ISO 15883-5-2021 PDF

Full title and description

Washer‑disinfectors — Part 5: Performance requirements and test method criteria for demonstrating cleaning efficacy (ISO 15883-5:2021). This international standard specifies procedures, test soils and test methods used to demonstrate the cleaning efficacy of washer‑disinfectors and their accessories intended for cleaning reusable medical devices; it may also be applied to washer‑disinfectors used in dental, laboratory, pharmaceutical and veterinary contexts.

Abstract

ISO 15883-5:2021 defines performance requirements and acceptance criteria (visual, microbiological and chemical detection methods where applicable) and describes standardized test methods to demonstrate that washer‑disinfectors achieve adequate removal of soils from instruments and accessories. It does not cover activities performed by manufacturers of reusable medical devices and is intended to be used together with the general requirements and the other parts of the ISO 15883 series.

General information

• Status: Published (International Standard).
• Publication date: July 2021 (ISO edition 1, published 2021-07).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 11.080.10 (Sterilizing equipment / washer‑disinfectors).
• Edition / version: Edition 1 (2021).
• Number of pages: 59 pages (ISO published PDF); national/adopted versions may show different pagination.

Scope

The standard specifies procedures and test methods used to demonstrate the cleaning efficacy of washer‑disinfectors (WD) and their accessories intended for cleaning reusable medical devices. It provides criteria for performance testing (type testing and validation) of cleaning and specifies acceptance criteria for those tests. The document can be applied to WDs used in medical, dental, laboratory, pharmaceutical and veterinary practice but does not address the responsibilities or methods used by manufacturers of reusable medical devices themselves.

Key topics and requirements

• Defined test soils and contamination models to reproduce clinical soiling on instruments and accessories.
• Standardized cleaning test methods (procedures for application of test soils, washing cycles, sampling and analysis).
• Performance acceptance criteria — visual, microbiological end‑points and chemical residue detection where applicable.
• Requirements for test cycles, load configuration and use of accessories to ensure reproducible and representative results.
• Guidance on interpretation of test results and limitations (for example, prion removal/inactivation is not guaranteed by these performance criteria).
• Intended use as evidence for validation, type testing and comparison of cleaning performance across devices.

Typical use and users

Primary users are WD manufacturers, test laboratories, regulatory and conformity assessment bodies, hospital sterile‑processing departments, infection prevention teams, and purchasers of washer‑disinfectors. The standard is used for type testing, validation and demonstrating compliance with recognized performance criteria when specifying or procuring washer‑disinfectors.

Related standards

ISO 15883-5 is part of the ISO 15883 series for washer‑disinfectors. Relevant related parts include ISO 15883-1 (general requirements, terms and tests — latest edition 2024), ISO 15883-2 (thermal disinfection for critical and semi‑critical devices — 2024 revision), ISO 15883-4 (chemical disinfection for thermolabile endoscopes), ISO 15883-6 and ISO 15883-7 (requirements for non‑critical devices, thermal and chemical disinfection — recent/revised parts published 2025–2026). Users should consult the applicable part(s) for load‑specific performance and validation requirements.

Keywords

washer‑disinfector, washer‑disinfectors, cleaning efficacy, test soils, validation, performance requirements, medical devices, reprocessing, cleaning test methods, ISO 15883.

FAQ

Q: What is this standard?

A: ISO 15883-5:2021 is the part of the ISO 15883 series that specifies performance requirements and test‑method criteria to demonstrate the cleaning efficacy of washer‑disinfectors and their accessories.

Q: What does it cover?

A: It covers standardized test soils and methods for applying, washing and assessing soils on representative loads, acceptance criteria (visual, microbiological and chemical detection where appropriate), and procedures used to demonstrate that a washer‑disinfector achieves adequate cleaning performance. It does not cover manufacturer activities for reusable medical devices themselves.

Q: Who typically uses it?

A: WD manufacturers, independent test laboratories, hospital sterile processing departments, infection prevention specialists, regulatory and procurement professionals use the standard for type testing, validation, purchase specifications and proof of cleaning performance.

Q: Is it current or superseded?

A: ISO 15883-5:2021 is the current published international standard (published July 2021) that revised and replaced the earlier technical specification ISO/TS 15883-5:2005. Users should reference the 2021 edition for up‑to‑date test methods and criteria.

Q: Is it part of a series?

A: Yes — it is Part 5 of the ISO 15883 series (washer‑disinfectors). Other parts cover general requirements (Part 1) and requirements for specific load types and disinfection methods (Parts 2, 3, 4, 6, 7, etc.); consult the relevant part for load‑ or method‑specific requirements.

Q: What are the key keywords?

A: Washer‑disinfector, cleaning efficacy, test soils, validation, performance criteria, reusable medical devices, reprocessing, ISO 15883.