PYREX 1000mL Class A Mixing Volumetric Flask with Glass Standard Taper Stopper 5820-1L

The PYREX 1000mL Class A Mixing Volumetric Flask with Glass Standard Taper Stopper is precision laboratory glassware designed for accurate solution preparation, chemical dilution, and efficient mixing of liquids and powders. Featuring a specially designed upper mixing bulb between the stopper and calibration line, the flask improves mixing efficiency during shaking. Its durable machine-blown glass body, reinforced neck, and Class A volumetric accuracy make it ideal for analytical chemistry, pharmaceutical research, laboratory testing, reagent preparation, and quality control applications. Key Features - 1000mL Capacity: Suitable for accurate preparation of large-volume laboratory solutions. - Class A Accuracy: Precision volumetric tolerance of ±0.30mL. - Special Mixing Bulb: Upper bulb facilitates thorough mixing of liquids and powders when shaken. - Mixing Bulb Capacity: Approximately 100mL, equivalent to one-tenth of the rated flask capacity. - Glass Standard Taper Stopper: No. 22 hollow glass stopper for secure closure. - Durable Glass Construction: Machine-blown body with heavy-tubing neck for improved strength. - Precision Calibration: Calibrated to contain the specified solution volume. - Flat Bottom: Provides stability on laboratory work surfaces. - Reusable Design: Suitable for repeated professional laboratory applications. Specification Details Brand PYREX Manufacturer Corning Product Code 5820-1L Product Type Mixing Volumetric Flask Capacity 1000mL (1L) Accuracy Class Class A Tolerance ±0.30mL Calibration To Contain (TC) at 20°C Flask Feature Upper Mixing Bulb Mixing Bulb Capacity Approximately 100mL Stopper Type Hollow Glass Standard Taper Stopper Size No. 22 Neck Construction Reinforced Heavy-Tubing Neck Body Construction Machine-Blown Glass Flask Shape Flat Bottom Height Approximately 323mm Outside Diameter Approximately 125mm Quantity per Pack 1 Piece Quantity per Case 6 Pieces Reusable Yes Applicable Standards ASTM E694, ASTM E542 and ASTM E288 Applications Solution Preparation, Liquid Mixing, Powder Dissolution, Analytical Chemistry, Pharmaceutical Testing