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VAPOR PRESSURE OF CRUDE OIL: ASTM D6377
VAPOR PRESSURE OF CRUDE OIL: ASTM D6377EXPLANATIONVapor pressure of crude oil at various vapor-liquid ratios is an important physical property for shipping and storage. This test method covers the use of automated vapor pressure instruments to determine the vapor pressure of crude oils at temperatures ...
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VAPOR LIQUID RATIO TEMPERATURE OF FUELS: ASTM D5188
VAPOR LIQUID RATIO TEMPERATURE OF FUELS: ASTM D5188EXPLANATIONThe tendency of a fuel to vaporize in automotive engine fuel systems is indicated by the vapor-liquid ratio of the fuel. Automotive fuel specifications generally include this ratio temperature. This test method is applicable to samples for ...
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VAPOR LIQUID RATIO OF FUELS: ASTM D2533
VAPOR LIQUID RATIO OF FUELS: ASTM D2533EXPLANATIONThe tendency of a fuel to vaporize in common automobile fuel systems is indicated by the vapor-liquid ratio of that fuel at conditions approximating those in critical parts of the fuel systems. Dry glycerol can be used as the containing liquid for nonoxygenated ...
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VANADIUM IN HEAVY FUEL OIL: ASTM D1548
VANADIUM IN HEAVY FUEL OIL: ASTM D1548(Equivalent Test Method: AFNOR M07-027)EXPLANATIONVanadium in fuels can form low melting compounds that are severely corrosive to metal parts. This test method covers the determination of 0 to 350 mg/kg of vanadium in heavy fuel oils, and is widely cited in commercial ...
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UNSULFONATED RESIDUE OF OILS: ASTM D483
UNSULFONATED RESIDUE OF OILS: ASTM D483EXPLANATIONThis test method is useful for distinguishing between oils that are adaptable to various types of spraying application, with a higher sulfonated oil being required for leaf spraying as compared to dormant vegetation application. Since the relationship ...
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ULTRAVIOLET (UV) ABSORBANCE OF PETROLEUM PRODUCTS: ASTM D2008
ULTRAVIOLET (UV) ABSORBANCE OF PETROLEUM PRODUCTS: ASTM D2008EXPLANATIONThe absorbance of liquids and the absorptivity of liquids and solids at specified wavelengths in the ultraviolet region (220 to 400 nm) are useful in characterizing petroleum products. Examples of the application of this test method ...
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TRANSITION TEMPERATURES OF PETROLEUM WAXES BY DSC: ASTM D4419
TRANSITION TEMPERATURES OF PETROLEUM WAXES BY DSC: ASTM D4419EXPLANATIONSince petroleum wax is a mixture of hydrocarbons with different molecular weights, its transitions occur over a temperature range. This test method measures the transition temperatures of petroleum waxes, including microcrystalline ...
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TOTAL INHIBITOR CONTENT OF LIGHT HYDROCARBONS: ASTM D1157
TOTAL INHIBITOR CONTENT OF LIGHT HYDROCARBONS: ASTM D1157EXPLANATIONp-tertiary-butyl catechol (TBC) is commonly added to commercial butadiene in amounts of 50 to 250 mg/kg as an oxidation inhibitor. This test method is suitable for use by both producers and users of butadiene. In general, all phenols ...
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TORQUE, LOW TEMPERATURE OF GREASE LUBRICATED WHEEL BEARINGS: ASTM D4693
TORQUE, LOW TEMPERATURE OF GREASE LUBRICATED WHEEL BEARINGS: ASTM D4693EXPLANATIONThis test method determines the extent to which a test grease retards the rotation of a specially manufactured, spring loaded, automotive type wheel bearing assembly when subjected to low temperatures. Torque values, calculated ...
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TORQUE, LOW TEMPERATURE OF BALL BEARING GREASE: ASTM D1478
TORQUE, LOW TEMPERATURE OF BALL BEARING GREASE: ASTM D1478EXPLANATIONThis test method covers the determination of the extent to which a grease retards the rotation of a slow speed ball bearing by measuring starting and running torques at low temperatures (< -20° C or 0 ° F). This test method has ...
