Description
PP caps for culture tubes Ø 20 mm are polypropylene closures made for culture tubes with a diameter of 20 mm. They are intended for the sterilization of tubes and replace conventional cotton plugs in routine laboratory work. The caps are sterilizable up to 121 °C and are supplied in yellow for clear visual identification. Offered in packs of 100 pieces from manufacturer LAT, these polypropylene caps provide a practical fit for 20 mm culture tubes during autoclave cycles and general culture handling. By substituting cotton stoppers they simplify tube preparation and reduce loose-fibre handling at the bench. The yellow colour supports quick sorting when several tube diameters or batches are processed together. Suitable for microbiology and culture-tube workflows that require heat-stable closures, the caps combine a defined diameter match with a convenient pack size for everyday laboratory stocking. Their polypropylene construction is chosen for compatibility with sterilization at the stated temperature while remaining easy to apply and remove from standard culture tubes.
This article is part of Test tubes, in Tubes & vials.
Key features
- Pack size: 100 pcs
- Material: Polypropylene (PP)
- Tube diameter: 20 mm
- Colour: Yellow
- Sterilizable: up to 121 °C
- Function: Replaces cotton plugs
- Technical Information Sheet:
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Questions about Caps made of PP for culture tubes, for Ø, 20 mm
What is this article?
Caps made of PP for culture tubes, for Ø, 20 mm is the article on this page. Luminix Health distributes LAT for laboratory use. It sits in Test tubes, inside Tubes & vials, in Labware.
A test tube is the open cylindrical vessel for a small liquid, in borosilicate glass or in plastic. Rimmed and rimless mouths differ. The size is diameter by length. It is not graduated for a result, and a glass tube that will be centrifuged has a force limit.
A tube holds a small sample upright. A test tube is the open glass or plastic cylinder. A centrifuge tube is conical so a pellet forms at the tip, and it is rated for a centrifugal force the rotor will actually reach. A vial is a small closed bottle, often for a sample that will sit in an instrument. NMR tubes are a special case: the glass has to be uniform or the spectrum is the tube, not the sample. Laboratory ware is listed under ISO laboratory glassware.
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The category is Tubes & vials. The sub-category is Test tubes. The catalogue is Labware.
Shelves beside this one are Centrifuge tubes (conical), Sample vials & NMR tubes and Tube & vial accessories.
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