ISO 15883-1:2024

Overview

ISO 15883-1:2024 - Washer-disinfectors - Part 1: General requirements, terms and definitions and tests defines the general performance, testing and validation framework for washer-disinfectors (WD) used to clean and disinfect reusable medical devices. The standard sets out requirements for cleaning and disinfection performance, accessories, instrumentation and methods for validation, routine monitoring and requalification. It applies across medical, dental, pharmaceutical and veterinary contexts (but not laundry, catering machines or sterilizers) and notes limitations regarding prion inactivation.

Key SEO terms: ISO 15883-1:2024, washer-disinfectors, WD, medical device reprocessing, validation, routine testing.

Key Topics

• Scope and terminology: common terms and definitions for washer-disinfector design, operation and testing.
• Performance requirements: criteria for cleaning, rinsing, drying and thermal or chemical disinfection to achieve reproducible results for reusable medical devices.
• Accessories and process chemicals: requirements for dosing systems, detergents and disinfectants and their role in achieving required outcomes.
• Mechanical and safety design: materials, construction, tanks, spray systems, doors/interlocks, load carriers, piping and ventilation.
• Instrumentation and controls: temperature, pressure, flow and timing devices; process verification and recording systems; microprocessor control and fault indication.
• Testing and conformity: validation methods, instrumentation for testing, routine and periodic tests, requalification after repairs, and guidance on implementing a routine test programme (Annex A).
• Water quality and drainage: requirements and tests for final rinse water, water volume per stage and drainage performance.
• Limitations: explicit note that the standard does not ensure prion removal/inactivation and that some chemicals can affect prion behavior.

Applications

ISO 15883-1:2024 is intended for:

• Manufacturers designing and certifying washer-disinfectors and WD accessories.
• Healthcare procurement teams to define purchase specifications and acceptance criteria.
• Sterile services departments, infection prevention teams and biomedical engineers responsible for validation, routine monitoring and requalification of installed WD.
• Regulatory bodies and conformity assessors evaluating compliance with performance and safety requirements. Practical uses include establishing validation protocols, selecting compatible cleaning chemistries, designing preventive maintenance and traceable process-recording workflows for medical device reprocessing.

Related Standards

• ISO 15883 series parts for specific loads: ISO 15883-2, -3, -4, -6, -7 - specify requirements for washer-disinfectors intended to process particular item types.
• Annex A of ISO 15883-1 provides guidance on routine testing programmes.

This standard is essential for ensuring reliable washer-disinfector performance, traceable validation and safe reprocessing of reusable medical devices in clinical and laboratory settings.