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, whether or not graduated or calibrated 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 per Kelvin within a temperature range of 0oC to 300oC 70 17 90 - Other