Volumetric Flask, 50ml - Class A - 12/21 Polypropylene Stopper, Borosilicate Glass, Amber - White Graduation Mark, Tolerance ±0.060 ml - Eisco Labs

• Made of high quality, heavy duty, 3.3 borosilicate glass. Class A tolerance
• Amber color for light sensitive compounds
• 50ml capacity, single white graduation mark
• Fitted with 12/21 polypropylene stopper
• Stands 5.5" tall, and is 2" in diameter at its widest point

50ml capacity volumetric flask made of high quality, heavy duty 3.3 borosilicate glass. Amber color for light sensitive compounds. Single, white graduation mark. Class A, tolerance ±0.06 ml. Fitted with 12/21 polypropylene stopper. Flask stands 5.5" tall, and has a bottom diameter of 2".

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