United Scientific Supplies, CY2980-250, 250ml Individually Certified Class A Glass Graduated Cylinder
Cylinder comply with ASTM E-1272, Class A, meets USP standards, individually serialized and certified. With hollow glass stopper.
Double metric scale, calibrated to contain. Borosilicate glass Cylinder with pour spouts feature heavy uniform wall tubing and strong, stable, hexagonal bases. All Cylinder come with bumper guards.