8421 Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus for liquids or gases

8421.11 Centrifuges; cream separators

• 8421.11.00.00 Cream separatorsFree

8421.12 Centrifuges; clothes-dryers

• 8421.12.00.00 Clothes dryersFree

8421.19 Centrifuges; n.e.c. in heading no. 8421, including centrifugal dryers (but not clothes-dryers)

• 8421.19.20.00 Centrifuges of a kind used in laboratoriesFree
• 8421.19.70.00 OtherFree

8421.21 Machinery; for filtering or purifying water

• 8421.21.00.10 For use in civil aircraftFree
• 8421.21.00.90 OtherFree

8421.22 Machinery; for filtering or purifying beverages other than water

• 8421.22.00.00 For filtering or purifying beverages other than waterFree

8421.23 Machinery; filtering or purifying machinery, oil or petrol filters for internal combustion engines

• 8421.23.00.10 For use in civil aircraftFree
• 8421.23.00.90 OtherFree

8421.29 Machinery; for filtering or purifying liquids, n.e.c. in item no. 8421.2

• 8421.29.20.00 Made of fluoropolymers and with filter or purifier membrane thickness not exceeding 140 micronsFree
• Other
• 8421.29.80.10 For use in civil aircraftFree
• 8421.29.80.90 OtherFree

8421.31 Machinery; intake air filters for internal combustion engines

• 8421.31.00.10 For use in civil aircraftFree
• 8421.31.00.90 OtherFree

8421.32 Machinery; catalytic converters or particulate filters, whether or not combined, for purifying or filtering exhaust gases from internal combustion engines

• 8421.32.00.10 For use in civil aircraftFree
• 8421.32.00.90 OtherFree

8421.39 Machinery; for filtering or purifying gases, other than intake air filters, catalytic converters or particulate filters for internal combustion engines

• 8421.39.15.00 With stainless steel housing, and with inlet and outlet tube bores with inside diameters not exceeding 1,3 cmFree
• Other
• Machinery and apparatus for filtering or purifying air
• 8421.39.25.10 For use in civil aircraftFree
• 8421.39.25.90 OtherFree
• Machinery and apparatus for filtering or purifying other gases
• By a catalytic process
• 8421.39.35.10 For use in civil aircraftFree
• 8421.39.35.90 OtherFree
• Other
• 8421.39.85.10 For use in civil aircraftFree
• 8421.39.85.90 OtherFree

8421.91 Centrifuges; parts thereof, including parts for centrifugal dryers

• 8421.91.00.00 Of centrifuges, including centrifugal dryersFree

8421.99 Machinery; parts for filtering or purifying liquids or gases

• 8421.99.10.00 Parts of machinery and apparatus of subheadings 8421 29 20 or 8421 39 15Free
• Other
• 8421.99.90.10 Of filtering or purification machinery and apparatus for liquids or gases, for use in certain types of aircraftsFree
• 8421.99.90.92 Parts of equipment for the purification of water by reverse osmosis, consisting essentially of plastic-based membranes, supported internally by woven or non-woven textile materials which are wound round a perforated tube, and enclosed in a cylindrical plastic casing of a wall-thickness of not more than 4 mm, whether or not housed in a cylinder of a wall-thickness of 5 mm or moreFree
• 8421.99.90.99 OtherFree