AS5369:2023 Replaces AS4187 What Australian Practices Must Update

AS5369:2023 vs AS4187: What Australian Practices Must Update in Their Sterilisation Workflow

If your practice has been running sterilisation processes under AS4187, it is time to take stock. AS5369:2023 — Reprocessing of reusable medical devices and other devices in health service organisations — is now the governing standard for sterilisation and reprocessing in Australian healthcare settings, and it brings with it a set of meaningful changes that affect how clinics, GP practices, dental surgeries, and day procedure centres operate day to day.

This is not a cosmetic update. The shift from AS4187 to AS5369:2023 reflects a broader alignment with international best practice, a stronger emphasis on risk-based thinking, and tighter obligations around documentation and validation. If your sterilisation workflow has not been reviewed since the new standard came into force, there is a real possibility your practice is falling short of current requirements — and that has implications not just for compliance, but for patient safety.

This post walks through the most significant differences between the two standards, what they mean for your practice, and what steps you need to take to get — and stay — compliant.

Why the Standard Changed: Understanding the Shift from AS4187 to AS5369:2023

AS4187 served Australian healthcare for many years, but the sterilisation landscape has evolved considerably. Device complexity has increased. Risk frameworks in healthcare have matured. And international standards — particularly those from ISO — have become more sophisticated in how they approach reprocessing validation and quality management.

AS5369:2023 was developed to bring Australian practice into closer alignment with ISO 17665 (for steam sterilisation) and the broader ISO 15883 series (for washer disinfectors), while addressing the specific operational realities of the Australian healthcare environment. The result is a standard that is more systematic, more explicit about accountability, and more demanding when it comes to evidence.

It is also broader in scope. While AS4187 was specifically directed at sterilisation of reusable medical devices in health service organisations, AS5369:2023 encompasses the entire reprocessing pathway — from point-of-use handling through cleaning, disinfection, inspection, packaging, sterilisation, and storage. That end-to-end framing matters because it places every step of the process under the compliance microscope, not just the autoclave cycle itself.

Validation Requirements: What Has Changed and Why It Matters

One of the most significant changes under AS5369:2023 relates to validation — the formal process of demonstrating that your sterilisation equipment consistently delivers sterile outcomes under defined conditions.

Under AS4187, validation requirements existed but were often interpreted with some flexibility in smaller practice settings. AS5369:2023 closes that gap. It mandates that sterilisation processes be validated in accordance with the relevant ISO standards, and it is explicit that this applies across practice types and sizes — there is no small practice exemption.

What this means practically:

Your autoclave must undergo formal installation qualification (IQ), operational qualification (OQ), and performance qualification (PQ). These are not one-off events. Performance qualification in particular must be repeated at defined intervals and whenever there is a significant change — a new load type, a change in packaging, a repair to the steriliser, or a relocation of the equipment.

The standard also introduces clearer requirements around annual revalidation. Where AS4187 could leave some ambiguity about the frequency and scope of ongoing validation, AS5369:2023 is more prescriptive. Annual validation cycles must be documented, and the documentation must be retained and available for review — whether that review comes from your accreditation body or an infection control audit.

This is where many practices will feel the most immediate pressure. If your current service provider is simply running a maintenance check and calling it a validation, that is no longer sufficient. True validation under AS5369:2023 requires a structured, documented process that tests actual performance under worst-case conditions.

NES Group Medical conducts autoclave validation that is fully aligned with AS5369:2023 requirements, including IQ/OQ/PQ protocols and detailed validation reports that stand up to accreditation scrutiny.

Documentation Obligations: The Paper Trail Is Now Non-Negotiable

If there is one area where AS5369:2023 represents a step change from AS4187, it is documentation. The new standard is far more explicit about what records must be kept, in what format, and for how long.

Under AS5369:2023, practices must maintain records across the entire reprocessing workflow. This includes:

Cycle records for every sterilisation run, including the date, operator, load contents, cycle parameters, and test results. These records must be retained for a minimum period that aligns with state-based legislation and your specific patient cohort — and for devices used in surgical procedures, that retention period can extend for many years.

Maintenance and validation records that demonstrate your equipment has been serviced and validated on schedule. This includes all IQ, OQ, and PQ documentation, service reports, and records of any corrective actions taken following a failed or unsatisfactory cycle.

Training records for every staff member involved in reprocessing. AS5369:2023 places explicit emphasis on competency-based training — it is not enough to have attended a session. Staff need to be assessed as competent in the specific tasks they perform, and those assessments need to be documented.

Batch traceability records linking specific instruments or packs to specific patient procedures. This is particularly relevant for day surgeries and specialist practices, where the ability to trace a device back through the reprocessing chain is essential if a sterilisation failure is ever suspected.

For practices used to maintaining paper-based logbooks, this level of documentation can feel daunting. Digital record-keeping systems are increasingly common and can simplify compliance considerably, but the underlying requirement remains the same regardless of the format.

Workflow Changes: From Point of Use to Storage

AS5369:2023 does not just tighten the autoclave requirements — it mandates a more disciplined approach across the entire reprocessing workflow.

