PYREX 25mL Class A Buret with PTFE Stopcock

The PYREX 2103-25 25mL Class A Buret is precision volumetric laboratory glassware designed for accurate liquid measurement and controlled dispensing during titration and quantitative analytical procedures. It features a permanently colored scale with fine sharp graduation lines and large easy-to-read numbers. Corning states that the buret's Class A capacity tolerance is established according to ASTM E-287, while calibration is performed in accordance with ASTM E-542. The buret incorporates a 2mm straight-bore PTFE stopcock plug for smooth controlled flow. The stopcock barrel has a micro-finished surface designed for precise fit and leak-resistant performance. Each buret is also supplied with a dust cover. Key Features Genuine Corning PYREX® Exact product number 2103-25 25mL nominal capacity Class A accuracy Fine 0.1mL graduations High accuracy with ±0.03mL tolerance Permanently colored scale Fine sharp graduation lines Large easy-to-read numbering 2mm straight-bore PTFE stopcock Micro-finished stopcock barrel Carefully drawn dispensing tip Supplied with dust cover Replacement PTFE stopcock plug: 7681-2 ASTM E-287 capacity tolerance ASTM E-542 calibration 1/Pack and 1/Case Specification Details Brand PYREX® Manufacturer Corning Catalog Number / MPN 2103-25 Product Type Class A Buret Capacity 25mL Accuracy Class Class A Scale Colored Graduation Interval 0.1mL Tolerance ±0.03mL Stopcock Material PTFE Stopcock Style Straight Bore Stopcock Bore 2mm Approx. Height 560mm Approx. Outside Diameter 12mm Calibration ASTM E-542 Capacity Tolerance ASTM E-287 Replacement Stopcock Plug 7681-2 Supplied Accessory Dust Cover Quantity/Pack 1 Quantity/Case 1