Section 13 ARTICLES OF STONE, PLASTER, CEMENT, ASBESTOS, MICA OR SIMILAR MATERIAL S; CERAMIC PRODUCTS; GLASS AND GLASSWARE 70 Glass and glassware 70 17 Laboratory, hygienic or pharmaceutical glassware, whether or not graduated or ca 70 17 20 70 17 20 00 Commodity Code Description 70 17 20 00 00 - Of other glass having a linear coefficient of expansion not exceeding 5 x 10-6 per Kel