- With Interchangeable Stopper
| PART No. | Height x O.D.(mm) | Stopper Size | PACK Qty. |
| 7480-100 | 100 x 12 | 10/19 | 100 |
| 7480-125 | 125 x 15 | 12/21 | 100 |
| 7480-150 | 150 x 18 | 14/23 | 100 |
| 7480-150-A | 150 x 25 | 19/26 | 100 |
| 7480-200 | 200 x 25 | 19/26 | 100 |
| 7480-200-A | 200 x 32 | 24/29 | 100 |
| 7480-200-B | 200 x 38 | 24/29 | 100 |
Here are some common uses of test tubes with interchangeable stoppers:
- Storage and Containment:
- Test tubes with stoppers are often used for storing and containing small amounts of liquids or solid samples. The stopper helps prevent evaporation or contamination of the contents.
- Reactions and Mixtures:
- Test tubes are commonly used for small-scale chemical reactions. The stopper can be used during reactions to contain gases produced or to prevent the entry of air or contaminants.
- Heating and Boiling:
- Test tubes can be placed in a water bath or heated directly over a flame. The stopper helps trap heat and can prevent splattering of contents. However, it’s important to use stoppers that are heat-resistant.
- Gas Collection:
- Test tubes with stoppers are used for collecting and measuring gases produced in chemical reactions. The stopper allows for the controlled capture of gases.
- Culturing Microorganisms:
- In microbiology, test tubes with stoppers can be used for culturing microorganisms. The stopper allows for a semi-sealed environment, facilitating the growth of bacteria or other microorganisms.
- Transportation:
- Test tubes are often used to transport small amounts of liquid samples from one location to another. The stopper ensures that the contents do not spill during transportation.
- Extraction and Filtration:
- Test tubes can be used for extracting soluble components from solid samples or for small-scale filtration experiments. The stopper helps control the flow of liquids during these processes.
- Centrifugation:
- Test tubes with stoppers are compatible with centrifugation equipment. The stopper helps secure the contents during centrifugation, separating components based on density.
- Freezing and Cooling:
- Test tubes with stoppers can be used for freezing or cooling samples in a controlled manner. The stopper helps prevent ice formation and provides a secure closure.
- Measurement and Observation:
- Test tubes with stoppers are often used for making visual observations or measurements. The stopper can be removed for easy access to the contents.
