Spore strips biological indicator for Gamma Radiation sterilization processes. Bacillus pumilus (ATCC 27142) 10⁶ spores per strip. It is suggested the use of Bionova® MC1020-2 culture medium. Readout in 48 hours.

• 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-Value is provided, calculated using limited Holcomb-SpearmanKarber method
• 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)

The envelope containing Bionova® BT70 Spore Strip is specifically designed to control gamma radiation sterilization processes. Spore strips should be incubated in Bionova® MC1020-2 growth medium tube or in appropriate growth medium for Bacillus pumilus growth.

If the sterilization process was not successful, MC1020-2 growth medium will turn to yellow after incubation at 37±2 ºC, thus indicating the existence of living Bacillus pumilus spores on the strips. If the sterilization process was successful, MC1020-2 Indicating Medium will remain its original color. A final readout should therefore be performed after 48 hours of growth medium incubation at 37±2 ºC.

For conventional culture media like TSB, incubation for 7 days at 37 °C is recommended.

Storage conditions:
T = 10 to 30 °C, RH = 30 to 80%