Cylinder Measuring Graduated, cap. 10ml., class 'B', Hex. base with spout, borosilicate glass, Blue Graduation-EIS-CH0345A10 offers a thoughtfully designed, durable resource for hands-on learning. 10ml graduated measuring cylinder made of high quality, heavy duty Borosilicate 3.3 glass. Spout for easy pouring, and hexagonal base for extra stability. Class B tolerance, ±0.20ml as per DIN EN ISO 4788 standard. Blue printed graduations and specifications. 0.2ml subdivisions. Cylinder stands 5.5" tall, with a base measuring 1.9" wide. Inner diameter of cylinder body measures 12mm (0.5"), and outer diameter measures 16mm (0.6"). Autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures & thermal shocks. Eisco Labs Borosilicate glass has the following heat tolerances: Strain Point -515°C | Annealing Point 565°C | Softening Point 820°C. Calibrated to contain.