Which term is often used to indicate a volume measurement that includes free water along with liquids and sediment?

The term "Gross Observed Volume" (GOV) is used to indicate a volume measurement that includes not only the actual liquid being measured but also any free water, sediment, and other impurities present in the tank or container. This measurement gives a total volume, which can be crucial for the purposes of inventory management, billing, and regulatory compliance.

GOV is particularly important in the context of tankering operations because it allows for an accurate assessment of what is being transported, including unwanted materials that could affect the quality and usability of the cargo. Understanding this volume helps tankerman and operators make informed decisions regarding the handling and management of the liquids and ensure compliance with safety and environmental regulations.

In contrast, terms like Net Observed Volume (NOV) refer specifically to the measurement of usable liquid after subtracting the free water and sediment, while Effective Volume Measurement (EVM) and Actual Volumetric Measurement (AVM) may involve other types of corrections or definitions that do not emphasize the inclusion of free water and sediment. Thus, the distinction of GOV as encompassing everything measured in the tank makes it the correct choice in this context.