Buret has colored markings, fine, sharp lines and large easy-to-read numbers Capacity tolerance on these burets is established by ASTM E-287 and they are calibrated in accordance with ASTM E-542 Tips are carefully drawn from accurate bore tubing to insure proper drainage rates Buret has colored markings, fine, sharp lines, and large easy-to-read numbers Stopcock barrel has a smooth micro-finish to assure leak-resistant performance Each buret is supplied with a dust cover All sizes are furnished with a 2 mm bore stopcock plug Sold as a Case of 1 Compliance Meet ASTM™ E 694, E 542, and E 287