PYREX® 1000mL Class A Low Actinic Volumetric Flask with No. 22 Glass Stopper – 55640-1L

The PYREX® 1000mL Class A Low Actinic Volumetric Flask is a precision laboratory glass flask designed for accurate preparation, dilution and measurement of light-sensitive chemical solutions. Manufactured from specially stained low-actinic glass, it helps protect photosensitive reagents while retaining the mechanical strength, chemical stability and thermal resistance of PYREX® laboratory glassware. Featuring a flat-bottom design, long neck, permanent calibration line and No. 22 glass standard taper stopper, it is suitable for pharmaceutical analysis, analytical chemistry, laboratory quality control and scientific research. Key Features & Specifications - Brand: PYREX® by Corning - Product Code: 55640-1L - Capacity: 1000mL (1 Litre) - Material: Low Actinic Stained Glass - Flask Type: Volumetric Flask - Accuracy Classification: Class A - Measurement Tolerance: ±0.30mL - Flask Shape: Flat Bottom - Neck Style: Long Neck - Stopper Type: Hollow Glass Standard Taper Stopper - Stopper Size: No. 22 - Stopper Included: Yes - Light Protection: Helps protect light-sensitive solutions - Graduation: Permanent precision calibration line - Markings: High-visibility white lettering - Flask Height: Approximately 342mm - Flask Outer Diameter: Approximately 125mm - Construction: Machine-blown body with reinforced glass neck - Reusable: Yes - Manufacturer Packaging: 1 Piece per Case - Applications: Volumetric solution preparation, light-sensitive reagent handling, pharmaceutical testing, chemical analysis and laboratory quality control.