scope:

7.1.1 Scope

This section describes how to use correctly mercury-in-glass tank thermometers and their multiple configurations to accurately determine the temperatures of hydrocarbon liquids under static conditions. These temperatures are used to convert hydrocarbon liquid volumes to a base standard temperature. Other methods, equipment, and procedures for temperature determination are described in API Chapter 7, Sections 2 and 3. The method and equipment selected for temperature determination are left to the discretion of the parties involved.