21 CFR 862.3220 - Carbon monoxide test system.
(a) Identification. A carbon monoxide test system is a device intended to measure carbon monoxide or carboxyhemoglobin (carbon monoxide bound to the hemoglobin in the blood) in blood. Measurements obtained by this device are used in the diagnosis and treatment of or confirmation of carbon monoxide poisoning.
Title 21 published on 2014-04-01
no entries appear in the Federal Register after this date.