These Borosil® volumetric flasks with interchangeable solid glass penny head stoppers are manufactured from 3.3 Borosilicate I.D. control tubing.

• Type I Class A
• Permanent amber markings
• Calibrated TC (to Contain)

Each flask is individually calibrated with an automatic, computer controlled, calibration machine, providing a more accurate volume. Borosil’s volumetric flasks are designed to give the best combination of thermal shock resistance, physical strength and resistance to chemical attack. All volumetric flasks have permanent amber printing.

*Certified and Calibrated at 20 °C.