Evaluation of a number of chemical indicators for monitoring vaporized hydrogen peroxide (VH2O2) sterilization processes
Kirk, B. · Zentralsterilisation, Wiesbaden-Nordenstadt · 2020 · Heft 9 · S. 214 bis 224
Bibliografische Angaben
Zusammenfassung
Background: The study evaluated the characteristics and performance of eight chemical indicators (CIs) for monitoring VHP sterilization processes of type 1 and 4 according to EN ISO 11140-1. Method: CIs were exposed to processes in which VHP concentration ([c]), temperature (T) and time (t) were changed to give type 1 and 4 pass and fail conditions as described in EN ISO 11140-1. Changes to individual variables then explored the performance of the CIs similar to the approach taken for steam and ethylene oxide type 5 CIs. Colour change was evaluated visually, according to manufacturer’s instructions, by compariso…