PYREX 200mL Class A Volumetric Flask with No. 13 PTFE Standard Taper Stopper

The PYREX 200mL Class A Volumetric Flask with PTFE Stopper is precision laboratory glassware designed for accurate solution preparation, dilution and volumetric measurements. Manufactured with a heavy-duty machine-blown glass body, it features a reinforced long neck, permanent graduation line and No. 13 color-coded PTFE keyhole stopper. Its Class A accuracy makes it suitable for analytical chemistry, pharmaceutical testing, quality control and laboratory research. Key Features - 200mL capacity for precise laboratory solution preparation. - Class A volumetric accuracy with ±0.10mL tolerance. - Durable heavy-duty PYREX glass construction. - No. 13 PTFE standard taper stopper included. - Color-coded keyhole stopper for easy handling and identification. - Chemically resistant polytetrafluoroethylene (PTFE) stopper. - Heavy-duty machine-blown glass body. - Reinforced heavy-beaded neck for improved durability. - Sharp permanent graduation line for accurate volume measurements. - Large white markings for easy reading. - Flat-bottom design for stable laboratory placement. - Long narrow neck for controlled filling to the calibration mark. - Reusable for analytical chemistry, pharmaceutical and research applications. Specification Details Brand PYREX (Corning) Product Code 5644-200 Capacity 200mL Accuracy Class Class A Tolerance ±0.10mL Material PYREX Laboratory Glass Flask Type Heavy-Duty Volumetric Flask Stopper Size No. 13 Stopper Type PTFE Standard Taper Stopper Material Polytetrafluoroethylene (PTFE) Stopper Design Color-Coded Keyhole Flask Shape Flat Bottom Neck Style Long Reinforced Neck Height Approximately 214mm Outer Diameter Approximately 74mm Applicable Standards ASTM E694, ASTM E542 and ASTM E288 Graduation Permanent Single Calibration Line Reusable Yes Quantity per Pack 6 Flasks Quantity per Case 12 Flasks Replacement Stopper PYREX Series 7630 No. 13