Sterilization Biological Indicator is used to determine disinfecting attributes of plasma, steam and ethylene oxide. This indicator consists of glass made sealed ampoule and bacterial spores packed on paper. The ampoule is filled with culture media and has a ph indicator. Color of this ph indicator tends to change as per the status of spores. Application of this Sterilization Biological Indicator can be noticed in laboratory, hospitals and clinics. Long storage life, ease of monitoring and ISO approved standards are the main attributes of this product.