ASTM D7348

Loss on Ignition (LOI) of Solid Combustion Residues

Applicability: ASTM D7348 is a standard test method used to determine the loss on ignition (LOI) of solid combustion residues. This test method helps assess the mass loss of a sample when heated in an air or oxygen atmosphere, which can indicate the presence of moisture, carbon, sulfur, and other volatile components. The standard is particularly useful in industries like cement manufacturing to evaluate the quality and composition of materials.

Purpose: The purpose of this procedure is to quantify the mass loss of a solid combustion residue when heated, providing insights into its composition and potential impurities.  The LOI value can indicate the presence of impurities, excess organic materials, or other factors that might affect the material’s properties.