1.1 This International Standard specifies requirements forlow-pressure hose assemblies intended for use with the followingmedical gases;
—oxygen;
—Nitrous oxide;
—air for breathing;
—helium;
—xenon
—specified mixtures of the gases listed above;
—air for driving surgical tools;
—nitrogen for driving surgical tools;
—nitric oxide/nitrogen mixtures;
—vacuum.
It is intended in particular to ensure gas-specificity and toprevent cross-connection between systems conveying differentgases.
These hose assemblies are intended to be used at pressure lessthan 1 400 kPa.
1.2 This International Standard specifies the allocation ofnon-interchangeable screw-threaded (NIST) connectors anddiameter-index safety system (DISS) connectors to medical gases andspecifies the dimentionsof non-interchangeable screw-threaded(NIST) connectors.
1.3 This International Standard does not specify:
—requirements for coaxial hoses used for the supply and disposal ofair for driving surgical tools;
—requirements for electrical conductivity.
1.4 This International Standard does not specify the intendeduses of hose assemblies.