6909 Ceramic ware for laboratory, chemical, other technical uses; ceramic troughs, tubs, similar receptacles used in agriculture; ceramic pots, jars and similar used in the conveyance or packing of goods

6909.11 Ceramic wares; for laboratory, chemical or other technical uses, of porcelain or china

• 6909.11.00.00 Of porcelain or china4%

6909.12 Ceramic wares; for laboratory, chemical or other technical uses, articles having a hardness equivalent to 9 or more on the Mohs scale

• 6909.12.00.00 Articles having a hardness equivalent to 9 or more on the mohs scale4%

6909.19 Ceramic wares; for laboratory, chemical or other technical uses, other than articles having a hardness equivalent to 9 or more on the Mohs scale or of porcelain or china

• 6909.19.00.20 Silicon nitride (si3n4) rollers or balls4%
• 6909.19.00.25 Ceramic proppants, containing aluminium oxide, silicon oxide and iron oxide4%
• 6909.19.00.30 Supports for catalysts, consisting of porous cordierite or mullite ceramic pieces, of an overall volume of not more than 65 l, having, per cm2 of the cross-section, not less than one continuous channel which may be open at both ends or stopped at one end4%
• 6909.19.00.40 Ceramic-carbon absorption or adsorption cartridges of fuel motor vehicle systems, with the following characteristics: -extruded fired ceramic bound multicellular cylindrical structure, -5 % or more by weight but not more than 70 % by weight of activated carbon, -30 % or more by weight but no more than 90 % by weight of ceramic binder, -with a diameter of 29 mm or more but no more than 41 mm, -a length of not more than 150 mm, -fired at temperature of 800 °c or more4%
• 6909.19.00.50 Ceramic articles made of continuous filaments of ceramic oxides, containing by weight: - 2 % or more of diboron trioxide, - 28 % or less of silicon dioxide and - 60 % or more of dialuminium trioxide4%
• 6909.19.00.60 Supports for catalysts, consisting of porous ceramic pieces, of a blend of silicon carbide and silicon, with a hardness of less than 9 on the mohs scale, with a total volume of not more than 65 litres, having, per cm2 of the surface of the cross section one or more closed channels at the tail end4%
• 6909.19.00.70 Supports for catalysts or filters, consisting of porous ceramics made primarily from oxides of aluminium and titanium; with a total volume of not more than 65 litres and at least one duct (open on one or both ends) per cm2 of cross section4%
• 6909.19.00.90 Other4%

6909.90 Ceramic wares; pots, jars and similar articles of a kind used for the conveyance or packing of goods and ceramic troughs, tubs and similar receptacles used in agriculture

• 6909.90.00.00 Other4%