SIST EN ISO 9170-2:2008 PDF

Overview

EN ISO 9170-2:2008 - Terminal units for medical gas pipeline systems - Part 2: Terminal units for anaesthetic gas scavenging systems (ISO 9170-2:2008) is a CEN-endorsed international standard that defines requirements and dimensions for terminal units used in anaesthetic gas scavenging systems (AGSS) in accordance with ISO 7396-2. The standard covers design, materials, testing, marking and information supplied for terminal units and their mating probes (type-specific connection counterparts). It distinguishes two terminal‑unit types based on whether the power (vacuum or disposal) device is upstream or downstream of the terminal unit.

Key topics and requirements

• Scope and compatibility
  • Applies to terminal units for anaesthetic gas scavenging disposal systems only (not compressed gases or vacuum covered by ISO 9170-1).
  • Specifies dimensions and type specificity to prevent incorrect connections.
• Design and materials
  • Requirements for materials, construction and cleanliness to suit medical environments and patient safety.
  • Design features to ensure reliable mating with probes and hose inserts.
• Testing and performance
  • Prescribes test methods such as endurance, pressure‑drop, connection/disconnection forces, leakage, mechanical strength, and durability of markings and colour coding.
  • Requires verification of effective connection of probes and hoses.
• Identification and documentation
  • Marking, colour coding, packaging and manufacturer-supplied information for safe installation, maintenance and testing.
  • Information necessary to support testing in accordance with ISO 7396-2 prior to use.
• Ancillary content
  • Includes informative annexes covering rationale, environmental aspects, and special national/regional electrical installation conditions.

Practical applications and users

• Manufacturers of terminal units and mating probes use this standard to design and certify components for AGSS.
• Hospital biomedical engineers, clinical engineers and installers use it to select, install and commission AGSS terminal units safely and in compliance with ISO 7396-2.
• Regulatory, quality and procurement professionals use the standard to evaluate conformity, labelling and documentation for medical gas disposal connections.
• Designers of anaesthetic equipment and operating-room infrastructure rely on its dimensional and type‑specific requirements to avoid hazardous misconnection.

Related standards

• ISO 9170-1 - Terminal units for compressed medical gases and vacuum
• ISO 7396-2 - Medical gas pipeline systems - Pipeline systems for anaesthetic gas scavenging (defines operating pressures and system-level testing)
• EN 737-4:1998 (superseded)
• EU Directive 93/42/EEC (medical device conformity references)

Keywords: EN ISO 9170-2:2008, terminal units, anaesthetic gas scavenging systems, AGSS, medical gas pipeline systems, probe, type specificity, ISO 7396-2.