ASTM centrifuge tube, cylindrical, with conical base, borosilicate glass 3.3

ASTM centrifuge tube, pear-shaped with cylindrical base, borosilicate glass 3.3

Dissolved oxygen bottles, Winkler pattern

Overflow-Volumetric flasks, Borosilicate glass 3.3

Sedimentation cones, borosilicate glass 3.3

Weighing scoops, Borosilicate glass 3.3