ProSource Scientific Erlenmeyer flasks meet ASTM E-1404 Type I, Class 1 specifications for classification, design, capacity & dimensions, and markings.

Feature heavy-duty rims to reduce chipping; white, permanent graduations and a large marking square. Made from sturdy borosilicate glass with a low coefficient of expansion. Manufactured with uniform wall thickness which offers optimum balance between thermal shock resistance and mechanical strength. Accuracy: ±5% of full capacity.