Kimax 28012-500 Borosilicate Glass 500mL, +/-0.2mL Tolerance, Class A Serialized and Certified Volumetric Flask, with Snap Cap (Case of 12)

Kimax Class A flask is permanently marked with an individual serial number and supplied with a Certificate of Graduation Accuracy. Calibrated 'To Contain', this flask has a graduation ring and marking spot blasted on the neck and is supplied with a polyethylene snap cap. Flasks have been carefully selected to meet the requirements for accuracy, appearance, glass quality, calibration line, and inscriptions of former NBS Circular 602. This 500mL size is suitable for determination of specific gravity of fine aggregate (ASTM C128). Designed from ASTM Specification E288, Class A serialized requirements. Replacement cap is 28150R. Capacity: 500mL. ± Tolerance: 0.20. Plastic Cap No.: 5. Height: 260mm. Kimble #: 28012-500.

• A volumetric flask is a piece of laboratory glassware with a flat bottomed bulb, a long neck and usually fitted with a stopper for use in analytical chemistry to prepare solutions
• Class A denotes a higher standard for flasks providing a more accurately placed graduation mark and often having a unique serial number for traceability
• Calibrated to contain with Class A accuracy and permanently marked with an individual serial number; supplied with a Certificate of Graduation Accuracy
• Graduation ring blasted on neck and marking spot on body; supplied with #5 polyethylene snap cap
• Designed from ASTM Specification E288, Class A serialized requirements