Table of Contents
What is the function of the test tube?
The test tube is one of the most commonly used pieces of laboratory ware. Test tubes are the perfect shape and size to hold small amounts of substances, usually liquid, which are then manipulated in some way, such as being placed over the flame of a Bunsen burner.
What’s the difference between a test tube holder and a test tube rack?
We need a test tube rack to hold the all test tubes uprightly. It holds multiple test tubes at same time. This is test tube rack. Test tube holder is used for holding a test tube.
How do you use a test tube rack?
MATERIALS NEEDED TO PROPERLY USE A TEST TUBE -Test Tube Rack: Never leave a test tube on a counter. Always obtain a test tube rack before moving test tubes to your lab station. -Test Tube Holder: This instrument is only necesary when heating a test tube. Never touch a hot test tube.
How do you use a test tube?
Hold the test tube at an angle. Point the test tube away from yourself and all other people. Heat the test tube gently from the top of the substance being heated, and always wear safety googles.
What is the use of test tube brush in laboratory?
Test tube brushes are great for cleaning test tubes and other lab ware including tubing. Constructed of quality bristles mounted on a twisted galvanized wire the brush is tufted at the end for cleaning the bottom of a test tube.
What are the two uses of test tube?
Test tubes are used to hold, mix, and heat chemical experiments. They are used as homes for microorganisms when people want to culture (grow) them. They are also used as collections devices for things like blood samples.
How many types of test tube are there?
There are several material types of test tubes: glass, plastic, metal and ceramic. Glass and plastic are the most common while metal and ceramic are less common. There are several sub-types of glass and plastic test tubes.
What precaution should be considered when a test tube has been heated or being heated?
- Always wear safety glasses.
- Always point the test tube away from any other person in the lab.
- Heat the test tube being held at an angle so there is a way for the gases produced to escape safely.
- Heat the test tube at the top of the solution not the bottom where a gas bubble can cause an explosion.
What are the three main function of test tube?
Test tubes are widely used by chemists to hold, mix, or heat small quantities of solid or liquid chemicals, especially for qualitative experiments and assays. Their round bottom and straight sides minimize mass loss when pouring, make them easier to clean, and allow convenient monitoring of the contents.
What are tubes used in laboratory?
Blood Collection Tubes
|Tube cap color||Additive||Common laboratory tests|
|Lavender or pink||Potassium EDTA||Hematology and blood bank|
|Gray||Sodium fluoride, and sodium or potassium oxalate||Glucose (especially when testing will be delayed), blood alcohol, lactic acid|
What are the functions of test tube rack only?
Test tube racks are laboratory equipment used to hold upright multiple test tubes at the same time.
What is a test tube rack used for?
Test tube racks are pieces of equipment that are used to hold upright multiple test tubes at the same time. It is most commonly used when various different solutions are needed to work with simultaneously, for safety reasons, for safe storage of test tubes, and to ease the transport of multiple tubes.
What is an use for a test tube support rack?
Convenience and Safety in Performing Experiments. Many science fair projects employ test tubes in various ways.
What does test tube rack mean?
.A test tube rack keeps tubes in place when they are not being actively used. It also allow for easy organization during experiments. All of the samples from one particular place or containing one particular substance can be placed on the same rack. Finally, test tube racks allow for good maintenance of the equipment.