Defines requirements for single-use, sterile, extracorporeal blood-gas exchangers intended for supply of oxygen to, and removal of carbon dioxide from, the blood of humans. Applicable to heat exchangers that are integral parts of blood-gas exchangers and to external equipment unique to the use of the device. Not applicable to liquid exchangers, separate heat exchangers, implanted blood-gas exchangers, extracorporeal circuits (blood-tubing), separate ancillary devices.