SCREW CAPS FOR TEST TUBES

Screw caps for test tubes

Test tube caps are essential items in any laboratory working with liquid or solid samples. Their main function is to ensure that samples are protected and that experiments are carried out with maximum safety. At Pobel, we offer a wide range of options to suit different needs and types of test tubes, always ensuring the best protection.

What are test tube screw caps?

Test tube caps are used to seal test tubes securely, preventing liquid evaporation or external contamination. Depending on the type of experiment and tube material, there are different types of caps that offer specific features to keep samples in optimal conditions during the process.

Types of screw caps and lids available

Several types of test tube caps and lids are available, designed to meet different applications in the laboratory:

Rubber stoppers

Rubber stoppers are most commonly used when a tight seal is required, especially when working with liquids that must not evaporate or spill. These stoppers are resistant to many chemicals and can withstand high temperatures, making them ideal for testing under extreme conditions.

Plastic lids

Test tube lids made of plastic are lighter and more economical, ideal for short-term experiments or where disposable tubes are used. They are easy to handle and come in various sizes and colours, making sample identification easy.

Snap and screw caps

Snap-on caps are perfect for plastic test tubes, as they offer a simple and effective closure. Screw caps, on the other hand, provide a more secure seal, ideal for transport or prolonged storage of samples without risk of leakage.

Why use test tube caps?

The use of test tube caps ensures that samples are protected from external factors, such as contamination, and prevents possible spillage during experiments. They also help to keep the internal conditions of the tube stable, which is essential for reliable results in the laboratory.

Benefits of test tube caps in laboratories

Test tube caps offer multiple benefits for laboratories:

• Safety: they protect samples from contaminants and prevent accidents such as spills.
• Accuracy: They keep samples in a stable condition, which helps to obtain accurate results.
• Versatility: caps are available in a variety of materials and sizes, adapting to different types of test tubes and experimental applications.

Test tube stoppers at Pobel

At Pobel, we offer a wide selection of test tube stoppers, designed to ensure maximum safety and durability. Our stoppers are made of resistant materials that withstand everything from chemicals to high temperatures, guaranteeing optimum performance in every use.

Variety of sizes and materials

We have a wide range of test tube caps in different sizes and materials to ensure compatibility with all types of tubes, whether glass or plastic.

Compatibility with different types of tubes

Our test tube caps are compatible with tubes of different materials and sizes, ensuring that you can use them in any type of test without complications.

Tips for choosing the right lids and caps

When selecting the right test tube caps or stoppers, it is important to consider several aspects:

• Compatibility: make sure that the cap or stopper is compatible with the size and material of the test tube you will be using.
• Chemical resistance: check that the material of the stopper is suitable to withstand the chemicals you will be working with.
• Purpose of the experiment: if the experiment requires transport or prolonged storage, opt for screw caps or rubber stoppers to ensure a tighter seal.