Class A volumetric glassware provides the highest degree of accuracy.

• Double metric scale, 'To Deliver'
• Meets ASTM E1272, Class A standards, individually serialized and certified
• One-piece molded glass construction with hexagonal base and adjustable plastic bumper guard
• Made from heavy-duty borosilicate 3.3 glass
• Strain point: 515 °C
• Annealing point: 565 °C
• Softening point: 820 °C

They are individually serialized and certified. Each cylinder features a double metric scale, calibrated to deliver. Borosilicate glass 3.3 cylinders with pour spouts feature heavy uniform wall tubing and attached glass hexagonal bases. All cylinders include bumper guards and an individually certified certificate.