Medical instruments for drug abuse testing; Medical apparatus and instruments; Instruments for medical use in the treatment of samples before analysis; Instruments for use in medical analysis; Apparatus for carrying-out diagnostic tests for medical purposes; Diagnostic testing apparatus for use in immunoassay procedures (medical); In-vitro diagnostic testing apparatus for medical use; In-vitro diagnostic testing apparatus incorporating chemical reagents (for medical use); Medical apparatus for diagnostic testing of biological samples; Apparatus for analysing alcohol in body fluids (for medical use); Devices for medical use in sample identification