Description
SILICOSEN® screw caps are laboratory closures for culture vessels with neck diameters from 34 to 55 mm. The pack contains 10 pc(s) and is intended as a ready-to-use accessory for culture vials in microbiology, molecular biology and cell-culture workflows. Matching the larger 34–55 mm neck range, these caps help close compatible bottles and flasks during incubation, short-term storage and bench handling. The unit weighs 0,031 kg, so it is light to keep in drawers or on media-preparation carts. SILICOSEN® screw caps from manufacturer Hirschmann address laboratories that work with wider-neck culture vessels and need consistent screw-cap coverage across that diameter band. They sit within the culture-vial accessories category and support routine steps such as media filling, sampling intervals and vessel transfer between incubators and workstations. Explicit diameter labelling simplifies selection against existing glassware and plasticware inventories. Choose this pack when standardised closures for the 34–55 mm range are required for daily culture handling, helping keep accessory stocks aligned with the vessel formats used in research and routine laboratory practice.
Key features
- Pack size: 10 pc(s)
- Product type: Screw caps
- Brand: SILICOSEN®
- Diameter range: Ø 34–55 mm
- Weight: 0,031 kg
- Application area: Culture vial accessories
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Biological buffers (Tris, HEPES, MOPS)
Catalogue
Brand
Questions about SILICOSEN® screw caps, for Ø 34-55 mm, 10 unit(s)
What is this article?
SILICOSEN® screw caps, for Ø 34-55 mm, 10 unit(s) is the article on this page. Luminix Health distributes Hirschmann for laboratory use. It sits in Biological buffers (Tris, HEPES, MOPS), inside Buffers & pH solutions, in Lab chemicals.
Tris, HEPES, MOPS and their relatives hold pH in a range that cells and proteins tolerate, with a pKa near the working pH. The useful range is roughly one unit either side of the pKa. A phosphate buffer and Tris are not interchangeable in a method that names one of them, because the ion itself has effects.
A buffer resists a change in pH when a little acid or base is added. It does that because a weak acid and its conjugate base are both present. A pH buffer used to calibrate a meter has a stated value at a stated temperature. A biological buffer such as Tris or HEPES is chosen because it holds the pH of a living system and does not poison it. Conductivity standards are the sister articles for a conductivity meter. The ions are on PubChem. Electrode calibration practice sits with EURAMET and BELAC.
Which category should I open next?
The category is Buffers & pH solutions. The sub-category is Biological buffers (Tris, HEPES, MOPS). The catalogue is Lab chemicals.
Shelves beside this one are pH buffers & conductivity standards and Buffers (other).
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

