PEROXIDE NUMBER OF AVIATION TURBINE FUELS: ASTM D3703
EXPLANATION
The magnitude of the peroxide number is an indication of the quantity of oxidizing constituents present in the sample. Deterioration of turbine fuel results in the formation of the peroxides and other oxygen-carrying compounds. The peroxide number measures those compounds that will oxidize potassium iodide. The determination of peroxide number of aviation turbine fuel is important because of the adverse effects of peroxides upon certain elastomers in the fuel system.
TEST SUMMARY
The sample is dissolved in 1,1,2-trichloro-1,2,2-trifluoro-ethane, and is contacted within an aqueous potassium iodide solution. The peroxides present are reduced by the potassium iodide. An equivalent amount of iodine is released which is titrated with standard sodium thiosulfate solution using a starch indicator.
TEST PRECISION
Repeatability: 0.15X
Reproducibility: Not determined
Bias has not been determined.
