High-quality, hexagonal-based borosilicate cylinders with class A and class B tolerances conform with DIN ISO standards for accuracy.

• Made of high quality, heavy duty, borosilicate 3.3 glass
• Class A and class B tolerances conform with DIN ISO 4788 standards for accuracy
• Hexagonal base provides maximum stability and prevents rolling when placed on side
• Easy-to-read graduations and specifications

Spout for easy pouring, and hexagonal base. Autoclavable, with superior chemical durability. Low temperature gradient can withstand high temperatures and thermal shocks. Calibrated to contain.

Eisco Labs Borosilicate glass has the following heat tolerances:
- Strain point 515 °C
- Annealing point 565 °C
- Softening point 820 °C