Editing Volumetric flask (section)

==Modifications==

Volumetric flasks are generally colourless but may be amber-coloured for the handling of light-sensitive compounds such as [[silver nitrate]] or [[vitamin A]].

A modification of the volumetric flask exists for dealing with large quantities of solids that are to be transferred into a volumetric vessel for dissolution. Such a flask has a wide mouth and is known as a ''Kohlrausch volumetric flask''. This kind of volumetric flask is commonly used in analysis of the sugar content in [[sugar beet]]s.

While conventional volumetric flasks have a single mark, industrial volumetric tests in [[analytical chemistry]] and [[food chemistry]] may employ specialized volumetric flasks with multiple marks to combine several accurately measured volumes.

A highly specialized kind of the volumetric flask is the ''Le Chatelier flask'' for use with the volumetric procedure in [[specific gravity]] determination.<ref>{{Citation
|title = ASTM C188 - 09 Standard Test Method for Density of Hydraulic Cement.
|url = http://www.astm.org/Standards/C188.htm}}</ref>