Point-of-use handling is now explicitly addressed. Instruments must be kept moist after use to prevent bioburden from drying and hardening, which compromises the effectiveness of subsequent cleaning. If your current workflow involves leaving instruments on a tray for extended periods before reprocessing, that needs to change.

Cleaning validation receives considerably more attention under the new standard. The effectiveness of your washer disinfector — or manual cleaning process if that is what your practice uses — must be demonstrated and documented. For practices using automated washer disinfectors, this ties into the ISO 15883 series, and validation of the cleaning process is now as important as validation of the sterilisation cycle. NES Group Medical provides washer disinfector validation services that address these requirements directly.

Packaging requirements have also been tightened. AS5369:2023 specifies requirements around packaging materials, sealing integrity, and labelling — including the requirement that each pack be labelled with the steriliser ID, cycle number, and expiry date. Practices using outdated packaging systems or inconsistent labelling practices will need to review their approach.

Storage conditions for sterile stock are addressed more formally, with requirements around clean storage environments, handling protocols, and event-related rather than time-related expiry approaches being embedded more clearly in the standard’s logic.

Accreditation Implications: RACGP, QIP, AGPAL and Beyond

For GP practices seeking RACGP accreditation, and for day surgeries and specialist centres accredited through QIP or AGPAL, the transition to AS5369:2023 has direct implications for your accreditation cycle.

The RACGP Standards for General Practices reference infection prevention and control — including sterilisation — as a key safety domain. Assessors are increasingly aware of the updated standard and will be looking for evidence that practices have reviewed and updated their reprocessing procedures accordingly. A validation report prepared under AS4187 methodology will not demonstrate compliance with AS5369:2023.

For HSO-accredited facilities and day surgeries operating under NSQHS Standards, the pressure is even more acute. The NSQHS Standards specifically reference sterilisation and reprocessing under the Preventing and Controlling Healthcare-Associated Infection standard, and compliance with the current Australian standard is a baseline expectation.

The practical implication: if your accreditation renewal is approaching and your sterilisation documentation reflects old methodology, you are at risk of a finding. Addressing this before assessment is considerably less disruptive than responding to a non-conformance after the fact.

Aged Care Settings: Additional Considerations

Aged care facilities that operate clinical services — including wound management, minor procedures, or dental services — are also within scope of AS5369:2023. The Aged Care Quality Standards require that clinical governance frameworks address infection prevention and control, and sterilisation of reusable devices is explicitly part of that.

For aged care operators, the challenge is often one of resource and awareness. Sterilisation equipment in aged care settings is sometimes less well-maintained and less frequently validated than in acute settings. AS5369:2023 makes clear that the standard of compliance expected is not scaled to the size or type of facility — it is based on the risk profile of the procedures being performed and the devices being reprocessed.

NES Group Medical works with aged care providers across Australia to bring sterilisation and medical equipment maintenance programmes into line with current standards, including AS5369:2023 compliance support and ongoing equipment testing under AS/NZS 3551.

What Your Practice Should Do Now

If you have not already taken stock of how your sterilisation workflow measures up against AS5369:2023, here is a practical starting point.

First, review your current validation documentation. When was your autoclave last formally validated? Was that validation conducted to IQ/OQ/PQ standards, or was it a maintenance service dressed up as a validation? If you are not certain, that is your answer.

Second, audit your documentation practices. Are cycle records being kept for every run? Is batch traceability in place? Are staff training and competency records up to date? Does your documentation include the level of detail that AS5369:2023 requires?

Third, review your reprocessing workflow against the full scope of the standard — not just the sterilisation step. Point-of-use handling, cleaning, packaging, and storage all need to be assessed.

Fourth, if you identify gaps — and most practices will — engage a specialist to help you close them. Autoclave validation under AS5369:2023 is not a DIY exercise. It requires calibrated test equipment, documented methodology, and technical expertise. Getting it done properly now is far less costly than dealing with an accreditation non-conformance, a patient safety incident, or both.

Partnering with NES Group Medical for AS5369:2023 Compliance

NES Group Medical has been supporting Australian healthcare facilities with autoclave validation, servicing, and repair for many years. Our team understands the technical requirements of AS5369:2023 and the practical realities of clinical environments — from single-GP practices to multi-site specialist groups and day surgery centres.

We provide full autoclave validation services aligned with the current standard, including installation qualification, operational qualification, and performance qualification, with comprehensive documentation packages that are designed to support your accreditation process. We also offer washer disinfector validation, medical equipment testing and calibration under AS/NZS 3551, and body and cardiac protected area testing under AS 3003:2018 — giving your practice a single, expert point of contact for all equipment compliance obligations.

If your practice is navigating the transition from AS4187 to AS5369:2023 and you want clarity on where you stand and what needs to change, we are ready to help.

If you need expert medical equipment testing, calibration, or compliance support, NES Group Medical is here to help. Get in touch at nesgroup.com.au/contact-us or call 1300 651 958.