Class A Burets

Photo of Corning 2130 PYREX® Class A Precision Bore Buret with Glass Standard Taper Stopcock

Precision bore tubing is used these Class A PYREX® burets to assure accuracy between any two points. Durable colored graduations are sharply defined and easy to read. Carefully ground Standard Taper stopcock gives precise control. All sizes furnished with a 2mm bore stopcock plug. For replacement PYREX® stopcocks, see No. 7680. For replacement retaining clips, see No. 7280. The capacity tolerance on these burets is established by ASTM E-287 and is calibrated in accordance with ASTM E542.

Photo of Corning 2103 PYREX® Class A Colored Scale Burets with PTFE Stopcock

The capacity tolerance on these Class A PYREX® burets is established by ASTM E-287 and is calibrated in accordance with ASTM E-542. Tips are carefully drawn from accurate bore tubing to insure proper drainage rates. This buret has colored markings, fine, sharp lines and large easy-to-read numbers. The 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 2mm bore Product Standard PTFE (Polytetrafluorethylene) stopcock plug.