I read today that the FAA has extended the timeline in which it will be inspecting all charter operations specifications section A008 for compliance with operational control requirements.
We have three sizes of volumetric flasks to choose from: 100, 250 and 500 milliliters and they feature a single etched line or graduation to denote the fill-to-line at the chosen volume. Each size flask is specifically made for preparing solutions that correspond to its nominal value. For example, a 250 ml volumetric flask is the appropriate choice only when preparing a solution with a total volume of 250 ml.
Updated February 15, 2017. A volumetric flask is a piece of laboratory glassware that is used to prepare a chemical solution. It is used to make up a solution to a known volume. Volumetric flasks measure volumes much more precisely than beakers or Erlenmeyer flasks. A volumetric flask is characterized by having a bulb and a long neck.