PYREX 25mL Class A Lifetime Red Volumetric Flask with Glass Stopper 5660-25

The PYREX 25mL Class A Lifetime Red Volumetric Flask with Glass Standard Taper Stopper is precision laboratory glassware designed for accurate solution preparation, chemical dilution, and quantitative analysis. Manufactured from durable borosilicate glass, it features a permanent etched calibration line within a red band for excellent visibility and long-lasting accuracy. The flask includes a No. 9 standard taper hollow glass stopper and is calibrated to contain 25mL, making it ideal for analytical laboratories, pharmaceutical research, chemical testing, educational institutions, and quality control applications. Key Features - 25mL Capacity: Suitable for preparing precise standard solutions. - Class A Accuracy: High-precision tolerance of ±0.03mL. - Lifetime Red Marking: Permanent etched calibration line for excellent visibility. - Borosilicate Glass: Provides excellent chemical resistance and durability. - Glass Stopper: No. 9 standard taper hollow glass stopper. - Reinforced Neck: Heavy-tubing neck construction improves durability. - To Contain Calibration: Designed for accurate volumetric solution preparation. - Reusable Design: Suitable for routine professional laboratory applications. Specification Details Brand PYREX Manufacturer Corning Product Code 5660-25 Product Type Volumetric Flask Capacity 25mL Material Borosilicate Glass Accuracy Class Class A Tolerance ±0.03mL Calibration To Contain (TC) Graduation Lifetime Red Etched Mark 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 Pack 6 Pieces Quantity per Case 12 Pieces Reusable Yes Applicable Standards ASTM E694, E542 and E288 Applications Analytical Chemistry, Solution Preparation, Laboratory Testing