Traditional SCBIs

Crosstex Traditional Self-Contained Biological Indicators (SCBIs) for monitoring steam sterilization consist of a durable polycarbonate vial with cap, a crushable glass ampoule with Trypticase® Soy Broth (TSB) modified with pH indicator, and a disc inoculated with Geobacillus stearothermophilus spores.

  • Reduced incubation time of 24 hours
  • Visually distinct positive results indicated by the media transitioning from Purple to Yellow
  • Chemical Indicator on label provides instant indication of exposure

Trypticase® is a registered trademark owned by Becton, Dickinson and Company.


Ref # Population Quantity
SCS-05 105 50/box
SCS-06 106 50/box

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TDS - Steam Traditional SCBI 10E6 (SCS-05 and SCS-06) Rev. 1.1
Technical Data Sheets (TDS)
Process Steam
Organism Geobacillus stearothermophilus Cell Line 7953
Indications for Use The SCBIs may be utilized to monitor Steam sterilization process efficacy. The SCBIs are labeled For Industrial Use Only.
Incubation Time 24 hours
SCBI Dimensions 13 mm x 61 mm
Chemical Indicator Each SCBI vial label contains a Chemical Indicator for instant indication of exposure.
Packaging 50 SCBIs/Box
Compliance ISO 11138-1 Sterilization of health care products – Biological indicators – Part 1: General requirements ISO 11138-3 Sterilization of health care products – Biological indicators – Part 3: Biological indicators for moist heat sterilization processes USP
Shelf Life Typically 24 months from the day of manufacture.  The shelf life of the SCBIs is based on the shorter of the two individual components (the media ampoule and inoculated carrier), which have independent expiration periods.
Storage Conditions 15°C to 30°C, 20-70% relative humidity