Buyers must prioritize the Total Fatty Matter (TFM) content, which should typically be above 95% for high-quality industrial applications. Key chemical markers include the Iodine Value (IV), which determines the degree of unsaturation and oxidative stability, and the Saponification Value, which indicates the average molecular weight of the fatty acids. Additionally, ensure the Titer Value (solidification point) aligns with your specific manufacturing temperature requirements, and verify that Moisture and Impurities (M&I) are kept below 1.0% to prevent degradation during storage.