incubators

For use with VERIFY^® Biological Indicators
Tabletop incubator available for steam, VHP and EO biological indicators
Available in 6 or 28 well capacity, and a 28 well dual temperature incubator

_{* As of 8/9/2021 the Celerity 20 HP Biological Indicator has been validated for use in all cycles on the STERRAD 100NX, STERRAD NX and STERRAD 100S Sterilizers.}

_{¹STERRAD^® is the registered trademark of Advanced Sterilization Products.}