An ANSI/AAMI/ISO 11140-1:2005 Class 4 chemical indicator used to determine whether the sterilization process conditions are met inside each pack.

• Distinct white to dark brown/black color change when exposed to steam sterilization
• Strip is perforated so it can be used at full or half length depending on pack size

Can be used in all 121 to 134 °C (250 to 273 °F) steam sterilization cycles.