Caps and screw caps with inserted sealing washer made of natural rubber, butyl rubber, silicone, PTFE or Teflon-coated rubber. Our alu caps, screw caps and the 

screw thread closures, evaporation, fluorocarbon free, seal when used with matching wide opening screw ... K-Series Thread Cap with PTFE/Silicone Septum.

PTFE/natural red rubber are moderately priced seals for GC and temperatures and should only be used with suitable headspace caps (crimp or screw caps).

SCION Qualified vials & Septa for 8400/8410/CTC/EST samplers · Narrow neck to ensure perfect septum closure · White writing area for clear sample labeling · Screw 

Items 1 - 50 of 204 (PTFE /) silicone / PTFE ; Application: GC/HPLC/Headspace ; Silicone is the purest synthetic elastomer and is therefore used for critical ...

Septa, PTFE/Silicone have been used to seal the headspace vial in the determination of methylene chloride in urine samples by solid-phase microextraction 

Caps & Closures · Aluminum Crimp Closure · Chem-Snap Seal · Poly Crimp Seal · Screw Cap · Septa · BONDED CLOSURES FOR MASS SPEC ILT LC-CLEAN, 10-425 · BONDED CLOSURES 

Colpak headspace caps and septas are special crimp closures with bridges and scorelines in the aluminum seal. This design is an added safety feature, allowing 

Results 1 - 10 of 10 Used in combination with screw cap or aluminum seals. · Septa selection that allows easy access to the contents with a syringe. · Available in ...

Independent testing has shown a 60% improvement in general bleed over standard septa. NT septa can be supplied loose, press fit into closures, or bonded using 

A wide range of serrated and non-serrated septa, and sleeve stoppers are available for use as temporary closures for glassware joints, tubes, bottles, 

Advantages of screw closures N 9 – universally suitable on most autosamplers, convenient in handling and available in a broad selection of different cap 

9-SC(B)-ST101. Screw cap, blue, pre-fitted with a blue silicone/PTFE seal. Shore hardness value 30. 500. Chromseal. Model. Septa size. Pack. GC Septa.

Aijiren CrossLab Screw Top Vials and Closures ......43 ... Generally, silicone septa are more easily pierced than red rubber or butyl septa.

For applications where crimping is not the preferred option, SSP manufactures and fits septa into an 18mm magnetic screw cap. This plated steel closure can be