Test tubes

Borosilicate glass resists heat and most chemicals and can be cleaned and reused, so it suits heating over a flame and repeated use, such as the test tube, borosilicate glass, 18 × 180 mm. Soda-lime glass is an economical disposable option. PS tubes are crystal clear and disposable, good for visual checks and aqueous samples, like the disposable test tubes, PS, 10 ml. PP tubes are less clear but resist more chemicals. Check resistance per material on the product page. Racks are in test tube racks. Questions? Ask sales@luminixhealth.com.

A rim makes a tube easier to hold with a clamp or tongs and to pour from; tubes without rim fit closer in racks and seal better with stoppers. A screw cap closes leak-tight for storage, transport or mixing by inversion, as with the test tube, glass, with screw cap, 16 × 160 mm; spare caps are in screw caps and closures. PE plugs close quickly for short-term storage, such as the test tubes, PS, with PE plugs, 16 ml. For other tubes, choose a rubber stopper by diameter. Questions? Ask sales@luminixhealth.com.

Test tubes are described by outer diameter × length in millimetres, such as 12 × 75, 16 × 100, 16 × 160 or 18 × 180 mm, and the size is in each product title. Short, narrow tubes suit small volumes, serology and racks in analysers; longer tubes give room for heating and mixing without spilling, such as the test tube, PP, 16 × 100 mm, 12 ml. Fill tubes to about a third when heating or shaking. Choose diameter and rack together, so the tubes stand stable; racks are in test tube racks. Questions? Ask sales@luminixhealth.com.

A test tube is made for mixing, heating, reactions and short-term storage. When you centrifuge, use a tube that is rated for the g-force of your run, because an ordinary test tube can crack or deform under load and damage the rotor. Centrifuge tubes state their maximum g-force on the product page; check it against the speed and rotor radius of your centrifuge. Conical bottoms collect the pellet in one point. Options are in centrifuge tubes. For graduated reading, the graduated test tubes with spout, 20 ml help in routine work. Questions? Ask sales@luminixhealth.com.

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.

This shelf belongs to Tubes & vials, inside Labware. Luminix Health distributes this range for laboratory use.

The neighbouring shelves are Centrifuge tubes (conical), Sample vials & NMR tubes and Tube & vial accessories. The category above this shelf is Tubes & vials.

Luminix Health distributes this range from the heart of Europe. We deliver across the EU in two to five days if in stock. 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. Send a quote request, contact the team, or read who we are. The full brand index is on shop by brand.

The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology. If the article is not on the shelf, request a quote.