IEC 61010-2-040:2020

Overview

IEC 61010-2-040:2020 is the Part 2 specification of the IEC 61010 series that sets safety requirements for electrical equipment used to sterilize, wash and disinfect medical materials. This third edition (2020) supersedes the 2015 edition and is aligned with IEC 61010-1 (3rd ed.) and Amendment 1 (2016). It applies to sterilizers and washer-disinfectors used in medical, veterinary, pharmaceutical and laboratory settings and covers devices using steam, hot water, toxic gases/aerosols/vapours, hot air or inert gas, as well as washer-disinfectors.

Key topics and technical requirements

• Scope and exclusions: Defines included equipment (steam, gas, hot-air sterilizers, washer-disinfectors) and excludes certain items (equipment for hazardous atmospheres covered by IEC 60079, general laundry/dishwasher appliances, and non-sterilization heating equipment).
• Safety structure: Supplements and modifies IEC 61010-1 clauses where specific hazards for sterilizers/washer-disinfectors are present.
• Risk and testing requirements: Detailed clauses on tests, RISK assessment, and conformity verification (see Clause 4 and Clause 17).
• Electrical safety: Protection against electric shock and requirements for components and subassemblies (Clauses 6 and 14).
• Mechanical and pressure safety: Protection against mechanical hazards, shock/impact resistance, and specific treatment of PRESSURE VESSEL assemblies (Clauses 7–9, Annex G addresses leakage and rupture from fluids under pressure).
• Fluid, gas and biological hazards: Controls for liberated gases, toxic vapours, pathogenic substances, explosion/implosion risks (Clause 13).
• Interlocks, marking and documentation: Specific requirements for interlocks, user documentation, and markings to ensure safe operation (Clause 15 and Clause 5).
• Notable technical change: Added tolerance for stability of a.c. voltage test equipment (clause 6.8.3.1) and removal of Group Safety Publication status without changing technical requirements.

Practical applications - who uses this standard

• Manufacturers of sterilizers and washer-disinfectors to design, test and document equipment that meets international safety expectations.
• Test laboratories and certification bodies performing conformity assessment against IEC 61010 series requirements.
• Healthcare and laboratory procurement teams evaluating safety and compliance of sterilization equipment.
• Regulatory authorities and safety engineers referencing harmonized requirements for product approval and incident investigations.

Related standards (useful references)

• IEC 61010-1 (general safety requirements for measurement/control/laboratory equipment)
• IEC 60079 (equipment for hazardous atmospheres) - for excluded scope items
• IEC 61770 (avoidance of backsiphonage)
• IEC 62471 and IEC TR 62471-2 (photobiological safety of lamps)
• ISO 3585, ISO 4126-1/2 (pressure safety devices)
• Appliance standards referenced for exclusions: IEC 60335-2-4/5/7/11/58, ISO 10472

Keywords: IEC 61010-2-040, sterilizers, washer-disinfectors, medical sterilization safety, pressure vessel, electrical safety standard, IEC 61010 series.