Test Tubes
Test tubes are standardized glass or plastic tubes used for sampling and chemical reactions. They are essential consumables for daily laboratory work.
Product
Test Tubes
Test tubes are standardized glass or plastic tubes used for sampling and chemical reactions. They are essential consumables for daily laboratory work.
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Guide and selection support
Test tubes are used to collect, store, and analyze small amounts of liquids or solids in laboratories across many specialties. They enable precise chemical reactions, sample measurements, or microbiological applications.
When selecting test tubes, key factors include the material (glass or plastic), size, volume, and design (e.g., flat or round bottom). Compatibility with accessories such as racks or centrifuges may also be important.
LabFinder provides structured product data and clear categorization, making it easy to source the appropriate test tubes as laboratory consumables.
Use and benefits
Test tubes are standardized tubes mainly used in chemistry, biology, microbiology, and diagnostics for handling small sample volumes, performing experiments and reactions, and temporary sample storage. Their slim shape enables easy handling and supports a wide variety of analyses and experiments.
Selection criteria
Important criteria when choosing test tubes include material (typically borosilicate glass or various plastics), length, diameter, and volume. Other factors are bottom shape (round or flat), suitability for thermal applications (such as heating), and compatibility with accessories like racks or caps.
Variants and measurement principles
Test tubes are available as self-standing or round-bottomed versions, with varying sizes and shapes. Special types are designed for specific needs, such as large-diameter tubes for improved visibility or reinforced materials for increased thermal resistance.
Quality, storage and handling
Glass test tubes are chemically durable and can be reused after proper cleaning. Plastic test tubes are less likely to break but often intended for short-term use. Cleaning methods should suit the tube material and may be mechanical or chemical. Care should be taken to avoid damage or contamination.
Application limits
Test tubes are not designed for storing large liquid volumes or for the long-term storage of aggressive substances—special containers are recommended for such uses. Plastic tubes are often unsuitable for high temperatures. Careful handling is important to prevent breakage and sample loss.
Search terms and related terms
Common related search terms and synonyms include: test tube, sample tube, reaction tube, laboratory tube, analysis tube, measuring tube, glass tube, and sample vial.
Also known as
test tube
sample tube
collection tube
reaction tube
analysis tube
measuring tube
laboratory tube
sample vial
lab tube
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Frequently asked questions
What are test tubes used for in the laboratory?
Test tubes are used for holding small sample volumes, conducting chemical reactions and analyses, and for temporary storage of liquids or solids in the lab.
What materials are test tubes made of, and when are they used?
Test tubes are usually made of borosilicate glass, which is heat-resistant and chemically stable, or of plastic, which is less fragile but less heat-resistant. The choice depends on the application and handling needs.
What criteria are important when selecting test tubes?
Important selection criteria include material, volume, size, bottom shape, compatibility with accessories, and resistance to temperature and chemicals.
How should test tubes be cleaned?
Glass test tubes are cleaned mechanically or chemically using brushes and suitable cleaning agents. Plastic tubes require gentler handling and may be reusable depending on the material.
What are the limitations of test tubes in laboratory practice?
Test tubes are not suitable for long-term storage of large volumes or aggressive chemicals and should not be used at high temperatures unless specifically designed for such use.
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