BLOOD SERUM, URINE AND FECAL CHEMICAL ANALYSIS, INSTRUMENTS, ACCESSORIES AND OPTIONS THESE DEVICES ARE USED TO DETERMINE SPECIFIC MULTIPLE CHEMICAL AND BIOCHEMICAL PARAMETERS OF HUMAN ACTIVE FLUID AND WASTE PRODUCTS. THEY MAY BE USED FOR THERAPEUTIC DRUG MONITORING AND ROUTINE SCREENING. THEY MAY BE OF THE MULTI-TEST, BATCH, RANDOM ACCESS, OR OTHER OPERATING MODE, AND MAY BE EXPANDABLE TO FURTHER TESTS AS THEY BECOME AVAILABLE. EXCLUDED FROM THIS CATEGORY ARE ELECTROLYTE ANALYZERS, BLOOD COAGULATION ANALYZERS AND TIMERS, AND SINGLE TEST ANALYZERS. ALSO EXCLUDED ARE BLOOD CELL ANALYZERS USED IN CLINICAL HEMATOLOGY TO IDENTIFY AND QUANTIFY HUMAN BLOOD CELL TYPES AND CLASSES. THIS CATEGORY EXCLUDES DEVICES TO TEST FOR EITHER CONSUMED ALCOHOL OR DRUGS OF ABUSE ON LOCATION, WHICH MAY BE FOUND ON FEDERAL SUPPLY SCHEDULE 65 VI.