Beyond ST108: How ST91 and Emerging ST79 Guidance Affect Sterile Processing

Thank you to everyone who joined the webinar. We hope you left with valuable insights to support your integration of three key standards into your sterile processing operations.

On this page, you’ll find:

• The full webinar replay
• A summary of the session
• A downloadable PDF of the presentation slides
• A free digital assessment tool to help you evaluate your facility readiness

Watch the Replay

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Session Overview

With the release of ANSI/AAMI ST108, water quality has been more clearly defined as a foundational element of medical device processing. While ST108 establishes specific expectations for water used in cleaning, rinsing, and reprocessing activities, it does not exist in isolation. Sterile processing departments continue to operate within a broader standards framework that already includes ANSI/AAMI ST91, with additional updates to ANSI/AAMI ST79 forthcoming.

For those of you who may have missed our previous ST108 webinar, check out the recording along with our free tool for evaluating the current state of your Sterile Processing Department as a first step towards ST108 compliance. Upon completion (via online form or emailed PDF) we will provide a complimentary analysis of your inputs and phased guidance for next steps

This educational webinar explored how ST108 fits into that existing landscape and how water-quality expectations support the intended outcomes of ST91 and ST79. While neither ST91 nor ST79 is a water standard, both rely on appropriate water quality and system performance to support effective cleaning, disinfection, sterilization, and overall process reliability within sterile processing environments. The session also addressed how water management considerations would best intersect with sterile processing practices as future revisions to ST79 are developed, without assuming or predicting specific requirements.

Free Resource: Sterile Processing Utilities & Water Integration Assessment for Operational Alignment

We’ve developed an assessment tool to help facilities evaluate where water and utility conditions intersect with sterile processing and endoscope reprocessing practices. This tool is intended to support multidisciplinary discussion and operational alignment; it does not replace facility policies, manufacturer instructions for use, or formal compliance assessments.

Do You Have a Question About ST108, ST91, or ST79?

If your facility is interested in learning more about the standard or have questions about implementing micro- or ultrafiltration in your sterile processing setup], we’re here to help. Contact us to set up a conversation or arrange additional training.