Test Tube

A test tube is a cylindrical glass or plastic container used in laboratories for mixing, heating, or holding small amounts of substances. It is a fundamental piece of lab equipment widely used in chemical and biological experiments. Test tubes are essential for conducting reactions, observing changes, and performing various analytical procedures. They are available in various sizes and materials, making them suitable for a wide range of applications.

Specifications:

• Material:
  • Typically made from high-quality borosilicate glass or polypropylene plastic.
  • Borosilicate glass test tubes are heat-resistant and suitable for high-temperature applications.
• Sizes:
  • Common sizes range from 10 mL to 100 mL or more, with varying diameters.
• Dimensions:
  • Length and diameter can vary based on the specific application and design.
• Rim Type:
  • Bead rim or smooth rim to facilitate safe handling and pouring.
• Graduations:
  • Some test tubes feature graduated markings for measuring liquid volumes.
• Capacities:
  • Available in various capacities, often from 5 mL to 25 mL, but can go up to 100 mL or more for specific uses.
• Usage:
  • Suitable for mixing chemicals, heating solutions, and storing samples.
  • Can be used with stoppers or caps for temporary storage.
• Compatible Accessories:
  • Often used with test tube racks, holders, and stoppers for organization and safety.
• Autoclavable:
  • Many glass test tubes are autoclavable, making them suitable for sterilization in microbiology applications.

Applications:

• Chemical Reactions: Conducting small-scale chemical reactions and observing changes.
• Biological Experiments: Used in microbiology and biochemistry for culturing microorganisms or enzyme reactions.
• Educational Use: Widely used in educational laboratories for demonstrations and student experiments.
• Analytical Procedures: Suitable for performing qualitative and quantitative analyses in chemistry labs.

Safety and Handling:

• Handle with care to prevent breakage, especially for glass test tubes.
• Always use appropriate personal protective equipment (PPE) such as gloves and goggles when working with chemicals.
• Follow proper procedures for heating and cooling to avoid thermal shock.