PYREX 5mL Class A Volumetric Flask with No. 8 Polyethylene Standard Taper Stopper

The PYREX 5mL Class A Volumetric Flask with Polyethylene Standard Taper Stopper is precision laboratory glassware designed for accurate measurement, preparation and dilution of small liquid volumes. Manufactured from durable borosilicate glass, it features a heavy-duty machine-blown body, reinforced long neck, permanent graduation line and No. 8 high-density polyethylene (HDPE) stopper. Its Class A accuracy makes it suitable for analytical chemistry, pharmaceutical testing, quality control and laboratory research. Key Features - 5mL capacity for precise small-volume solution preparation. - Class A accuracy with ±0.02mL tolerance. - Durable borosilicate glass construction. - No. 8 polyethylene standard taper stopper included. - Closed-bottom HDPE stopper for secure closure. - Heavy-duty machine-blown glass body. - Reinforced neck for improved durability. - Sharp permanent graduation line for accurate measurements. - Large white markings for easy identification. - Flat-bottom design for stable laboratory placement. - Long narrow neck for controlled filling to the calibration mark. - Reusable laboratory glassware for analytical and research applications. Specification Details Brand PYREX (Corning) Product Code 5642-5 Capacity 5mL Accuracy Class Class A Tolerance ±0.02mL Material Borosilicate Glass Flask Type Heavy-Duty Volumetric Flask Stopper Size No. 8 Stopper Type Polyethylene Standard Taper Stopper Material High-Density Polyethylene (HDPE) Stopper Design Closed Bottom Flask Shape Flat Bottom Neck Style Long Reinforced Neck Height Approximately 91mm Outer Diameter Approximately 26mm Applicable Standards ASTM E694, ASTM E542 and ASTM E288 Graduation Permanent Single Calibration Line Reusable Yes Quantity per Pack 1 Flask Quantity per Case 1 Flask Replacement Stopper Series PYREX 7624