Before revision: Based on accurate mass flow calculations it becomes possible, based upon the energy content of each gas component, to calculate energy flow measurement , i.e., AGA8 since each gas component contains different energy content.
After revision: Based on accurate mass flow calculations it becomes possible, based upon the energy content of each gas component, to calculate energy flow measurement , i.e., API 14.5 (GPA 2172) since each gas component contains different energy content.