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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. The long, narrow neck slows down the spreading of vapors and gases to the environment.
A test tube filled with water and upturned into a water-filled beaker is often used to capture gases, e.g. in electrolysis demonstrations.
Culture tubes are often used in Biology for handling and culturing all kinds of live organisms, such as molds, bacteria, seedlings, plant cuttings, etc.; and in medicine and forensics to store samples of blood or other fluids.
A test tube with a stopper is often used for temporary storage of chemical or biological samples.
Test tubes are usually held in special-purpose racks, clamps, or tongs. Some racks for culture tubes are designed to hold the tubes in a nearly horizontal position, so as to maximize the surface of the culture medium inside.
Test tubes are sometimes put to casual uses outside of lab environments, e.g. as flower vases or containers for spices.
What else can I help you with?
What is a test tube rack with drying posts used for?
To hold test tubes when collecting powders or observing it :)
What is another name for a test tube?
another name for test tube is culture tube or sample tube
What is used of tes tube rack?
A test tube rack is used to stand glass test tubes upright in. Glass test tubes have round bottoms, so need a rack to keep them upright. Otherwise, they would fall over and spill their contents.
What is a control test tube?
There are many uses of the electromagnet, it is used to invent generators and electric motors, used it to control the switch relay, use in practical industries, and even in an electric bell etc. Because the electromagnet is a type of magnet in which the magnetic field is produced by the electric current.
How high is 2 mL of water in a test tube?
It depends on what size test tube you are using.
What is a test tube clamp used for?
Clamping a test tube
What is test tube stand used for?
to hold the test tube
What is used to grip test tube?
Test tube holder
How is a test tube brush used in a laboratory?
Test Tube brushes are used to easily clean the test tubes .
What is the used of test tube holder?
use to hold test tube..
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.
What color tube is used for an AFP test?
A red tube with no anticoagulant is typically used for an AFP test.
What is a test tube cleaner used for?
A test tube cleaner is used as suggested -- it is used to clean test tubes. It is round, and has a modestly long handle so the bristles can reach the bottom of the test tube being cleaned.
The function of the test tube rack?
used to place the test tube . :D hahaha
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.
What test tube is used for CBC test?
The color of the tube that is most often used for hematology CBC tests are
What is a test tube rack?
A test tube rack is used to hold test tubes upright to keep them from spilling.
