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  • ASTM D6045 Color of Petroleum Products by the Automatic Tristimulus Method ASTM D6045 Color of Petroleum Products by the Automatic Tristimulus Method11. Report11.1 Report the following information:11.1.1 The color of the sample as either Saybolt color to the nearest whole number or ASTM color according to the following procedure: (1) for results with decimal numerical values ...
  • ASTM D6045 Color of Petroleum Products by the Automatic Tristimulus Method ASTM D6045 Color of Petroleum Products by the Automatic Tristimulus Method10. Procedure10.1 Calibration - Prepare the spectrophotometer or tristimulus filter colorimeter for operation following the manufacturer's instructions.10.1.1 Periodic measurement of suitable Test Method D1500 or Test Method D156, ...
  • ASTM D6045 Color of Petroleum Products by the Automatic Tristimulus Method ASTM D6045 Color of Petroleum Products by the Automatic Tristimulus Method6. Apparatus6.1 Either instrument described in 6.1.1 or 6.1.2 may be used in this test method.6.1.1 Spectrophotometer - The spectrophotometer used in the measurement shall satisfy the following specifications:6.1.1.1 Wavelength ...
  • ASTM D6045 Color of Petroleum Products by the Automatic Tristimulus Method ASTM D6045 Color of Petroleum Products by the Automatic Tristimulus Method4. Summary of Test Method4.1 The sample is poured into the glass sample container, and the container is placed into the light path of the automatic instrument. A transmittance measurement is performed in order to determine the ...
  • ASTM D6045 Color of Petroleum Products by the Automatic Tristimulus Method ASTM D6045 Color of Petroleum Products by the Automatic Tristimulus Method1. Scope1.1 This test method covers the automatic determination of color of a wide variety of petroleum products such as undyed motor and aviation gasoline, aviation turbine fuels, naphthas, kerosine, pharmaceutical white oils, ...
  • ASTM D976 Test Methods for Calculated Cetane Index of Distillate Fuels ASTM D976 Test Methods for Calculated Cetane Index of Distillate Fuels6. Precision6.1 Correlation of index values with ASTM cetane number is dependent to a great extent upon the accuracy of determination of both API gravity and midboiling point.6.2 Within the range from 30 to 60 cetane number, the expected ...
  • ASTM D976 Test Methods for Calculated Cetane Index of Distillate Fuels ASTM D976 Test Methods for Calculated Cetane Index of Distillate Fuels4. Equation for Calculated Cetane Index4.1 The Calculated Cetane Index is determined from the following equation:where:G = API gravity, determined by Test Method D287 or D1298,M = mid-boiling temperature, °F, determined by Test Method ...
  • ASTM D976 Test Methods for Calculated Cetane Index of Distillate Fuels ASTM D976 Test Methods for Calculated Cetane Index of Distillate Fuels1. Scope1.1 The Calculated Cetane Index formula represents a means for directly estimating the ASTM cetane number of distillate fuels from API gravity and mid-boiling point. The index value, as computed from the formula, is termed ...
  • ASTM D3348 Rapid Field Test for Trace Lead in Unleaded Gasoline ASTM D3348 Rapid Field Test for Trace Lead in Unleaded GasolineASTM D3348 Standard Test Method for Rapid Field Test for Trace Lead in Unleaded Gasoline (Colorimetric Method)10. Quality Control10.1 Confirm the performance of the apparatus or the procedure, or both, each day it is in use by analyzing a ...
  • ASTM D3348 Rapid Field Test for Trace Lead in Unleaded Gasoline ASTM D3348 Rapid Field Test for Trace Lead in Unleaded GasolineASTM D3348 Standard Test Method for Rapid Field Test for Trace Lead in Unleaded Gasoline (Colorimetric Method)9. Procedure9.1 Prepare the sample in accordance with the directions given in 8.1.1-8.1.5.NOTE 9 - Short form instructions are outlined ...