Chemical Integrator for Steam Sterilization | Type 5 | 250 Strips/Bag Engineered for precision and reliability, this FDA-cleared Type 5 Integrating Indicator (per ISO 11140-1) provides comprehensive control of steam sterilization processes across a wide temperature range of 118°C to 138°C. Each compact strip (52mm x 21mm) features a paper wick and a steam- and temperature-sensitive chemical pellet housed in a paper/film/foil laminate. During sterilization, the pellet melts and migrates as a visible dark bar along the wick — delivering a clear, unambiguous ACCEPT or REJECT result. The ACCEPT endpoint is calibrated to the kill time of a 10⁶ Geobacillus stearothermophilus spore population (validated in a BIER vessel at 121°C, 128°C, and 135°C), ensuring true process integration rather than mere parameter monitoring. Migration is dependent on steam quality, time, and temperature — making this integrator a comprehensive verification tool for your sterilization cycle. Supplied in convenient bags of 250 strips. Please consult the instructions for use for cycles applicable in your country.