Reusable Kimax® pipet has a permanently marked individual serial number. Supplied with a Certificate of Graduation Accuracy. Calibrated to deliver. Intended for chemical laboratory work. Tip openings are smaller than usually desired for clinical laboratory operations. Scale is permanent brown stain fused into uniform bore tubing without etching. Pipet is graduated to a base line which is on the straight tube above the taper. Color-coded for ease in sorting and selecting the correct size pipet. Designed from ASTM Specification E1293, Style 1, Class A requirements.