Kimax 28014-250 Borosilicate Glass 250mL, +/- 0.12mL Tolerance, Round with Flat Bottom Class A Volumetric Flask, with Standard Taper Ground Glass Stopper (Pack of 6)

Calibrated 'To Contain', this Kimax flask is test tube shaped with a single graduation ring and marking spot blasted on the neck. A standard taper ground glass stopper is supplied and it is designed from ASTM Specification E288, Class A unserialized requirements. Replacement stopper is 41900R. Capacity: 250mL. ± Tolerance: 0.12. Ground Glass Stopper: 16. Height (with stopper): 250mm. Kimble #: 28014-250.

• 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
• Graduation ring blasted on neck and marking spot on body
• Calibrated to contain with Class A accuracy but without serial number; standard taper ground glass stopper is provided
• Designed from ASTM Specification E288, Class A unserialized requirements