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. Designed from ASTM Specification E288, Class A serialized requirements. Replacement cap is 28150R. Capacity: 100mL. ± Tolerance: 0.08. Plastic Cap No.: 4. Height: 160mm. Kimble #: 28012-100.