Open-top closure with PTFE-faced silicone septa, attached
· Tapered bases allow for maximum sample recovery
· Ungraduated
· 60710 series is manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements
· 60715 series is manufactured from 51 expansion borosilicate amber glass conforming to USP Type I requirements