According to the International Organization for Standardization (ISO), a biological indicator is a test system containing viable microorganisms providing a defined resistance to a specified sterilization process. Biological Indicators (BIs) have been in use for several decades and are used in hospitals, food processing, tattoo parlors, dentist offices, pharmaceutical and medical device manufacturing, ambulatory surgical centers and anywhere else where validation and verification of an adequate sterilization cycle is required.
BIs come in many different shapes, sizes and configurations. Spore Strips have been in use for several decades and are still very widely used for a variety of sterilization processes. Self-Contained Biological Indicators (SCBIs) have become much more popular over the past 30 years, as they are more user friendly and often offer reduced incubation times. For situations where typical BIs are not appropriate, suspensions are widely used to directly inoculate product/substances and Mesa’s line of industrial use BIs are available to test the lethality of a sterilization cycle in a very specific area of a product or load.

EZTest   MesaStrip   MagnaAmp   SterilAmp II & 5230
Self-contained biological indicator intended for use in the monitoring of saturated steam, ethylene oxide, hydrogen peroxide and propylene oxide sterilization.   Ideal for monitoring steam, low temperature steam formaldehyde, ethylene oxide, dry heat, chlorine dioxide and gamma radiation industrial sterilization processes   Self-contained biological indicators ampoule for monitoring steam sterilization of liquids in containers or washer sterilizers   A compact, self-contained biological indicator for monitoring industrial steam sterilization of liquids in small containers
Spore Suspensions   Releasat   Smart-Read EZTest  
Calibrated suspensions of bacterial spores appropriate for direct inoculation of products for monitoring steam, ethylene oxide, dry heat, hydrogen peroxide, radiation and other sterilization processes   Spore strips and culture media set to evaluate the efficacy of chlorine dioxide, ethylene oxide, and steam sterilization   Self-contained color change biological indicator specifically designed for rapid evaluation in the Smart-Well incubator