Together these 4 volumes provide 670 standards, including specifications and test methods for fuels, oils, lubricants, and solvents. They feature standards for the development and use of alternative diesel fuels and diesel fuel blend components, including biodiesel, one of the most successful new blend components. These volumes also feature standard procedures for evaluating the properties of motor, diesel, automotive spark-ignition engine fuel, ethanol, aviation fuels, solvent hexane, and naphtha. Standards cover distillate and residual fuel oil, kerosine, and illuminating oils, and set down procedures for evaluating such properties as carbon residue, viscosity, cloud point, density, flash point, and sulfur content. Other subjects include natural and liquefied petroleum, pure light hydrocarbons, crude petroleum, wax and petrolatum, and hydraulic fluids. Tests and practices for evaluating the properties of film lubricants, lubricating greases, lubricating oil, used oils, cutting oils, and turbine oils also appear in these volumes.