| DKT — Free Radical Assay, Opiates | Class 2 / TX |
| DKW — Test Reagents For Sulphanimide Derivatives | Class 1 / TX |
| DKX — Thin Layer Chromatography, Barbiturate | Class 2 / TX |
| DKY — Indicator, Alumina Fluorescent, Tlc | Class 1 / TX |
| DKZ — Enzyme Immunoassay, Amphetamine | Class 2 / TX |
| DLA — Test Reagents For Methyl Alcohol | Class 2 / TX |
| DLB — Radioimmunoassay, Lsd (125-I) | Class 2 / TX |
| DLC — Atomizer, Tlc | Class 1 / TX |
| DLD — Thin Layer Chromatography, Codeine | Class 2 / TX |
| DLE — Reagents, Test, Bromides | Class 2 / TX |
| DLF — Enzyme Immunoassay, Ethosuximide | Class 2 / TX |
| DLG — Coating, Liquid, Glc | Class 1 / TX |
| DLH — Gas Chromatography, Alcohol | Class 2 / TX |
| DLI — Acetylcholine Chloride, Specific Reagent For Pseudo Cholinesterase | Class 1 / TX |
| DLJ — Calibrators, Drug Specific | Class 2 / TX |
| DLN — Hemagglutination, Cocaine Metabolites (Benzoylecgnonine) | Class 2 / TX |
| DLO — Indicator, Silica Gel Fluorescent, Tlc | Class 1 / TX |
| DLP — Radioimmunoassay, Diphenylhydantoin | Class 2 / TX |
| DLR — Hemagglutination Inhibition, Morphine | Class 2 / TX |
| DLS — Gas Chromatograph, Alcohol (Dedicated Instruments) | Class 2 / TX |
| DLT — Hemagglutination, Opiates | Class 2 / TX |
| DLX — Hemagglutination Inhibition, Barbiturate | Class 2 / TX |
| DLY — Plate, Alumina, Tlc | Class 1 / TX |
| DLZ — Enzyme Immunoassay, Phenobarbital | Class 2 / TX |
| DMB — Gas Chromatography, Methadone | Class 2 / TX |
| DMF — Gas Liquid Chromatography, Barbiturate | Class 2 / TX |
| DMG — Papers, Ion | Class 1 / TX |
| DMI — Potassium Dichromate Specific Reagent For Alcohol | Class 2 / TX |
| DMJ — Test Reagents For Ethyl Alcohol | Class 2 / TX |
| DMK — Lead, Protoporphyrin, Fluorometric | Class 2 / TX |
| DML — Nad-Nadh, Specific Reagent For Alcohol Enzyme Method | Class 2 / TX |
| DMN — Thin Layer Chromatography, Cocaine | Class 2 / TX |
| DMP — Digoxin Control Serum, Ria | Class 1 / TX |
| DMQ — Gas Chromatography, Primidone | Class 2 / TX |
| DMR — Solution, M-Nitrophenol, Specific Reagent For Cholinesterase | Class 1 / TX |
| DMS — Gases, Glc | Class 1 / TX |
| DMT — Enzymatic Method, Alcohol Dehydrogenase, Ultraviolet | Class 2 / TX |
| DMX — Liquid Chromatography, Salicylate | Class 2 / TX |
| DMY — Gas Chromatography, Morphine | Class 2 / TX |
| DMZ — Liquid Chromatography, Adsorbent | Class 1 / TX |
| DNA — Radioimmunoassay, Morphine-Barbiturate (125-I), Goat Antibody | Class 2 / TX |
| DNC — Strip, Paper, Salicylate | Class 2 / TX |
| DND — Radioimmunoassay, Digitoxin (125-I), Rabbit Antibody, Solid Phase Sep. | Class 2 / TX |
| DNE — Atomic Absorption, Antimony | Class 1 / TX |
| DNF — Liquid Chromatography, Ethosuximide | Class 2 / TX |
| DNG — Free Radical, Benzoylecgnonine | Class 2 / TX |
| DNH — Resins, Ion-Exchange, Liquid Chromatography | Class 1 / TX |
| DNI — Liquid Chromatography, Amphetamine | Class 2 / TX |
| DNJ — Radioimmunoassay, Digoxin (125-I), Goat Antibody, 2nd Antibody Sep. | Class 2 / TX |
| DNK — Thin Layer Chromatography, Morphine | Class 2 / TX |