Ethylene Oxide EO Sterilization Validation Procedure | ISO 13485 | FDA QMSR

The Ethylene Oxide (EO) Sterilization Validation Procedure governs the requirements for the validation, revalidation, adoption, and routine sterilization of medical devices by EO gas in accordance with ISO 11135.

• MS Word Format

• Digital Content - Instant Download

EO Sterilization Validation Procedure

The ISO 13485:2016 Ethylene Oxide (EO) Sterilization Validation Procedure defines the planning and testing requirements for conducting the validation, re-validation, adoption and routine sterilization of medical devices by ethylene oxide (EO) gas in accordance with ISO 11135.

EO Sterilization Validation Procedure Overview

The EO Sterilization Validation Procedure includes guidance on development of EO validation protocols including test considerations, selection of master challenge device, identification and placement of biological indicators (BI's) and more, The procedure includes guidance on routine monitoring and instruction on how to evaluate products for adoption into an existing EO sterilization cycle. along with required documentation. The EO Sterilization Validation Procedure also provides guidance on how to group products EO sterilization product families and the establishment of an EO processing category.

The revised procedure addresses ISO 11135:2014 with Amendment 1:2018 and ISO 10993-7:2026 for evaluation of ethylene oxide sterilization residuals.

Regulatory framework

For U.S. medical devices, the applicable quality-system framework is FDA's Quality Management System Regulation (QMSR), 21 CFR Part 820, effective February 2, 2026. It incorporates ISO 13485:2016 and includes additional FDA requirements. Adapt and implement this documentation for your device, activities and markets; purchasing a document does not establish regulatory compliance or certification.