Borosilicate glass, long neck, round bottom, 24/29 socket size. Designed for nitrogen determination as per Kjeldahl method. Conforms to DIN ISO 12360 standard. Flask measures 11.5" tall and 4" width at its widest point.

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.

Eisco Labs proudly manufactures its own products using state-of-the-art equipment, and following the highest standards of quality control.