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AOCS Official Method Cd 16-81
Revised 2022
Solid Fat Content (SFC) by Low-Resolution Nuclear Magnetic Resonance, Indirect Method

This method describes procedures for the determination of the solid fat content (SFC) by low resolution nuclear magnetic resonance (NMR), using the indirect method. An alternative NMR method to determine the SFC, the direct method, is described in the AOCS Official Method Cd 16b-93.
The SFC-NMR method determines what percentage of all hydrogen nuclei (protons) in the test sample, composed of hydrogen nuclei in both liquid and solid phases, is due to hydrogen nuclei in the solid phase. This percentage is called the solid fat content.