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.
Flasks by Size. In today's competitive and fast growing hip flask market size does matter. Hip flasks generally range from 1oz (about 1 shot) all the way up to 64oz (1/2 Gallon) though the most common sizes are 6oz and 8oz. The 6oz hip flask seems to be most common with women while the 8oz seems to be most common with men.