This International Standard specifies basic requirements for breathing tubes used with anaesthetic apparatus and some ventilators, and applies also to those breathing tubes which may have other components integrally attached.
Provision is made for breathing tubes having plain ends (either cylindrical or tapered) or ends incorporating conical fittings.
Breathing tubes for special purposes, such as those used with some ventilators, double lumen tubes and paediatric breathing systems, are excluded from the scope of this International Standard.