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2. Laboratory rubber stopper - Wikipedia

   en.wikipedia.org/wiki/Laboratory_rubber_stopper

   A laboratory rubber stopper or a rubber bung or a rubber cork is mainly used in chemical laboratories in combination with flasks and test tube and also for fermentation in winery. [ 1 ] [ 2 ] [ 3 ] Generally, in a laboratory , the sizes of rubber stoppers can be varied up to approximately 16 sizes and each of it is specific to certain type of ...

3. Test tube - Wikipedia

   en.wikipedia.org/wiki/Test_tube

   A boiling tube is a large test tube intended specifically for boiling liquids. A test tube filled with water and upturned into a water-filled beaker is often used to capture gases, e.g. in electrolysis demonstrations. A test tube with a stopper is often used for temporary storage of chemical or biological samples.

4. Stopper (plug) - Wikipedia

   en.wikipedia.org/wiki/Stopper_(plug)

   A glass stopper is often called a "ground glass joint" (or "joint taper"), and a cork stopper is called simply a "cork". Stoppers used for wine bottles are referred to as "corks", even when made from another material. [citation needed] A common every-day example of a stopper is the cork of a wine bottle.

5. Vacutainer - Wikipedia

   en.wikipedia.org/wiki/Vacutainer

   A range of Vacutainer tubes containing blood. A vacutainer blood collection tube is a sterile glass or plastic test tube with a colored rubber stopper creating a vacuum seal inside of the tube, facilitating the drawing of a predetermined volume of liquid. Vacutainer tubes may contain additives designed to stabilize and preserve the specimen ...

6. Serum-separating tube - Wikipedia

   en.wikipedia.org/wiki/Serum-separating_tube

   These tubes should be used with care when measuring drug or hormone levels because the drug or hormone may diffuse from the serum into the gel, causing a reduction in measured level. The gel in SST II tubes (which appears slightly less opaque) is supposed [weasel words] to have less effect on drug levels in serum. [citation needed]

7. US FDA flags shortage of Becton Dickinson's blood test tubes

   www.aol.com/news/us-fda-flags-shortage-becton...

   (Reuters) - The U.S. Food and Drug Administration issued an alert on Wednesday to laboratories and healthcare providers of a shortage of Becton Dickinson' blood test tubes used in diagnosing ...