Calibrated to deliver. Cylinders are made of sturdy borosilicate glass with a hexagonal glass base that has been flat ground for stability. The 10mL cylinder has an enlarged funnel-shaped top for ease of filling. Cylinders 25mL and larger are supplied with SAFE-GARD* bumpers, which are sturdy split rings made of yellow low-density polyethylene.
Designed from ASTM Specification E1272, Style 1, Class A requirements. Each cylinder is permanently marked with an individual serial number and is supplied with a Certificate of Graduation Accuracy.