scope:

This standard applies to the selection of a suitable cylinder valve outlet connection for medical gas mixtures for pressures up to 3000 psig (20 680 kPa) at 120 °F (48.9 °C).² It does not apply to industrial gas mixtures, cylinders manifolded in transport and use, or to mixtures at higher pressures. Connection assignments for single gases are included for clarity.

Purpose

The purpose of this standard is to establish a procedure for selecting the proper cylinder valve outlet connection for mixtures intended for medical use. It does not attempt to identify which combinations of two or more gases may be safely and successfully manufactured, since that is the responsibility of the manufacturer. Inclusion in this standard does not indicate that the mixture is either safe or effective for any medical procedure. It is the responsibility of the manufacturer, the medical community, and appropriate regulatory bodies to make those decisions. This standard also does not describe any means or technique for making mixtures.

² kPa shall indicate gauge pressure unless otherwise noted as (kPa, abs) for absolute pressure or (kPa, differential) for differential pressure. All kPa values are rounded off per CGA P-11, Metric Practice Guide for the Compressed Gas Industry [3]