Other refractory ceramic goods (for example, retorts, crucibles, muffles, nozzles, plugs, supports, cupels, tubes, pipes, sheaths, rods and slide gates), other than those of siliceous fossil meals or of similar siliceous earths. - Containing by weight more than 50% of alumina (Al2O3) or of a mixture or compound of alumina and of silica (SiO2)

1. 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...

2. 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,...