{"v":"2.0","page_type":"product","title":"These 1L Class A PYREX volumetric flasks have machine-blown bodies to which are sealed heavy-beaded, heavy-tubing necks, tooled for No. 22 standard taper polyethylene stoppers. The linear high density polyethylene stoppers are made with a closed bottom to conform to standard taper stopper dimensions. The graduation line is sharp and permanent and large white block letters make the inscription easy to read. These Class A volumetric flasks have been manufactured to Class A tolerances as established by ASTM E-694 for volumetric ware, ASTM E-542 for calibration of volumetric ware, and ASTM E-288 for volumetric flasks. Material: Borosilicate Glass Code 7740. Capacity: 1000mL. Flask Style: Volumetric. Flask Shape: Flat Bottom. Top Style: Standard Taper Stopper. Neck Style: Long. Stopper Style: HDPE. Standard Taper Stopper Number: No. 22. Flask Feature: Heavy Duty. Accuracy Class: Class A. Feature: Reusable. Tolerance: +/-0.3mL. Height: 342mm. 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These Class A volumetric flasks have been manufactured to Class A tolerances as established by ASTM E-694 for volumetric ware, ASTM E-542 for calibration of volumetric ware, and ASTM E-288 for volumetric flasks. Material: Borosilicate Glass Code 7740. Capacity: 1000mL. Flask Style: Volumetric. Flask Shape: Flat Bottom. Top Style: Standard Taper Stopper. Neck Style: Long. Stopper Style: HDPE. Standard Taper Stopper Number: No. 22. Flask Feature: Heavy Duty. Accuracy Class: Class A. Feature: Reusable. Tolerance: +/-0.3mL. Height: 342mm. Outer Diameter: 125mm. 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