PYREX 1000mL Class A Volumetric Flask with No. 22 Polyethylene Standard Taper Stopper

The PYREX 1000mL Class A Volumetric Flask with Polyethylene Standard Taper Stopper is precision laboratory glassware designed for accurate solution preparation, dilution and volumetric measurements. Manufactured from durable borosilicate glass, it features a heavy-duty machine-blown body, reinforced long neck, permanent graduation line and No. 22 high-density polyethylene (HDPE) standard taper stopper. Its Class A accuracy ensures reliable measurements for analytical chemistry, pharmaceutical testing, laboratory research and quality control applications. Key Features - 1000mL (1 Litre) capacity for accurate laboratory solution preparation. - Class A volumetric accuracy with ±0.30mL tolerance. - Durable borosilicate glass construction. - No. 22 polyethylene standard taper stopper included. - Chemical-resistant HDPE stopper with closed-bottom design. - Heavy-duty machine-blown glass body with reinforced neck. - Sharp permanent calibration line for precise volumetric measurements. - Large white markings for easy identification. - Flat-bottom construction for stable laboratory placement. - Long narrow neck for controlled filling to the calibration mark. - Reusable laboratory glassware for routine applications. - Suitable for pharmaceutical, chemical, educational and research laboratories. Specification Details Brand PYREX (Corning) Product Code 5642-1L Capacity 1000mL (1 Litre) Accuracy Class Class A Tolerance ±0.30mL Material Borosilicate Glass Flask Type Heavy Duty Volumetric Flask Stopper Size No. 22 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 342mm Outer Diameter Approximately 125mm Calibration Standards ASTM E694, ASTM E542 and ASTM E288 Graduation Permanent Single Calibration Line Reusable Yes Quantity per Pack 1 Flask Quantity per Case 6 Flasks Replacement Stopper PYREX Series 7624 No. 22