WCO Explanatory Notes reproduced for reference. © World Customs Organization. Verify against official WCO publication.
69.02 - Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods, other than those of siliceous fossil meals or similar sihceous earths (+). 6902.10 - Containing by weight, sin ly or together, more than 50 % of the elements 6902.20 - Containing by weight more than 50 % of alumina (A1203),of silica (SiOz)or 6902.90 - Other B Mg, Ca or Cr, or expresse as MgO, CaO or Cr203 of a mixture or compound of these products This heading covers a group of refractory roducts (other than those of headin 69.01 normally used in the construction of ovens, h s, furnaces or other plant for the meta6uTgical chemical, ceramic, glass and other industries. I I It includes, inter alia : (1) Bricks of all shapes arallelepiped, wedge shaped, cylindrical, semi-cylindrical, etc.), including keystones an other specially shaped bncks e.g., runner bricks, concave on one face and rectilinear on the others) even if they are clear y reco isable as being of the kind specially designed for the consbxction of plant or machinery o Section XVI. 's r . (2) Refractory blocks and tiles for flooring, walls, hearths, etc. The heading excludes tubing, piping (including runways in the form of half-cylinders) and angles, bends and similar tube or pipe fittings of refractory materials (heading 69.03).
1.- This Chapter applies only to ceramic products which have been fired after shaping : (a) Headings 69.04 to 69.14 apply only to such products other than those classifiable in headings 69.01 to 69.03; (b) Articles heated to temperatures less than 800 °C for purposes such as curing of resins, accelerating hydration reactions, or for the removal of water or other volatile components, are not considered to be fired. Such articles are excluded from Chapter 69; and (c) Ceramic articles are obtained by firing inorganic, non-metallic materials which have been prepared and shaped previously at, in general, room temperature. Raw materials comprise, inter alia, clays, siliceous materials including fused silica, materials with a high melting point, such as oxides, carbides, nitrides, graphite or other carbon, and in some cases binders such as refractory clays or phosphates. 2.- This Chapter does not cover : (a) Products of heading 28.44; (b) Articles of heading 68.04; (c) Articles of Chapter 71 (for example, imitation jewellery); (d) Cermets of heading 81.13; (e) Articles of Chapter 82; (f) Electrical insulators (heading 85.46) or fittings of insulating material of heading 85.47; (g) Artificial teeth (heading 90.21); (h) Articles of Chapter 91 (for example, clocks and clock cases); (ij) Articles of Chapter 94 (for example, furniture, luminaires and lighting fittings, prefabricated buildings); (k) Articles of Chapter 95 (for example, toys, games and sports requisites); (l) Articles of heading 96.06 (for example, buttons) or of heading 96.14 (for example, smoking pipes); or (m) Articles of Chapter 97 (for example, works of art).