WCO Explanatory Notes reproduced for reference. © World Customs Organization. Verify against official WCO publication.
70.11 - Glass envelopes (including bulbs and tubes), open, and glass parts thereof, without fittings, for electric lamps, cathode-ray tubes or the like. 701 1.10 - For electric lighting 7011.20 - For cathode-ray tubes 701 1.90 - Other This heading covers : (A) All open glass envelopes (including bulbs and tubes) of any shape or size, without fittings, for the manufacture of electric lamps, valves and tubes, whether these are for illuminating or other purposes (incandescent or vapour discharge lamps, X-ray tubes, radio valves, cathode-ray tubes, rectifier valves or other electronic tubes or valves, infra-red lamps, etc.). Most of these envelo es are mass-produced by automatic machines; they may be frosted, coloured, opal, metal ised, coated with fluorescent material, etc. P Glass parts of envelo es (such as face-plates or cones of cathode-ray tubes for television receivers, spotlight buPb reflectors) remain in th3s heading. (B) Tubes with narrowed ends clearly intended for electric lamps, or bent into sbape for advertising signs. (C) Tubes lined with a fluorescent substance (e.g., zinc silicate, cadmium borate, calcium tungstate). By means of a l~eriesof operations (including, insertion of filaments or electrodes, exhaustion of the envelo e, introduction of one or more rare gases, of mercury, etc., fitting of ca s or connectorsf these envelopes are made into electnc lamps, cathode-ray tubes or the li e of Chapter 85. f: All the above-mentioned articles may be of ordinary glass, crystal glass or fused quartz. The heading does not include : (a) Glass tubes merely cut to len , whether or not the ends have been fire olished or otherwise smoothed, or tubes which h a v e e d fluorescent materials (e.g., sodium uranatef added to the glass in the mass (heading 70.02). (b) Glass bulbs, tubes and envelopes, closed or with fittings, and finished bulbs, tubes and valves (see headings 85.39,85.40,90.22, etc.).
1.- This Chapter does not cover : (a) Goods of heading 32.07 (for example, vitrifiable enamels and glazes, glass frit, other glass in the form of powder, granules or flakes); (b) Articles of Chapter 71 (for example, imitation jewellery); (c) Optical fibre cables of heading 85.44, electrical insulators (heading 85.46) or fittings of insulating material of heading 85.47; (d) Front windscreens (windshields), rear windows and other windows, framed, for vehicles of Chapters 86 to 88; (e) Front windscreens (windshields), rear windows and other windows, whether or not framed, incorporating heating devices or other electrical or electronic devices, for vehicles of Chapters 86 to 88; (f) Optical fibres, optically worked optical elements, hypodermic syringes, artificial eyes, thermometers, barometers, hydrometers or other articles of Chapter 90; (g) Luminaires and lighting fittings, illuminated signs, illuminated name-plates or the like, having a permanently fixed light source, or parts thereof of heading 94.05; (h) Toys, games, sports requisites, Christmas tree ornaments or other articles of Chapter 95 (excluding glass eyes without mechanisms for dolls or for other articles of Chapter 95); or (ij) Buttons, fitted vacuum flasks, scent or similar sprays or other articles of Chapter 96. 2.- For the purposes of headings 70.03, 70.04 and 70.05 : (a) glass is not regarded as “worked” by reason of any process it has undergone before annealing; (b) cutting to shape does not affect the classification of glass in sheets; (c) the expression “absorbent, reflecting or non-reflecting layer” means a microscopically thin coating of metal or of a chemical compound (for example, metal oxide) which absorbs, for example, infra- red light or improves the reflecting qualities of the glass while still allowing it to retain a degree of transparency or translucency; or which prevents light from being reflected on the surface of the glass. 3.- The products referred to in heading 70.06 remain classified in that heading whether or not they have the character of articles. 4.- For the purposes of heading 70.19, the expression “glass wool” means : (a) Mineral wools with a silica (SiO ) content not less than 60 % by weight; 2 (b) Mineral wools with a silica (SiO ) content less than 60 % but with an alkaline oxide (K O or Na O) 2 2 2 content exceeding 5 % by weight or a boric oxide (BO ) content exceeding 2 % by weight. 2 3 Mineral wools which do not comply with the above specifications fall in heading 68.06. 5.- Throughout the Nomenclature, the expression “glass” includes fused quartz and other fused silica. Subheading Note. 1.- For the purposes of subheadings 7013.22, 7013.33, 7013.41 and 7013.91, the expression “lead crystal” means only glass having a minimum lead monoxide (PbO) content by weight of 24 %.