- Made of high quality, heavy duty, borosilicate 3.3 glass
- Beaded rim facilitates proper stopper fit (stopper not included)
- Class B tolerance, as per ISO 1042
- Features a single graduation mark for precise dilution and preparation
Volumetric flask made of high quality, heavy duty borosilicate 3.3 glass. Single, white graduation mark and a beaded rim. No stopper. Class B as per ISO 1042 standards. Calibrated to contain. 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.