This figure of 7320 SCFM indicates the volumetric flow rate of the gas through the pipe had
it been allowed to expand to atmospheric pressure and cool to ambient temperature. Although we
know these are definitely not the same conditions inside the gas pipe, the correction of actual
volumetric flow measurement to these imagined conditions allows us to express gas flow rates in an
equitable fashion regardless of the process line pressure or temperature. To phrase this in colloquial
terms, standardized volumetric flow figures allow us to compare different process gas flow rates
on an “apples to apples” basis, instead of the “apples to oranges” problem we faced earlier where
flowmeters would register different volumetric flow values because their line pressures and/or flowing
temperatures differed