Qosina has added sterilization indicators to its product line. These indicators show a color change to signify proper exposure to various sterilization processes, and are available for ETO (ethylene oxide) sterilization, steam sterilization, and radiation sterilization (Gamma or E-Beam). By the observable color change, it is easy to determine whether or not a particular sample has been through a qualified sterilization process. After exposure to the sterilization process, the indicators retain their color change indefinitely. The labels are approximately one-half inch in diameter and are available on rolls of 5,000.