Serialized and Certified Straight Bore PTFE Stopcock with Dust CapKIMAX precision bore buret is 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 10 ml size is 115mm long to meet requirements of potentiometric titration burets (ASTM D664).  PTFE plug for all sizes PS 2 (2mm bore).  Scale is a durable white ceramic enamel.  Replacement stopcock is 41500F-2.