Overview
EN ISO 10524-3:2019 (Pressure regulators for use with medical gases - Part 3) defines requirements for pressure regulators integrated with cylinder valves (VIPRs) used in the administration and support of medical gas therapy. Adopted by CEN as EN ISO 10524-3:2019, the standard covers design, type testing and marking for VIPRs mounted on refillable cylinders with working pressures up to 30 000 kPa (300 bar). Typical gases include oxygen, medical air, and oxygen/nitrous oxide mixtures, and VIPRs can be used for patient therapy or to drive surgical tools. VIPRs addressed by this standard are pressure pre-set and provide a pressure outlet and/or pre-set flow outlet(s).
Key Topics
- Scope & applicability: VIPRs on refillable cylinders for clinical, homecare and facility filling systems.
- Design requirements: safety, usability, materials, connections (inlet/outlet), filling port and integrated electronics where applicable.
- Outlet performance: limits and verification for pressure outlets and pre-set flow outlets.
- User controls & indicators: cylinder pressure/content indicators, flow selectors, legibility and torque requirements for fixed orifices.
- Safety features: main shut-off, residual pressure devices, pressure-relief devices, filtration and non-return valves.
- Mechanical & environmental resilience: leakage limits, mechanical strength, impact/drop tests and resistance to ignition.
- Durability & cleanliness: endurance tests, cleanliness and lubrication requirements to limit contamination.
- Type testing & test methods: procedures for outlet pressure, pressure-relief, leakage, mechanical strength and resistance to ignition.
- Marking & documentation: required markings to support traceability and safe use.
Applications
EN ISO 10524-3:2019 is essential for:
- Manufacturers of medical gas cylinder valves and integrated pressure regulators (VIPRs) designing products to meet international safety and performance expectations.
- Testing laboratories performing type testing and certification of VIPRs against ISO requirements.
- Medical device compliance teams ensuring product conformity for markets using EN adoption.
- Hospitals, clinics and homecare providers procuring cylinder-based gas systems for therapy, resuscitation and surgical tool operation.
- Cylinder filling facilities and service technicians responsible for safe filling and maintenance of refillable gas cylinders.
Related standards
- EN ISO 10524-3:2019 is part of the broader ISO 10524 series addressing pressure regulators for medical gases. It was prepared by ISO/TC 121 (Anaesthetic and respiratory equipment) and adopted by CEN. For system-level compliance, consult other parts of ISO 10524 and applicable national CEN/CENELEC guidance.
Keywords: EN ISO 10524-3:2019, pressure regulators, medical gases, VIPR, cylinder valves, medical gas regulators, ISO 10524-3, oxygen regulators.