PYREX 50mL Serialized Certified Class A Buret with PTFE Stopcock

The PYREX 2105-50 50mL Serialized Certified Class A Buret is precision volumetric glassware designed for accurate titration quantitative analysis and controlled liquid dispensing in laboratories requiring documented measurement traceability. The 50mL capacity with 0.1mL graduations and ±0.05mL Class A tolerance provides the precision required for analytical chemistry quality-control and standardized laboratory procedures. Each buret is individually serialized and has access to a Certificate of Identification and Capacity. Corning's serialized/certified PYREX burets provide capacity certification traceable to NIST standards and are tested and calibrated in an ISO/IEC 17025 certified laboratory. A permanently colored scale with fine graduation lines improves readability during titration. The 2mm straight-bore PTFE stopcock plug provides smooth controlled liquid delivery while avoiding the conventional lubrication required by ground-glass stopcocks. Key Features Genuine Corning PYREX® Exact catalog number 2105-50 50mL nominal capacity Serialized/Certified Class A Individually serialized Certificate of Identification and Capacity NIST-traceable capacity certification Tested and calibrated in an ISO/IEC 17025 certified laboratory 0.1mL graduation interval ±0.05mL tolerance Permanently colored scale Fine sharp graduation lines Large easy-to-read numbering 2mm straight-bore PTFE stopcock Smooth controlled dispensing Carefully formed dispensing tip Supplied with dust cover Replacement PTFE stopcock plug 7681-2 Specification Details Brand PYREX® Manufacturer Corning Catalog Number / MPN 2105-50 Product Type Serialized Certified Class A Buret Capacity 50mL Accuracy Class A Certification Serialized / Certified Graduation Interval 0.1mL Tolerance ±0.05mL Scale Colored Stopcock Material PTFE Stopcock Type Straight Bore Stopcock Bore 2mm Approx. Outside Diameter 14mm Approx. Height 755mm Serialization Individual Certificate Identification and Capacity Traceability NIST Calibration Laboratory ISO/IEC 17025 Certified Replacement PTFE Plug 7681-2 Supplied Accessory Dust Cover