EN 737-1:1998

1.1 This Part of this European Standard specifies requirements for terminal units intended for use in medical gas pipeline systems specified in prEN 737-3 for use with the following medical gases: - oxygen; - nitrous oxide; - air for breathing; - carbon dioxide; - oxygen/nitrous oxide mixture (50/50 % (V/V)) - air for driving surgical tools; - nitrogen for driving surgical tools - vacuum. It is intended especially to ensure the gas-specific assembly of terminal units and to prevent their interchange between different gases. 1.2 This Part of this European Standard also specifies requirements for: - terminal units for the supply and disposal of air for driving surgical tools; - probes intended to be connected to the gas-specific connection point which is part of a terminal unit; 1.3 This Part of this European Standard does not specify: - the dimensions of probes and of the gas-specific connection points of the terminal unit (see prEN 737-6); - the dimensions of NIST connectors (see EN 739); - requirements for terminal units for anaesthetic gas scavenging systems (see EN 737-4)