ISO 5356-2:2012 specifies dimensional requirements for screw-threaded weight-bearing conical connectors intended for use with inhalation anaesthesia apparatus and ventilators. Such connectors are intended for mounting heavy accessories.

ISO 5356-2:2012 specifies requirements for the following screw-threaded, weight-bearing conical connectors:

• 22 mm connectors;
• 22/15 mm coaxial connectors.