This standard BS EN ISO 23368:2022 Anaesthetic and respiratory equipment. Low-flow nasal cannulae for oxygen therapy is classified in these ICS categories:
11.040.10 Anaesthetic, respiratory and reanimation equipment
This document specifies requirements for low-flow nasal cannulae, used in both home care and hospital environments for the administration of oxygen therapy. This document does not include requirements to prevent the proliferation of fire within the tubing but does specify a user-detachable connection that can be used to fit a fire-activated oxygen shut-off device.