KIMAX precision bore buret is permanently marked with an individual serial number and 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 10 mL size is 115 mm long to meet requirements of potentiometric titration burets ASTM D664. PTFE plug for all sizes is 2mm. Scale is a durable white ceramic enamel. Replacement stopcock available.