| 071.33 | Acorns, edible, roasted as a coffee substitute | |
| 663.53 | Acoustic mineral materials (excl. asbestos), and articles thereof | |
| 516.21 | Acraldehyde | |
| 515.77 | Acridine and its derivatives (excl. dyes) | |
| 516.21 | Acrolein | |
| 516.21 | Acrylaldehyde | |
| 513.79 | Acrylic acid and its salts and esters | |
| 575.29 | Acrylic polymers in liquid or paste form (incl. emulsions, dispersions and solutions in which the solvent does not exceed 50% by weight of the solution) | |
| 575.29 | Acrylo-methacrylic copolymers in liquid or paste form (incl. emulsions, dispersions and solutions in which the solvent does not exceed 50% by weight of the solution) | |
| 514.83 | Acrylonitrile (excl. acrylonitrile polymers and copolymers) | |
| 575.29 | Acrylonitrile polymers, in primary forms | |
| 541.52 | ACTH (hormone), not put up as medicaments | |
| 525.19 | Actinium 228 (mesothorium II) | |
| 525.19 | Actinium and its isotopes | |
| 874.13 | Actinometers (excl. those consisting simply of two special thermometers combined) | |
| 874.55 | Actinometers, consisting simply of two special thermometers combined | |
| 541.32 | Actinomycetin, not put up as medicaments | |
| 541.32 | Actinomycins, not put up as medicaments | |
| 774.12 | Actinotherapy apparatus | |
| 898.9 | Actions, piano | |
| 514.51 | Acyclic monoamines and their salts | |
| 514.52 | Acyclic polyamines and their salts | |
| 512.19 | Acyclic terpene alcohols | |
| 554.21 | Acyl aminopolyglycol ethers of alkylene oxide condensates | |
| 752.9 | Adaptors, channel-to-channel, for connecting two digital computer systems | |
| 665.91 | Adaptors, glass, for laboratory use | |
| 874.22 | Adding and subtracting devices, pocket-type, operated with a stylus | |
| 751.22 | Adding machines | |
| 597.25 | Additives, extreme pressure (EP), for lubricating oils | |
| 598.97 | Additives, prepared, for cements, mortars or concretes | |
| 597.29 | Additives, prepared, for other liquids used for the same purposes as mineral oils | |
| 751.92 | Addressing machines for envelopes, invoices, etc., for office use | |
| 759.93 | Address-plates, metal, whether or not embossed, for use in addressing machines | |
| 699.54 | Address-plates, of base metal, for houses, letter-boxes, doors, vehicles, dog collars | |
| 292.22 | Aden gum | |
| 515.76 | Adenine | |
| 515.79 | Adenosine pyro-phosphoric acid | |
| 515.79 | Adenosine tri-phosphoric acid | |
| 541.13 | Adermin, not put up as medicaments | |
| 542.92 | Adermin, put up as medicaments in measured doses or in forms or packings for retail sale | |