Product features

Test tubes with graduations and ground-in glass stopper are made of high-quality glass and have extremely high transparency, allow the experimenter to clearly observe the state, color changes, reaction processes, precipitation, stratification and other phenomena of the substances in the test tube. This helps to monitor the experimental progress in real time,detect and solve problems in time.

Test tubes with graduations and ground-in glass stopper have good chemical stability, can withstand a certain degree of high and low temperatures, and can adapt to the needs of different experimental conditions. Equipped with a special frosted glass stopper to make the connection between the test tube mouth and the stopper closer, effectively preventing the substances in the test tube from leaking, volatilizing or being contaminated by external impurities. Ensure the safety and accuracy of experiments. The tube body is engraved with precise volumetric markings, which can accurately measure the volume of liquid or solid reagents in the test tube. Graduated test tubes with stoppers are available in a variety of specifications and sizes, includes different diameters, lengths and capacities, to meet the requirements for reagent dosage and reaction vessel size in different experiments. Stoppered graduated test tubes can be reused many times. The design of the test tube with stopper scale pays attention to safety. The stopper is firmly connected to the test tube mouth and is not easy to loosen or fall off.

Test tubes with graduations and ground-in glass stopper has a smooth surface, no burrs, no protrusions, fine craftsmanship, delicate and strong, beautiful and textured, uniform wall thickness, smooth and round, shiny and transparent, straight and slender, precise and clear and easy to read scales.

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

In chemical experiments:

Test tubes with graduations and ground-in glass stopper can measure the required volume of solute and solvent accurately to ensure the accuracy of solution concentration. Can prevent the volatilization of substances or the entry of external impurities during the reaction, ensure the accuracy and safety of the reaction. It can be used as an intermediate container in separation and purification experiments such as extraction and distillation. Its scale can be used to accurately control the volumes of materials in different phases and facilitate separation operations.

In biological experiments:

Test tubes with graduations and ground-in glass stopper can be used to culture small amounts of microorganisms. Add an appropriate amount of culture medium to the test tube, insert the microbial strain, and seal it with a stopper to create a relatively stable growth environment. In some simple cell culture experiments, it can be used as a small-capacity culture container.

In medical testing:

Test tubes with graduations and ground-in glass stopper are used to store medical samples such as blood and urine. The sealed design prevents the sample from external contamination, and the graduation can easily record the volume of the sample. In drug quality testing, graduations can help accurately control the ratio of drugs and solvents to ensure the accuracy of testing.

In teaching experiments:

During the teaching process,teachers can use test tubes with graduations and stoppers stopper to conduct experimental demonstrations, allow students to intuitively observe chemical and biological experimental phenomena. Students can use glass-stoppered graduated test tubes to perform various experimental operations in experimental classes. Let students learn scientific knowledge in practice.