3M Comply Lead-Free Steam Indicator Tape 1322 (18 mm × 55 m) is the trusted, Class 1 chemical indicator tape designed for secure sealing and reliable monitoring of steam sterilization cycles in hospitals, dental clinics, sterile processing departments (SPD), ambulatory surgery centers, and labs. This lead-free tape provides immediate visual confirmation of exposure to steam sterilization conditions with a distinct color change from off-white to black — ensuring packs, trays, and pouches have been processed.