The concept of sterilization was born in the mid 18th century when Lazzaro Spallanzani demonstrated that sealed flasks boiled for a few minutes had living “animalcules,” but those boiled for an hour did not.
About a century later, Robert Koch became the first to use bacterial spores as biological indicators (BI), as they are known today. Koch conducted a series of experiments in which a roll of flannel contaminated with spores was exposed to dry heat. When exposed at 140-150°C for four hours, the spores survived
and germinated. When exposed to moist heat at 120°C for 30
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PRODUCT DESCRIPTION:
3 M Readout Biological Indicator for Steam 250 ° F / 121 ° C and 270 ° F / 132 ° C stab heat gravity displacement sterilization cycles.
Benefits:
• Reducing the possibility of self-contained biological indicators of pollution, to ensure accurate results and reduces false it-Back take.
• During quick results, making it possible to delete mention of collectors and each load.
• The system can help to reduce the costs associated with the infection – both in dollars and time spent at the time of measurement.
• Color-coded for quick reference and easy to use.