This standard specifies the test method for water-soluble components in aviation gasoline and aviation turbine fuel and the determination of the influence of these components on volume change and oil-water interface. This standard uses the International System of Units [SI] units. The use of this standard may involve hazardous materials, operations and equipment. This standard does not provide suggestions for all safety issues related to this, and users are responsible for formulating corresponding safety and protection measures before using this standard, and clarifying its limited scope of application.