[ \textCarbonate (%) = \frac\textCO_2 \text pressure/volume reading\textDry soil mass \times \textCalibration factor ]
D4373 – 14 (or current active version: 2021) astm d 4373
is the standard test method for the rapid determination of carbonate content in soils and soft rock. Primarily used in geotechnical engineering and geology, it provides a quick, "calcite equivalent" index to help characterize marine soils and other calcareous materials. Overview of the Method it provides a quick
This test method covers the quantitative determination of the carbonate content (primarily calcium carbonate, CaCO₃) in soils, using a gasometric method. It is suitable for both fine-grained and coarse-grained soils, as well as soft rock and aggregate materials. CaCO₃) in soils