Section 13 ARTICLES OF STONE, PLASTER,CEMENT,ASBESTOS, MICA OR SIMILAR MATERIALS; CERAMIC PRODUCTS; GLASS AND GLASSWARE 70 Glass and Glassware. 70 17 LABORATORY, HYGIENIC OR PHARMACEUTICAL GLASSWARE Commodity Code Description 70 17 10 Of fused quartz or other fused silica 70 17 20 Of other glass having a linear coefficient of expansion not exceeding 5 x 10-6 p 70 17 90 Other