Everything about Test Tube totally explained
A
test tube, also known as a
culture tube, is a piece of
laboratory glassware composed of a finger-like length of
glass tubing, open at the top, with a rounded U-shaped bottom. Often, the top features a flared lip. This is to aid pouring of a liquid from the test tube to a
beaker. A distinction between test tube and culture tube is often made, calling a tube with a lip a test tube and one without a lip a culture tube.
Construction and uses
Test tubes are available in a multitude of lengths and widths to serve a varying number of needs. They are typically used by
chemists to retain multiple discrete samples of materials, usually liquids, during chemical procedures and experiments, and are designed to allow easy heating of these samples. Often, test tubes are constructed of expansion-resistant glasses such as
Pyrex, and can usually be held in a flame such as that produced by a
bunsen burner. A
boiling tube is, however, preferred when heating samples for any length of time. It is used to hold chemicals.
Test tubes made from plastics are formed using injection molding. Injection molding is a process in which plastic is heated and then injected, under pressure, into a test tube mold commonly made from metal.
Variations
Further Information
Get more info on 'Test Tube'.
|
External Link Exchanges
Do you know how hard it is to get a link from a large encyclopaedia? Well we're different and will prove it. To get a link from us just add the following HTML to your site on a relevant page:
<a href="http://test_tube.totallyexplained.com">Test tube Totally Explained</a>
Then simply click through this link from your web page. Our crawlers will verify your link, extract the title of your web page and instantly add a link back to it. If you like you can remove the words Totally Explained and embed the link in article text.
As long as your link remains in place, we'll keep our link to you right here. Please play fair - our crawlers are watching. Your site must be closely related to this one's topic. Any kind of spamming, dubious practises or removing the link will result in your link from us being dropped and, potentially, your whole site being banned. |
