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  • ASTM D1840 Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels ASTM D1840 Test Method for Naphthalene Hydrocarbons in Aviation Turbine FuelsASTM D1840 Standard Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels by Ultraviolet Spectrophotometry13. Report13.1 Numerical values of volume percent naphthalene are reported to the nearest 0.01 %.14. Reference ...
  • ASTM D1840 Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels ASTM D1840 Test Method for Naphthalene Hydrocarbons in Aviation Turbine FuelsASTM D1840 Standard Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels by Ultraviolet Spectrophotometry12. Calculations12.1 Calculate the mass percentage of naphthalenes in the sample as follows:Naphthalenes, ...
  • ASTM D1840 Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels ASTM D1840 Test Method for Naphthalene Hydrocarbons in Aviation Turbine FuelsASTM D1840 Standard Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels by Ultraviolet Spectrophotometry11. Procedure B - Alternative 100-mL Dilution11.1 Discussion - The incorporation of the single dilution procedure ...
  • ASTM D1840 Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels ASTM D1840 Test Method for Naphthalene Hydrocarbons in Aviation Turbine FuelsASTM D1840 Standard Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels by Ultraviolet Spectrophotometry10. Procedure A - Serial DilutionNOTE 4 - The user may use alternative Procedure B if preferred.10.1 For ...
  • ASTM D1840 Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels ASTM D1840 Test Method for Naphthalene Hydrocarbons in Aviation Turbine FuelsASTM D1840 Standard Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels by Ultraviolet Spectrophotometry9. Calibration and Standardization9.1 Instead of direct calibration of the spectrophotometer with known naphthalenes, ...
  • ASTM D1840 Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels ASTM D1840 Test Method for Naphthalene Hydrocarbons in Aviation Turbine FuelsASTM D1840 Standard Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels by Ultraviolet Spectrophotometry7. Apparatus7.1 Spectrophotometer, equipped to measure the absorbance of solutions in the spectral region ...
  • ASTM D1840 Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels ASTM D1840 Test Method for Naphthalene Hydrocarbons in Aviation Turbine FuelsASTM D1840 Standard Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels by Ultraviolet Spectrophotometry4. Summary of Test Method4.1 The total concentration of naphthalenes in jet fuels is determined by measurement ...
  • ASTM D1840 Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels ASTM D1840 Test Method for Naphthalene Hydrocarbons in Aviation Turbine FuelsASTM D1840 Standard Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels by Ultraviolet Spectrophotometry1. Scope1.1 This test method covers the determination, by ultraviolet spectrophotometry, of the total concentration ...
  • ASTM D1839 Standard Test Method for Amyl Nitrate in Diesel Fuels ASTM D1839 Standard Test Method for Amyl Nitrate in Diesel Fuels12. Precision and Bias12.1 Precision - The precision of this test method as obtained by statistical analysis of interlaboratory test results is as follows:12.1.1 Repeatability - The difference between successive test results, obtained by ...
  • ASTM D1839 Standard Test Method for Amyl Nitrate in Diesel Fuels ASTM D1839 Standard Test Method for Amyl Nitrate in Diesel Fuels10. Procedure10.1 Weigh into a separatory funnel a sample of diesel fuel to the nearest 0.1 mg, not exceeding 2 mL (Note 4), and not containing more than 1.0 mg of amyl nitrate. Add 2 mL of the m-xylenol solution and shake thoroughly. Add ...