A significant drop in recovery (>50% loss) without corresponding loss in activity signals LER potential.

While summaries and excerpts exist online, professionals seek the for specific reasons:

PDA TR 82 serves as a comprehensive guide for the design, validation, and routine operation of dry heat depyrogenation tunnels and ovens. While dry heat sterilization has been used for decades, TR 82 addresses the specific complexities of (the destruction of endotoxins/pyrogens), which requires significantly higher temperatures and longer exposure times than standard sterilization.