Class 1 sterilization pouch with Internal and external chemical indicators. Can be used with Steam and ETO sterilization systems. The blue indicators will turn dark green on the left side of the pouch when processed with steam sterilization. The pink indicators will turn yellow on the right side of the pouch when processed by ETO sterilization. With Steam sterilization, our Benco Dental™ Steam Chemical indicator strips [3470-424] can be used in conjunction with the pouches. Our Benco Dental™ pouch meets the CDC infection control guidelines for effective sterilization and follows ISO standards for chemical indicators. Easy Peel, Fold and stick triple seal, they are latex free and lead free with a shelf life of 5 years. When pouch is properly sealed, sterility is maintained up to 2 years after Sterilization. Pouches should be stored in a cool dry place Temperature Parameters: 132°C with 3 minutes or 121°C with 30 minutes.