2420-25

Vee Gee 2420 Series Burets meet ASTM E-287 Class B Specifications. Feature durable, permanent markings: fine, sharp lines and large, easy-to-read numbers. Highly accurate and marked as calibrated EX - To Deliver at 20°C. The stopcocks are carefully ground and finished to assure a leak-free operation. These burets are ideal for use in school and institutional laoratories not requiring the accuracy of a Class A model. Made from sturdy borosilicate glass with a low coefficient of expansion (32x10^-7cm/cm/°C). Manufactured from accurate uniform wall tubing which offers optimum balance between thermal shock resistance (200°C / 392°F) and mechanical strength. Density (2.23 g/cm³). Annealing Point (560°C / 1040°F). Softening point (820°C / 1508°F).
VEE GEE Laboratory Glassware Catalog