Nessler cylinders are used for comparison of color and turbidity between solutions or as reaction vessels. Made from borosilicate glass and calibrated to Class A standards. Include an optically plane bottom as well as markings for nominal stroke volume and halfway mark. Additional Info: Nessler Cylinders, Glass, Class A, 50 Ml, Individually Certified, Pk/10 Package Size(L x W x H): 12.5 X 12.5 X 6 (IN) Categories: Cylinders, Glass HTS Code: 7017.90.5000 UNSPSC: 4.11218e+007 Country Of Origin: INDIA