Micro Volumetric Flask, PYREX, Class A, 5 mL, Standard Taper Stopper, Corning, 5630-5

These 5 mL PYREX® microvolumetric flasks are calibrated to Class A tolerances. They are designed for microchemical work in accordance with the recommendations of the Committee of Microchemical Apparatus, Analytical Division of the A.C.S. To improve the stability of this small flask, a hexagonal base, similar to those on all cylinders, has been added. Uses a No. 8 Standard Taper PYREX® stopper. The graduation line is sharp and permanent. The white markings are easy to read. Reference: ASTM E-237.