Description
SILICOSEN® screw caps are laboratory screw-cap accessories intended for culture vessels with outer diameters from 12 mm to 20 mm. They belong to the culture-vials accessories group used in microbiology, molecular biology and cell-culture settings where a matching screw closure is needed for compatible tubes or bottles in that diameter band. Each pack contains 10 pc(s), supporting routine restocking of shared culture-lab supplies. The pack weight is 0,050 kg, so the units remain easy to store in drawers, racks or mobile media trolleys. By specifying the usable diameter range of 12–20 mm, the caps allow quick pairing with SILICOSEN®-related culture plugs and vessels already in use on the bench. These screw caps from manufacturer Hirschmann provide a straightforward dimensional fit description without additional performance assertions, helping purchasers select the correct size family for everyday culture handling, short-term holding and organisation of culture-vial workflows. Use them wherever a defined screw-cap format for the 12–20 mm diameter interval is required within standard laboratory culture-vial accessory inventories.
This article belongs on Biological buffers (Tris, HEPES, MOPS), in Buffers & pH solutions.
Key features
- Pack size: 10 pc(s)
- Product type: Screw caps
- Diameter range: Ø 12–20 mm
- Brand: SILICOSEN®
- Application area: Culture vial accessories
- Weight: 0,050 kg
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Questions about SILICOSEN® screw caps, for Ø 12-20 mm, 10 unit(s)
What is this article?
SILICOSEN® screw caps, for Ø 12-20 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.