[ VCF = \exp\left( -\alpha_15 \Delta t \right) \cdot \left(1 - 0.5 \alpha_15^2 \Delta t^2 \right) ]
Implementing ASTM Table 54 in Excel requires more than a simple VLOOKUP into a static table. The 2004 API algorithm, based on thermal expansion coefficients derived from density at 15°C, provides superior accuracy and can be efficiently coded using either direct cell formulas or VBA functions. The Excel-based solution presented here achieves an accuracy within ±0.00005 relative to official API tables, meeting custody transfer standards. Engineers and analysts can confidently use this approach for daily volume corrections, provided they respect the valid input ranges and product classifications.
VCF is defined as the ratio of the volume of liquid at the observed temperature (t) to the volume at the reference temperature (t_ref = 15°C).
