PYREX® VISTA™ 1000mL Class A Volumetric Flask with Glass Standard Taper Stopper – 70640-1L

The PYREX® VISTA™ 1000mL Class A Volumetric Flask is a precision laboratory glass instrument designed for accurate preparation of standard solutions, sample dilution, pharmaceutical analysis, and laboratory quality control. Manufactured by Corning, the flask features a long neck with a permanent calibration line, clear blue markings, and a No. 22 standard taper glass stopper. Its Class A accuracy makes it suitable for analytical applications requiring reliable fixed-volume measurements. Ideal for pharmaceutical laboratories, diagnostic laboratories, chemical testing facilities, research institutions, educational laboratories, and quality control departments. Key Features & Specifications - Brand: PYREX® VISTA™ - Manufacturer: Corning - Product Number: 70640-1L - Supplier Reference: 401491 - Capacity: 1000mL (1 Litre) - Product Type: Volumetric Laboratory Flask - Accuracy Classification: Class A - Calibration: Fixed-volume volumetric calibration - Calibration Temperature: 20°C - Material: Laboratory glass - Flask Shape: Volumetric / pear-shaped - Bottom Style: Flat bottom for stable positioning - Neck Style: Long neck - Graduation: Single sharp permanent calibration line - Marking Colour: Blue - Stopper Type: Standard taper glass stopper - Stopper Size: No. 22 - Stopper Material: Hollow glass - Stopper Included: Yes - Polyethylene Cap Included: No - Sterility: Non-sterile - Reusable: Yes - Applicable Standards: ASTM E694, ASTM E542, and ASTM E288 - Quantity per Pack: 1 flask - Quantity per Case: 2 flasks - Applications: Standard solution preparation, analytical chemistry, sample dilution, pharmaceutical testing, and laboratory quality control