Screw Cap Test Tubes

The screw cap test tubes can provide better sealing than ordinary test tubes, preventing leakage of substances inside the tube and contamination by external substances.

Material:Borosilicate glass.
Color: transparent/ amber.
Optional with scale/ without scale.

We can provide screw cap test tubes with 3 kinds of bottoms:

1. Flat bottom 2. Round bottom 3. Conical bottom.

For cap our user can choose aluminum(silver color) or bakelite(black color) caps;
For the inner padding, our user can choose PTFE or silicone material cccording to the needs of the experiments.

The most frequently used are Screw test tubes with scales, they apply to epidemic prevention stations, schools, and scientific research institutions. They are used in biological tests, blood tests, microbial cultures, and observations of reduction and decomposition in chemical reactions.

The advantage is that they have their scale and can directly read the measurement figures for the substances generated by the reaction to reduce the transfer procedures.

Main Application of Screw Cap Test Tubes with Scales:

1. Take liquid or solid reagents.
2. Heat a small amount of solid or liquid.
3. Prepare a small amount of gas reactor.
4. Collect a small amount of gas.
4. Dissolve a small amount of gas, liquid, or solid solute.
5. As a centrifuge tube.
6. As a reaction vessel with a small reagent at room temperature or heated.

Conical Bottom Screw Cap Test Tubes General Size Details:

For special designs, please contact us directly.

Glass Test Tube(Round Bottom)

Plastic Test Tube