Product features

Test tube with screw cap is made of high borosilicate glass, which has higher hardness and thermal shock strength. It has extremely high transparency, allow you to clearly observe the state, color changes and reaction process of the substances in the test tube. Whether conducting chemical experiments，biological culture or other scientific research, all can provide intuitive visual feedback.

High borosilicate glass has good tolerance to most chemicals and will not react with common acid, alkali, salt and other solutions, ensure the accuracy and reliability of experimental data. High borosilicate glass can withstand a certain degree of high temperature and is not easily deformed or damaged during heating operations. This makes test tube with screw cap suitable for experiments that require high temperature conditions, such as heating reactions, sterilization, etc. Its uniqueness lies in its screw-mouth design, which allows the lid of the test tube to be tightly screwed on the test tube to provide good sealing.When conducting some experiments that need to prevent the volatilization, leakage or contamination of substances, the screw cap test tube can effectively protect the experimental samples. The screw mouth also facilitates the opening and closing of the test tube, and the operation is convenient and quick. At the same time, the screw mouth design also makes the test tube reusable, reduce the cost of the experiment. Test tubes with screw caps are available in different capacities and sizes to meet the needs of different experiments. Some test tubes with screw caps are marked with scales, which allow you to accurately measure and control the volume of the substance in the test tube. This is very helpful for experiments that require precise measurement.

Test tube with screw caps have low expansion rate, high temperature resistance, acid and alkali resistance, high strength, high hardness, high light transmittance, high chemical stability, smooth surface, no burrs, no protrusions, fine craftsmanship, delicate and strong, beautiful and textured , uniform wall thickness, smooth and rounded nozzle, transparent luster, straight and slender, high transparency, beautiful and elegant. Sealing cap: It has strong chemical resistance and good sealing performance, and can effectively prevent material leakage or external impurities from entering.

Product details

We can produce different test tubes as per customer’s requirements.We can also print your logo on the tubes if the quantity is large,please feel free to contact us online.

Product specifications

Product applications

Chemical experiments: In chemical experiements, tests tube with screw caps are often used for chemical reactions, solution preparation, sample storage and other operations. Its good sealing and chemical stability allows it to safely contain various chemical reagents.

Biological experiments: In the biological field, test tubes with screw caps can be used for cell culture, microbial culture, nucleic acid extraction and other experiments. The design of the screw mouth can effectively prevent the contamination of microorganisms such as bacteria and viruses, ensuring the accuracy of experimental results.

Medical testing: In medical testing, test tubes with screw caps are widely used for the collection and storage of blood, urine and other samples. Its sealing and stability ensure that samples are not contaminated and deteriorated during transportation and storage.

Teaching demonstration: Because the screw cap test tube is intuitive and easy to operate, it is often used in teaching demonstration experiments. Help students better understand experimental principles and processes and improve teaching effectiveness.