PYREX 50mL Class A Volumetric Flask with 18-410 Phenolic Screw Cap

The PYREX 50mL Class A Volumetric Flask with Screw Cap is precision laboratory glassware designed for accurate solution preparation, dilution and volumetric measurements. Manufactured from durable borosilicate glass, it features an expanded neck opening for transferring powders and crystals, a permanent calibration mark and a black phenolic screw cap with a cone-shaped polyethylene liner. Its Class A accuracy makes it suitable for analytical chemistry, pharmaceutical testing, quality control and laboratory research. Key Features - 50mL capacity for accurate laboratory solution preparation. - Class A volumetric accuracy with ±0.05mL tolerance. - Durable PYREX borosilicate glass construction. - Standard 18-410 GPI threaded screw cap included. - Black phenolic cap with cone-shaped polyethylene liner. - Poly-seal closure designed to provide a leak-resistant seal. - Expanded neck opening for easier transfer of crystals, salts and powders. - Permanent calibration mark for accurate volumetric measurements. - Flat-bottom design for stable laboratory placement. - Long neck for controlled filling to the calibration mark. - Reusable laboratory glassware for analytical and research applications. - Suitable for chemical, pharmaceutical, educational and quality control laboratories. Specification Details Brand PYREX (Corning) Product Code 5650-50 Capacity 50mL Accuracy Class Class A Tolerance ±0.05mL Material Borosilicate Glass Flask Type Volumetric Flask with Screw Cap Cap Type Threaded Screw Cap Cap Material Phenolic Cap Colour Black Cap Liner Cone-Shaped Polyethylene Thread Finish 18-410 GPI Closure Design Poly-seal Flask Shape Flat Bottom Neck Style Long Neck with Expanded Opening Approximate Height 130mm Approximate Outer Diameter 50mm Accuracy Standard ASTM Class A Capacity Tolerance Graduation Single Calibration Mark Reusable Yes Quantity per Pack 6 Flasks Quantity per Case 12 Flasks Replacement Screw Cap PYREX 5650-18CO