Spore strips biological indicator for steam and formaldehyde sterilization processes. Geobacillus stearothermophilus (ATCC 7953) 10⁶ spores per strip. It is suggested the use of Bionova® MC1020-2 culture medium. Read out after 24 hours for Steam, or 48 hours for formaldehyde.
- Consistent and reliable spore population and D-value
- Envelope size: 25×70 mm non-absorbent material package
- Spores carrier inside: 5×25 mm filter paper strip
- D-ValueSTEAM: not lower than 1.5 minutes. Conditions: 121°C
- Z-ValueSTEAM: not lower than 6 °C
- D-ValueFORM: not lower than 6.0 min, Conditions: 60 °C, 1 mol/L formaldehyde
- Shelf-life: 2 years
- Separate culture medium is required
- Culture medium MC1020-2 (VWR# 77506-994) and incubation in Bionova dual incubator IC10/20 recommended (VWR part 77506-948)
Spore strips should be incubated in Bionova® MC1020-2 growth medium tube or in appropiate growth medium for Geobacillus stearothermophilus ATCC® 7953 growth.
If the sterilization process was not effective, MC1020-2 Growth Medium will turn to yellow after incubation between 55 to 62 °C, thus indicating the existence of living Geobacillus stearothermophilus spores on the strips.
If the sterilization process was effective, MC1020-2 Indicating Medium will remain its original color. A final readout should therefore be performed after 24 hours of growth medium incubation between 55-62ºC for Steam sterilization processes control, or 48 hours between 55 to 62 °C for Formaldehyde sterilization processes control.
For conventional culture media like TSB, incubation for 7 days between 55 to 62 °C is recommended.
Storage conditions:
T = 10 to 30 °C, RH = 30- to 80%
Certifications: ISO 13485; ISO 11138; ISO 11140-1.
Packaging: 100 units per pack.
