round bottom gas chromatography vials with PTFE septa for sale
GC Headspace Vials, EPA Sample Storage Vials, COD Tubes
VA is screw headspace vial, VH is crimp headspace vial, R is stand for Round Bottom For Example: V2015,20 means 20ml, 1 means clear color, 5 means 5.0 type, so V2015 means 20ml clear EPA vial , 5.0 type
septa for 20ml headspace vials with screw caps wholesales
Combine PTFE Septa and 9mm Screw Cap–Aijiren Vials. 18mm Screw Top Headspace Vial optional capacity is 10ml 20ml, the specifications are: 22.5*46mm, 22.5*75.5mm, providin...
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