Geobacillus stearothermophilus Spore Ampoules 10^6 (RRS 14-21310) 

Most experts know the biological indicator (BI) as monitoring the sterilization process. This is because BI directly evaluates the sterilization process using resistant microorganisms. The RRS biological indicator consists of a plastic tube containing a glass ampoule containing a culture medium suitable for growth and a paper strip impregnated with 106 spores of Geobacillus stearothermophilus (ATCC 7953) and a cap that allows water vapor to enter the tube. The Steam Biological Indicator 10^5 (RRS 14-21110) is compliant with ISO 11138.