DIN EN ISO 5359:2008-11

This International Standard specifies requirements for low-pressure hose assemblies intended for use with the following medical gases: oxygen, nitrous oxide, medical air, helium, carbon dioxide, xenon, specified mixtures of the gases listed above, oxygen-enriched air, air for driving surgical tools, nitrogen for driving surgical tools, vacuum. It is intended in particular to ensure gas-specificity and to prevent cross-connection between systems conveying different gases. These hose assemblies are intended to be used at pressures less than 1400 kPa. This International Standard specifies the allocation of non-interchangeable screw-threaded (NIST) connectors and diameter-index safety system (DISS) connectors to medical gases and specifies the dimensions of non-interchangeable screw-threaded (NIST) connectors.