With silicone / PTFE septa, Ultraclean
Crimp and headspace seals ND20 are made of aluminium and are supplied with fitted septa made of a variety of materials. There are the following different types of caps available:
Plain caps with a 10 mm center hole. These caps are suitable for standard applications. They are available in several colours on request.
Clear lacquered caps, so called headspace caps, with a special score line that breaks when the internal pressure reaches 3.0 ± 0.5 bar. The excess pressure is then released, and the risk of the vial exploding can be avoided.
Clear lacquered centre tear-off caps and complete tear-off caps. These caps are available in several colours on request.
Gold lacquered, magnetic crimp caps with 5 mm centre hole to be used with CE HS500/HS800, CTC 500, as well as Fisons HS500 / HS800 instruments.
Gold lacquered, magnetic crimp caps with 8 mm centre hole to be used with CTC Combi PAL instruments.
Red lacquered, magnetic bimetal crimp caps with 8 mm centre hole to be used with CTC Combi PAL instruments.
These septa, made of silicone blue transparent / PTFE white, are temperature-resistant from -60 °C to 200 °C. They are 3.0 mm thick and have a hardness of 45° shore A. They have better purity than septa made of natural rubber or red rubber. However they have less effective resealability properties and are therefore more suitable for single-injection applications.
Due to their high cleanliness, they are especially used for critical and sensitive analysis.
Caps | PK | Cat. No. | ||
---|---|---|---|---|
Standard, 10 mm | 100 | 6204709 | Open webshop | |
Standard, 10 mm, red laquered | 100 | 7623194 | Open webshop | |
Standard, 10 mm* | 100 | 7647527 | Open webshop | |
Headspace | 100 | 7615893 | Open webshop | |
Complete tear-off | 1000 | 6239164 | Open webshop | |
Magnetic, 5 mm* | 100 | 7615224 | Open webshop | |
Magnetic, 8 mm* | 100 | 7615866 | Open webshop | |
Magnetic, bimetal, 8 mm* | 100 | 7616884 | Open webshop |