Bi-metal crimp closure, N 20, blue/tin, hole, Sil. blue tr./PTFE(Pharma-Fix),3mm
US$81.60*
*taxes and shipping not included
Bi-metal crimp closures support transportation of the vial via magnet, as for e.g. in the CTC Combi PAL, the Shimadzu AOC 5000/6000 or the Gerstel autosampler. They are generally more difficult to crimp/decap which is why Headspace screw neck vials N 18 may be a more convenient alternative. We recommend Silicone/PTFE septa as the optimal choice for Headspace, as they offer a temperature resistance form -60 °C up to 200 °C, highest analytical purity and excellent penetration properties. These closures with a molded, high purity Silicone/PTFE septa are only laminated with PTFE in the contact area with the sample. Thus the elastomeric Silicone 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. Septa are assembled, caps are ready-to-use. Septa are shown for illustration purposes only, images upside down.
| Additional closure features | Temp. resistance -60 °C up to 200 °C / analytical purity - high / soft to penetrate / medium resealability / excellent sealing properties due to Pharma-Fix design of molded septum |
|---|---|
| Assembling process | Assembled |
| Autosampler compatibility | Shimadzu AOC 5000 |
| Cap color | Blue/silver |
| Cap hole | Yes |
| Cap material | Aluminum/tin |
| Closure magnetic | Yes |
| Closure type | Crimp closure |
| Colors of septa material | Blue transparent/colorless |
| Gross weight (incl. packaging) | 205 g / 0.45 lbs |
| Hazardous material | No |
| Nominal diameter | N 20 |
| Packaging dimensions | 120 x 170 x 30 mm / 4.72 x 6.69 x 1.18 Inch |
| Recommended application(s) | Headspace |
| Scope of delivery | 100x N 20 ready assembled crimp closures |
| Septa hardness | 45° shore A |
| Septa material | Silicone/PTFE |
| Septa thickness | 3.0 mm / 118,1 mil |
| Storage temperature | 15–25 °C / 59–77 °F |