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Assuming you're talking about a wooden or metal 'rack' which is capable of holding a few test-tubes. They are simply a safe way to allow test tubes to stand upright without falling over. A hot test tube, or one holding corrosive chemicals - is safer supported by a rack - than being held in someone's hand !

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13y ago

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Related Questions

What laboratory apparatus used to hold the test tube in distillation?

A clamp or test tube holder is typically used to hold a test tube in distillation setups to secure it in place during the distillation process.


What is a test tube holder or rack and what are its uses?

A test tube holder or rack is used in a laboratory to hold or support test tubes containing chemicals or other contents awaiting further operations. Although it is called a test tube holder, it is also used to hold/support pipettes, etc. Since a test tube has a rounded bottom, it cannot stand by itself; the rack is a convenient and necessary piece of laboratory equipment for the storage of test tubes.


What are the functions of the test tube holder?

The test tube holder has many functions. It can be used to hold test tubes, making it easy to investigate the contents of the test tubes. These holders can also be used to hold stirring rods used in the laboratory and pipettes.


What is used to grip test tube?

Test tube holder


What is the used of test tube holder?

use to hold test tube..


What do you use a test tube holder for?

Like the function of a beaker; to hold chemicalsA test tube is another useful science equipment used in experiments. A test tube is used:-1. to carry solids or liquids in small quantity.2. to do experiments, such as knowing the nature of the substance poured in it( acidic, basic or neutral) .basically, test tube's function is to carry substances in science labs.


How is a test tube brush used in a laboratory?

Test Tube brushes are used to easily clean the test tubes .


What is a testube holder?

A test tube holder is a piece of laboratory equipment designed to securely hold test tubes while they are being handled or stored. It typically consists of a spring-loaded clamp that can accommodate test tubes of different sizes, and a handle for easy manipulation.


What is used to hold a test tube when heating over a Bunsen burner?

A test tube holder or test tube clamp is used to hold a test tube when heating it over a Bunsen burner. The holder provides a safe way to hold the test tube without the risk of burning yourself.


Uses of test tube in laboratory apparatus?

used to chemical test


What would you use if you were holding and heating a test tube?

When heating a test tube, you would use a test tube holder. It can also be used to hold/ support pipettes, etc. http://www.answers.com/mt/test-tube-holder


What is used for holding a test tube in place when the tube is hot or should not be touched?

A test tube holder, also known as test tube clamp or test tube rack, is used to hold a test tube in place when the tube is hot or should not be touched. It allows safe handling of test tubes during heating or when conducting chemical reactions.