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Picture of Crimp closure, N 20, alu., center hole,Butyl d. gray/PTFE gray,high purity,3.0mm70234.10

Crimp closure, N 20, alu., center hole,Butyl d. gray/PTFE gray,high purity,3.0mm70234.10

N 20 aluminium crimp cap, silver, center hole Butyl dark gray / PTFE gray*, high purity 50° shore A 3 m
SKU: 70234.10
Manufacturer: Machery Nagel

 

Similar product as 70234, however, with a higher analytical purity. These 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. 

Hazardous materialNo
Closure typeCrimp closure
Nominal diameterN 20
Assembling processAssembled
Cap materialAluminum
Cap colorSilver
Cap holeYes
Closure magneticNo
Septa materialButyl/PTFE (high purity), Butyl/PTFE (Pharma-Fix)
Colors of septa materialDark gray/gray
Septa thickness3.0 mm
Septa hardness50° shore A
Additional closure featuresHigh purity molded septum, only centrically laminated with PTFE, typically called Pharma-Fix, excellent sealing, temp. resistant from -40 °C up to 120 °C
Recommended application(s)Headspace
Autosampler compatibilityAgilent, PerkinElmer, Varian
Storage temperatureRT
Scope of delivery100x N 20 ready assembled crimp closures

 

Attribute nameAttribute value
Diameter20mm
ColourSilver
WithButyl/PTFE

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