These precision-molded natural rubber septa for 5 mm and 10 mm NMR sample tubes seal against both the inner and outer surfaces of standard thin-wall NMR tubes, providing ultimate protection for sensitive or reactive samples by isolating them from air, moisture, and other ambient contaminants.
This dual-seal septum also protects personnel against exposure to samples that may pose health or safety hazards while allowing easy access through the septum using a syringe to add, transfer, or retrieve samples from the NMR tube.
The septa are molded from one certified raw material formulation, ensuring consistency across all sizes and from lot to lot. This soft, resilient natural rubber compound applies easily to NMR tubes and ampules without breaking or cracking fragile thin-wall tubes.
The soft rubber material tolerates multiple penetrations without losing sealing capability, especially when successive penetrations are made at the same location using a sharp, non-coring needle.
Septa should be stored in a sealed plastic bag away from sunlight to inhibit “blooming,” a process that produces a harmless whitish film or powder on the natural rubber surface. Surface bloom does not affect performance and can be removed by wiping or washing.
SEPTA-5-W
White
100
SEPTA-5-R
Red
100
SEPTA-10-W
White
100
SEPTA-10-R
Red
100
SEPTA-5-W NMR Tube Septa (Compatible with Our Thin Wall and Medium Wall NMR Tubes), 5mm, White, 100/Pack
Item no:
SEPTA-5-W
Color:
White
Packed in Lots of:
100
SEPTA-5-R NMR Tube Septa (Compatible with Our Thin Wall and Medium Wall NMR Tubes), 5mm, Red, 100/Pack
Item no:
SEPTA-5-R
Color:
Red
Packed in Lots of:
100
SEPTA-10-W NMR Tube Septa, 10mm, White, 100/Pack
Item no:
SEPTA-10-W
Color:
White
Packed in Lots of:
100
SEPTA-10-R NMR Tube Septa, 10mm, Red, 100/Pack
Item no:
SEPTA-10-R
Color:
Red
Packed in Lots of:
100
