NFPA 99 2015 Health Care Facilities Code
CGA C-9 Standard Color Marking of Compressed Gas Containers for Medical Use.
All medical gas piping, valves and manifolds should have permanent labels bearing the name or chemical symbol of the gas/vacuum system they carry or control. Also where positive pressure gas pipe systems operate, the label should include the operating pressure in addition to the name of the gas/vacuum system. Brimar medical gas markers are color coded as per NFPA 99 2015 Table 5.1.11.
Medical Gas Markers should be located as follows:
- At intervals of not more than 20 feet / 6.1 m apart
- At least once in or above every room
- On both sides of walls or partitions penetrated by the piping.
- At least once in every story height traversed by risers.