PYREX 2000mL Class A Lifetime Red Volumetric Flask with Glass Stopper 5660-2L

The PYREX 2000mL Class A Lifetime Red Volumetric Flask with Glass Standard Taper Stopper is precision laboratory glassware designed for accurate preparation of standard solutions, chemical dilutions, and quantitative analysis. Manufactured from durable laboratory glass, it features a permanently etched calibration line within a narrow red band for excellent visibility and lasting measurement accuracy. The flask is calibrated to contain 2000mL and includes a No. 27 hollow glass standard taper stopper. Its reinforced long neck and machine-blown body provide durability, making it suitable for analytical laboratories, pharmaceutical research, chemical testing, educational institutions, and quality control applications. Key Features - 2000mL Capacity: Suitable for preparing large-volume standard solutions. - Class A Accuracy: High-precision tolerance of ±0.50mL. - Lifetime Red Marking: Permanent etched calibration line for enhanced visibility. - Durable Glass Construction: Designed for repeated laboratory use. - Glass Stopper: No. 27 hollow glass standard taper stopper. - Reinforced Neck: Heavy-tubing neck improves mechanical strength. - To Contain Calibration: Designed for accurate volumetric solution preparation. - Flat Bottom Design: Provides stability on laboratory work surfaces. - Reusable Construction: Suitable for professional laboratory applications. Specification Details Brand PYREX Manufacturer Corning Product Code 5660-2L Product Type Volumetric Flask Capacity 2000mL (2L) Accuracy Class Class A Tolerance ±0.50mL Calibration To Contain (TC) Graduation Lifetime Red Etched Mark Stopper Type Hollow Glass Standard Taper Stopper Size No. 27 Neck Design Long Neck Body Construction Machine-Blown Glass Base Flat Bottom Height Approximately 390mm Outer Diameter Approximately 158mm Quantity per Pack 1 Piece Quantity per Case 4 Pieces Reusable Yes Applicable Standards ASTM E694, ASTM E542 and ASTM E288 Applications Analytical Chemistry, Solution Preparation, Laboratory Testing, Quality Control