Crimp closure, N 20, alu., center hole, Butyl dark gray/PTFE gray, 3.0 mm Price List:Default Title These closures with molded Butyl/PTFE

These closures with molded Butyl/PTFE septa are only laminated with PTFE in the contact area with the sample

Ammonium (NH4+) Single-Element Ion Cation Standard

1189668-69-6

because after that it is a fast and quantitative reagent for silylation

Crimp closure, N 20, alu., center hole, Butyl dark gray/PTFE gray, 3.0 mm Price List:Default Title These closures with molded Butyl/PTFEThese closures with molded Butyl PTFE septa are only laminated with PTFE in the contact area with the sample. Thus the elastomeric Butyl can achieve on the vial's glass rims a very tight seal, while in comparison a completely PTFE covered septum would have a very slippery surface on the glass and could easily be twisted around. Technical Data Downloads Closure type Crimp closure Closure magnetic No Autosampler compatibility PerkinElmer Cap material