| 34140 | Octanoic acid and its salts and esters | |
| 34130 | Octanol | |
| 48211 | Octants | |
| 34160 | Octaverine (INN) | |
| 34110 | Octenes, not less than 95% pure | |
| 34140 | n-Octoic (caprylic) acids and their salts and esters | |
| 21250 | Octopus, frozen, dried, salted or in brine | |
| 04230 | Octopus, live, fresh or chilled | |
| 21260 | Octopus, prepared or preserved, not simply frozen, dried, salted or in brine | |
| 34130 | Octyl alcohol | |
| 34140 | Octyl benzoate | |
| 34130 | Octylphenols and their isomers | |
| 35331 | Odoriferous preparations used during religious rites | |
| 35410 | Odoriferous substances (natural or synthetic) in alcoholic solutions, of a kind used in industry (excl. the food and drink industries) | |
| 35410 | Odoriferous substances (natural or synthetic) in alcoholic solutions, of a kind used in the food or drink industries | |
| 35410 | Odoriferous substances used in manufacture of beverages whether or not containing alcohol | |
| 34170 | Oenanthol | |
| 34320 | Oenin | |
| 48150 | Oesophagoscopes | |
| 35250 | Oestradiol, not put up as medicaments | |
| 35250 | Oestrin, not put up as medicaments | |
| 35250 | Oestriol-17-β, not put up as medicaments | |
| 35250 | Oestrogens, not put up as medicaments | |
| 35260 | Oestrogens, put up as medicaments, containing neither antibiotics nor derivatives thereof, in measured doses or in forms or packings for retail sale | |
| 35250 | Oestrone, not put up as medicaments | |
| 21132 | Offal (excl. liver) of bovine animals (excl. dried, salted, in brine or smoked), put up in airtight packings | |
| 21132 | Offal (excl. liver) of poultry, cooked | |
| 21132 | Offal (excl. liver), of bovine animals, cooked | |
| 21132 | Offal (excl. liver), of swine (excl. dried, salted, in brine or smoked), put up in airtight packings | |
| 21132 | Offal (excl. liver), of swine, cooked | |
| 21129 | Offal, edible, fresh, chilled or frozen, of animals of subclass 02129 (excl. that of frogs, rabbits and hares) | |
| 21131 | Offal, edible, of bovine animals, salted, in brine, dried or smoked | |
| 21131 | Offal, edible, of swine, salted, in brine, chilled or smoked | |
| 39110 | Offal, meat, unsuitable or unfit for human consumption and not for organotherapeutic use | |
| 21121 | Offal, of domestic poultry (excl. fatty livers of geese or ducks), fresh or chilled | |
| 21122 | Offal, of domestic poultry (excl. liver), frozen | |
| 21129 | Offal, of hares, fresh, chilled or frozen | |
| 21132 | Offal, of meat (excl. liver), not dried, salted, in brine or smoked, put up in airtight packings | |
| 21129 | Offal, of rabbits, fresh, chilled or frozen | |
| 72222 | Office buildings and associated land, sales of, on a fee or contract basis | |