| 842111 | 842111 - Centrifuges; cream separators |
| 842112 | 842112 - Centrifuges; clothes-dryers |
| 842119 | 842119 - Centrifuges; n.e.c. in heading no. 8421, including centrifuga |
| 842121 | 842121 - Machinery; for filtering or purifying water |
| 842122 | 842122 - Machinery; for filtering or purifying beverages other than wa |
| 842123 | 842123 - Machinery; filtering or purifying machinery, oil or petrol fi |
| 842129 | 842129 - Machinery; for filtering or purifying liquids, n.e.c. in item |
| 842131 | 842131 - Machinery; intake air filters for internal combustion engines |
| 842132 | 842132 - Machinery; catalytic converters or particulate filters, wheth |
| 842139 | 842139 - Machinery; for filtering or purifying gases, other than intak |
| 842191 | 842191 - Centrifuges; parts thereof, including parts for centrifugal d |
| 842199 | 842199 - Machinery; parts for filtering or purifying liquids or gases |