Crimp seals ND11 with aluminium septa Septa made from aluminium are suitable for storing standards or reactive substances that can attack normal septum materials. There is also no risk of contamination of the samples with plasticisers, silicone or butyl rubbers or by PTFE, FEP or TEF components. A ring placed above the aluminium septum achieves an excellent seal on the stopper system. Properties
Plain lacquered cap with 5.5 mm hole
Elastomer- and halogen-free
Excellent seal tightness thanks to additional ring
Packaged in plasticiser-free packaging (glass container)
Application areas
Elastomer and plastomer analysis
Phthalate analysis
Analysis of fluorinated/halogenated organic compounds
