Chemdye CD16 Multivariable Process Indicators, Type 4 according to ISO 11140-1:2014 standard, are single-use chemical indicators that consist of punched paper double strips printed with indicator ink. These indicators have been designed to monitor Ethylene Oxide sterilization processes within loads, ensuring adequate exposure to the sterilizing agent during the sterilization process and allowing for distinguish between processed and unprocessed items. Innovative highly sensitive purple/brown ink was developed to turn green when the indicator is exposed to Ethylene Oxide considering the critical process variables which provide additional quality assurance.

Indicators are 100 % free of toxic heavy metals.