PACK TEST INSTANT READ BIOLOGICAL STEAM Contains an EZ test self-contained biological indicator and an instant readout integrator cardAfter sterilization, the instant readout integrator card predicts the outcome of the biological test for immediate loadrelease Distinctive color change from purple to yellow if spores survive Self-containedbiological indicator can be incubated for 24 hours in any small incubator Steam Biological Test Pack Instantly Predicts Outcome. Med-Checks' instant readout steam test pack has a self-contained biological indicator and an instant readout integrator card. After sterilization, the instant readout integrator card predicts the outcome of the biological test by displaying a distinctive purple to green color change. The biological indicator will change from purple to yellow if the spores survive. Test Pack Unit: CS