Many uses as a vessle container) just like a cup but better for heating solutions in. and centrifuging. Make good crack cookers or pipes too
In microbiology it is mainly used for either serial dilution and for slant prepration for culturing microbes
To hold test tubes. LOL
when was test tube first made,when and who?
test tube is classified in to various types namely hard test tube ,boiler test tube,20 ml test tube
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.
According to the American Heritage Dictionary of the English Language, a test tube is a "clear, cylindrical glass tube usually open at one end and rounded at the other, used in laboratory experimentation."A test tube can be used to store chemicals that are dangerous to skin,or be connected to other lab equipment for experiments. In this case, it is usually to collect a useful product.
a test tube rock is used to measure liquids
used to chemical test
To hold test tubes. LOL
A test tube rack is used to hold up test tubes. This is so they do not tip over and spill what is in them.
To hold your test tubes in, or to keep them upright.
Test tube brush=use for cleaning test tubes
Chemists, biologists.
used to hold small amounts of solution.
A test tube brush is a brush that cleans up your test tube when it is wet or messy.A test tube brush is used to easily clean the inside of a test tube.A test tube brush is a couple of wires spun together with bristles on one end in the shape of a test tube. They come in all different sizes and materials for all different size test tubes and uses.
Test tube stands have a very simple use. They are used to hold test tubes during experiments to prevent them from falling over and spilling.
A test tube holder is a device to ...wait for it...hold test tubes ! ;-) Usually a rack or clamp that keeps them upright (& full if in use).
when was test tube first made,when and who?