Kimax® glass precision bore buret permanently marked with an individual serial number. Supplied with a Certificate of Graduation Accuracy. Designed from ASTM Specification E287, Class A requirements. Kim-Kap® dust cap is included. Delivery stem of the 10mL size is 115mm long to meet requirements of potentiometric titration burets (ASTM D664). PTFE stopcock for all sizes is PS 2. Scale is a durable white ceramic enamel.