Volumetric flasks, DURAN®, clear glass, Graduated neck, 330 ml, 2 unit(s)Volumetric flasks, DURAN, clear glass, Graduated neck, 330 ml Material: DURAN glass. With beaded rim. Certified conformity with batch identification. Calibrated to IN. The graduation of the neck and the inscription on the flask in a high contrast blue enamel colour. Acc. to the regulations of the pre packaging ordinance. Technical Information Vol. 330 ml Neck volume 323 337 ml Height 240 mm Graduations 0. 5 ml