PYREX 25mL Class A Certified and Serialized Volumetric Flask with Glass Stopper 5680-25

The PYREX 25mL Class A Certified and Serialized Volumetric Flask with Glass Standard Taper Stopper is precision laboratory glassware designed for accurate solution preparation, chemical dilution, and quantitative analysis. Each flask is individually serialized and calibrated to Class A tolerances, with a Certificate of Identification and Capacity traceable to NIST standards. It features a permanent graduation line, easy-to-read white markings, and a No. 9 hollow glass standard taper stopper. Ideal for analytical laboratories, pharmaceutical research, chemical testing, calibration laboratories, and quality control applications requiring reliable volumetric accuracy. Key Features - 25mL Capacity: Suitable for precise preparation of small-volume laboratory solutions. - Certified Class A Accuracy: Precision tolerance of ±0.03mL. - Individual Serialization: Unique identification number for traceability. - NIST-Traceable Certification: Certificate of Identification and Capacity accessible online. - ISO/IEC 17025 Calibration: Tested and calibrated in an ISO/IEC 17025-certified laboratory. - Glass Stopper: No. 9 hollow glass standard taper stopper. - Permanent Graduation: Sharp calibration line with easy-to-read white markings. - Long Neck Design: Supports precise filling and meniscus alignment. - Reusable Construction: Suitable for routine professional laboratory applications. Specification Details Brand PYREX Manufacturer Corning Product Code 5680-25 Product Type Certified Volumetric Flask Capacity 25mL Material Laboratory Glass Accuracy Class Certified and Serialized Class A Tolerance ±0.03mL Calibration Class A Volumetric Calibration Certification NIST-Traceable Certificate of Identification and Capacity Calibration Laboratory ISO/IEC 17025 Certified Graduation Permanent Single Calibration Line Markings White Block Lettering Stopper Type Hollow Glass Standard Taper Stopper Size No. 9 Neck Design Long Neck Base Flat Bottom Height Approximately 122mm Outer Diameter Approximately 40mm Quantity per Case 1 Piece Reusable Yes Applicable Standards ASTM E542 and ASTM E288 Applications Analytical Chemistry, Pharmaceutical Testing, Solution Preparation, Quality Control