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- ASTM D4892 Standard Test Method for Density of Solid Pitch (Helium Pycnometer Me ASTM D4892 Standard Test Method for Density of Solid Pitch (Helium Pycnometer Method)4. Summary of Test Method4.1 The sample is pulverized and screened to a given fraction, then the volume of a weighed portion of the fraction is determined using a helium pycnometer.5. Significance and Use5.1 This test ...
- ASTM D4892 Standard Test Method for Density of Solid Pitch (Helium Pycnometer Me ASTM D4892 Standard Test Method for Density of Solid Pitch (Helium Pycnometer Method)1. Scope1.1 This test method covers the determination of pitch density by helium pycnometer. It is applicable at a range of room temperatures of 15 to 35°C.1.2 This standard does not purport to address all of the safety ...
- ASTM D5481 Standard Test Method for Measuring Apparent Viscosity at High-Tempera ASTM D5481 Standard Test Method for Measuring Apparent Viscosity at High-Temperature and High-Shear Rate by Multicell Capillary Viscometer12. Report12.1 Report the viscosity in millipascal seconds (mPa•s) to two decimal places and the test temperature (°C).13. Precision and Bias13.1 The precision ...
- ASTM D5481 Standard Test Method for Measuring Apparent Viscosity at High-Tempera ASTM D5481 Standard Test Method for Measuring Apparent Viscosity at High-Temperature and High-Shear Rate by Multicell Capillary Viscometer10. Procedure10.1 Bring the viscometer to the test temperature and allow test temperature to stabilize for at least 30 min. Because the viscometer uses only a small ...
- ASTM D5481 Standard Test Method for Measuring Apparent Viscosity at High-Tempera ASTM D5481 Standard Test Method for Measuring Apparent Viscosity at High-Temperature and High-Shear Rate by Multicell Capillary Viscometer6. Apparatus6.1 High-Temperature High-Shear (HTHS) Viscometer, consisting of several viscometer cells in a temperature-controlled block and including means for controlling ...
- ASTM D5481 Standard Test Method for Measuring Apparent Viscosity at High-Tempera ASTM D5481 Standard Test Method for Measuring Apparent Viscosity at High-Temperature and High-Shear Rate by Multicell Capillary Viscometer4. Summary of Test Method4.1 The viscosity of the test oil in any of the viscometric cells is obtained by determining the pressure required to achieve a flow rate ...
- ASTM D5481 Standard Test Method for Measuring Apparent Viscosity at High-Tempera ASTM D5481 Standard Test Method for Measuring Apparent Viscosity at High-Temperature and High-Shear Rate by Multicell Capillary Viscometer1. Scope1.1 This test method covers the laboratory determination of high-temperature high-shear (HTHS) viscosity of engine oils at a temperature of 150°C using a ...
- ASTM D5292 Standard Test Method for Aromatic Carbon Contents of Hydrocarbon Oils ASTM D5292 Standard Test Method for Aromatic Carbon Contents of Hydrocarbon Oils by High Resolution Nuclear Magnetic Resonance Spectroscopy11. Report11.1 Report the mole percent aromatic hydrogen atoms or the mole percent aromatic carbon atoms to one decimal place.12. Precision and Bias12.1 The precision ...
- ASTM D5292 Standard Test Method for Aromatic Carbon Contents of Hydrocarbon Oils ASTM D5292 Standard Test Method for Aromatic Carbon Contents of Hydrocarbon Oils by High Resolution Nuclear Magnetic Resonance Spectroscopy9. Procedures9.1 Three different procedures are described in this section for determining the aromatic hydrogen content, (see 9.6) Procedures A and B (see 9.7), and ...
- ASTM D5292 Standard Test Method for Aromatic Carbon Contents of Hydrocarbon Oils ASTM D5292 Standard Test Method for Aromatic Carbon Contents of Hydrocarbon Oils by High Resolution Nuclear Magnetic Resonance Spectroscopy6. Apparatus6.1 High-Resolution Nuclear Magnetic Resonance Spectrometer - A high-resolution continuous wave (CW) or pulse Fourier transform (FT) NMR spectrometer ...