1. Speight JG. Handbook of petroleum product analysis. second ed.
2. ASTM I. ASTM D664-17a. Standard test method for acid number of petroleum products by potentiometric titration.
3. ASTM I. ASTM D3242-11(2017). Standard test method for acidity in aviation turbine fuel.
4. ASTM I. ASTM D974-14e2. Standard test method for acid and base number by color-indicator titration.
5. The lubricity of diesel fuels;Wei;Wear,1986