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.
This adapter precisely fits the 32 and 40 ounce stainless steel Hydro Flask bottles in its major ID. All other sizes* of Hydro Flask fit in the next smaller step down, also a precise, secure fit. ... Read more... * except the 64 ounce wide, True Pint and the two food sizes.