Cylinder Measuring Graduated, cap. 500ml., class 'A', round base with spout, borosilicate glass, Blue Graduation-EIS-CH0344N offers a thoughtfully designed, durable resource for hands-on learning. 500ml graduated measuring cylinder made of high quality, heavy duty Borosilicate 3.3 glass. Spout for easy pouring, and round base for extra stability. Class A tolerance, ±2.50ml as per DIN EN ISO 4788 standard. Blue printed graduations and specifications. 5ml subdivisions. Cylinder stands 14.25" tall, with a base measuring 3.6" wide. Inner diameter of cylinder body measures 50mm (2"), and outer diameter measures 59mm (2.3"). 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.