ISO 7396-2:2007

Overview

ISO 7396-2:2007 - "Medical gas pipeline systems ­- Part 2: Anaesthetic gas scavenging disposal systems" specifies safety and performance requirements for anaesthetic gas scavenging systems (AGSS) used in healthcare facilities. The standard covers design, installation, function, performance, documentation, testing and commissioning of disposal systems to reduce occupational exposure to anaesthetic gases and vapours and to protect patient safety. ISO 7396-2:2007 applies when AGSS terminal units conform to ISO 9170-2 and receiving systems conform to ISO 8835-3, and also addresses extensions, modifications and power device replacement.

Key topics and requirements

• System scope and safety objectives: Prevent cross‑connections with medical gas and vacuum pipelines; ensure continuity of operation and patient safety.
• Power device requirements: Specifications and guidance for fans, blowers or vacuum pumps that drive disposal systems (performance, redundancy, continuity).
• Pipeline components: Requirements for pipelines, connecting assemblies, disposal hoses and non‑interchangeable type‑specific connections to avoid misconnection.
• Performance and testing: Flow and pressure characteristics, test methods, backflow prevention and commissioning tests to verify functional performance.
• Terminal units and interfaces: Definitions for AGSS type 1 (high/low flow) and type 2 terminal units and their type‑specific connection points.
• Marking and colour coding: Labelling, durable marking and colour standards to aid identification and safe operation.
• Documentation and certification: "As‑installed" drawings, electrical diagrams, operational management info, certification procedures and records.
• Annexes: Informative guidance including power device guidelines, commissioning procedures, test forms, risk management checklist and rationale.

Applications and users

ISO 7396-2:2007 is used by:

• Biomedical engineers and maintenance teams for safe installation, testing and servicing of AGSS and medical gas pipeline systems.
• Hospital planners and facility designers specifying disposal system capacity, diversity factors and terminal unit types.
• Manufacturers of AGSS equipment and terminal units ensuring compatibility with ISO 9170-2 and ISO 8835-3.
• Commissioning agents and conformity assessors performing acceptance testing, certification and change control for AGSS extensions or modifications.
• Health and safety officers implementing controls to minimize occupational exposure to anaesthetic gases.

Related standards

• ISO 7396-1: Pipeline systems for compressed medical gases and vacuum
• ISO 8835-3: Transfer and receiving systems for active AGSS
• ISO 9170-2: Terminal units for anaesthetic gas scavenging systems
• ISO 14971: Risk management for medical devices
• ISO 15001, EN 1041, EN 13348 (compatibility, information and materials for medical gas systems)

Keywords: ISO 7396-2:2007, anaesthetic gas scavenging, AGSS, medical gas pipeline systems, commissioning, testing, terminal units, cross‑connection prevention.