Depyrogenation and Autoclave Sterilization Validation Checklist

Autoclave (Moist Heat) Validation

Establish steam sterilization lethality.

• Are heat penetration and temperature distribution studies performed across each validated load configuration? *
• Is a minimum F0 defined and achieved at the coldest point of the load? *
• Are biological indicators (Geobacillus stearothermophilus) used to demonstrate a minimum 6-log reduction? *
• Are worst-case (maximum and minimum) loads challenged? *

Dry-Heat Depyrogenation Validation

• Is a minimum 3-log reduction of endotoxin demonstrated using endotoxin indicators (spiked at >=1000 EU)? *
• Are heat penetration studies performed to confirm the FH lethality across the tunnel or oven load? *
• Is belt speed, temperature, and airflow controlled and recorded for continuous depyrogenation tunnels? *

Equipment Qualification and Controls

• Are temperature and pressure sensors calibrated with traceable standards before and after studies? *
• Is cycle control instrumentation qualified (IQ/OQ/PQ) for the sterilizer or tunnel? *
• Are alarms and interlocks challenged for out-of-range conditions?

Routine Monitoring and Revalidation

• Is each production cycle monitored against validated critical parameters and reviewed for release? *
• Is periodic revalidation performed and triggered by changes to load, equipment, or process? *