Process Challenge Device
Chemical Strips (Type 2 Chemical Indicator according to ISO 11140-1:2014) for use with Helix-PCD in the monitoring of Formaldehyde Sterilization Processes.


Product type
PCD‑A‑F1 Chemdye® Chemical Indicator for use in Helix‑PCD system
Main application
Monitoring formaldehyde sterilization cycles (LTSF/VFBT processes); ensures safe release of hollow loads by verifying sterilant penetration
Key benefit
Provides clear color change (bordeaux → green) to confirm sterilization efficacy; incomplete color change indicates penetration failure and prevents load release
Technology / differentiator
Compatibility / usage environment
Designed exclusively for formaldehyde sterilization; not suitable for steam, EO, or dry heat; ideal for healthcare, food, pharmaceutical and medical device industries