Beaker (laboratory equipment)
In laboratory equipment, a beaker is generally a cylindrical container with a flat bottom.A common use for polypropylene beakers is gamma spectral analysis of liquid and solid samples.However, when in use, beakers may be covered by a watch glass to prevent contamination or loss of the contents, but allowing venting via the spout.Beakers are often graduated, that is, marked on the side with lines indicating the volume contained.These marks are not intended for obtaining a precise measurement of volume (a graduated cylinder or a volumetric flask would be a more appropriate instrument for such a task), but rather an estimation.
(B) A tall-form or Berzelius beaker
(C) A flat beaker or crystallizer
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