Q.E.D Ethanol Control is intended to be used as a performance control in the determination of alcohol in saliva. Simply dip the swab into the ethanol control solution and place into the Q.E.D device. The results of the Q.E.D should match that of the ethanol control solution. Each package contains one product information sheet and two 5 mil vials of aqueous ethanol solution - with a pre-set range of known values for each vial A set of instructions is included in each carton
