PYREX 2000mL Class A Mixing Volumetric Flask with No. 27 Glass Standard Taper Stopper

The PYREX 2000mL Class A Mixing Volumetric Flask is precision laboratory glassware designed for accurate solution preparation, dilution and reagent mixing. Manufactured with a durable machine-blown glass body and reinforced neck, it features a distinctive upper mixing bulb, permanent calibration mark and No. 27 glass standard taper stopper. The additional mixing bulb provides space for shaking liquids and dissolving powders, making the flask suitable for analytical chemistry, pharmaceutical testing, quality control and laboratory research. Key Features - 2000mL (2 Litres) calibrated capacity for accurate laboratory solution preparation. - Class A volumetric accuracy with ±0.50mL tolerance. - Upper mixing bulb for improved mixing when shaken. - Approximately 100mL upper mixing bulb capacity, equivalent to one-twentieth of the flask's rated capacity. - No. 27 standard taper hollow glass stopper included. - Durable machine-blown PYREX glass body. - Heavy-tubing neck for improved strength and durability. - Permanent graduation mark for accurate volumetric measurements. - Flat-bottom construction for stable laboratory placement. - Manufactured to ASTM Class A volumetric glassware requirements. - Reusable for analytical chemistry, pharmaceutical and research applications. Specification Details Brand PYREX (Corning) Product Code 5820-2L Capacity 2000mL (2 Litres) Accuracy Class Class A Volumetric Tolerance ±0.50mL Material PYREX Laboratory Glass Flask Type Mixing Volumetric Flask Special Feature Upper Mixing Bulb Approximate Upper Bulb Capacity 100mL Upper Bulb Proportion 1/20 of Rated Flask Capacity Mixing Bulb Location Between Calibration Mark and Stopper Stopper Size No. 27 Stopper Type Glass Standard Taper Stopper Material Glass Stopper Design Hollow Glass Flask Shape Flat Bottom Neck Construction Heavy-Tubing Neck Approximate Height 397mm Approximate Outer Diameter 158mm Applicable Standards ASTM E694, ASTM E542 and ASTM E288 Reusable Yes Quantity per Pack 1 Flask Quantity per Case 1 Flask Replacement Stopper Series PYREX 7650 Flask and Stopper Supplied Yes Primary Applications Solution Preparation and Reagent Mixing