Glass test tube

Introduction to Glass test tube

Glass test tubes are round-bottom cylindrical sample containers used in laboratories to carry out chemical reactions, microbial culture, heating, and test sample analysis. Depending on test requirements, users can choose heat-resistant borosilicate glass or disposable soda-lime glass.

When selecting glass test tubes, laboratories need to consider the rim style, including rimmed, rimless, or screw-thread caps such as GL14 and GL18. Test tube sizes are highly diverse, ranging from small sizes like 6 x 50 mm, 8 x 70 mm (2 ml), and 10 x 75 mm (4 ml) to large sizes like 20 x 180 mm (40 ml) or 25 x 150 mm. Hoa Viet distributes reusable and disposable glass test tube lines from Assistent (Germany), Duran (Germany), and Kimble-DWK (USA).

When should rimmed and rimless test tubes be chosen?

Rimmed test tubes facilitate handling and liquid pouring, and are easy to secure in racks or with laboratory clamps. Conversely, the rimless type is typically suitable when tighter rubber stopper sealing is required or for placement in centrifuge and shaker racks.

What materials are available for glass test tubes at Hoa Viet?

The portfolio currently includes products manufactured from heat-resistant borosilicate glass suitable for reuse, and soda-lime glass dedicated to disposable culture.

Which brands of glass test tubes does Hoa Viet currently supply?

Hoa Viet distributes glass test tubes from brands including Assistent (Germany), Duran (Germany), and Kimble-DWK (USA) with a full range of specifications: rimmed, rimless, and screw-capped.

How should caps be chosen for culture tubes?

Users should choose according to the tube's thread size, such as standard thread GL14 or GL18, optionally with rubber liners to ensure leak-tight sealing for biological samples.