Description
Standard septa N 12 ST are precision sealing discs for chromatography vial closures and related analytical sample handling. Each septum has an outer diameter of 12 mm and a thickness of 4 mm, giving a defined geometry for secure seating in matching N 12 caps. The pack contains 50 pieces, supporting routine GC and HPLC workflows where consistent resealing after needle penetration is required. These standard septa are intended for everyday laboratory use in sample preparation, injection and short-term storage of analytical solutions. Dimensional control of the 12 mm diameter and 4 mm thickness helps maintain a reliable barrier against evaporation and contamination while remaining compatible with manual and automated injectors. Offered by manufacturer Macherey-Nagel within its chromatography accessories range, the N 12 ST format suits quality-control, method-development and high-throughput sequences that do not demand specialised high-temperature materials. Laboratories select this pack size when they need ready-to-use septa with clear dimensional specifications for screw or crimp closures in analytical chemistry environments.
Key features
- Pack size: 50 pc(s)
- Product type: Standard septa N 12 ST
- Outer diameter: 12 mm
- Thickness: 4 mm
- EAN: 4046681087080