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Barnstead/Thermolyne Sure* Biological Indicator
. Verify the sterility of your instruments, vials, media, liquid cycles and other products in less time than it takes to send samples to an outside lab
. Save up to 60% of the cost of outside laboratory sterility tests
. Obvious color change from purple to yellow indicates an ineffective sterilization process
. Two biological indicators to choose from: 1) for media and liquids (sterilamp II) 2) for instruments, glassware and other applications (Sure Biological Indicators)