ASTM D4171 Standard Specification for Fuel System Icing Inhibitors
6. Test Methods
6.1 Determine the properties enumerated in this specification in accordance with the following ASTM methods:
6.1.1 Relative Density - Determine the relative density (that is, specific gravity) at 20 °C or 25 °C with respect to water by a method accurate to the third decimal place. See Section 5 of Test Method D268, Test Method D4052, or Method A or B of Test Methods D891.
6.1.2 Color - Test Method D1209 or E450.
6.1.3 Distillation Range - Test Method D1078 using ASTM Solvents Distillation Thermometers (40C with a range from 72 °C to 126 °C for isopropanol) conforming to the requirements of Specification E1 or any other temperature measuring device that cover the temperature range of interest, such as thermocouples, thermistors, resistance temperature detectors (RTDs) or one conforming to Specification E2251 may be used that provides equivalent or better accuracy and precision than ASTM 40C.
6.1.4 Nonvolatile Matter - Test Method D1353.
6.1.5 Odor - Test Method D1296.
6.1.6 Water - Test Method D1364, E1064, or E203.
6.1.7 Heptane Miscibility - Test Method D1476.
6.1.8 Acidity - Test Method D1613.
6.1.9 Water Miscibility - Test Method D1722.
6.1.10 Flash Point - Test Methods D56, D93, or D3828.
7. Keywords
7.1 additives; aircraft fuel systems; aviation fuels; fuel system icing inhibitors; ice formation
