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  • HYDROCARBON TYPES CHARACTERISTIC GROUPS IN OILS BY CLAY-GEL ABSORPTION CHROMATOG HYDROCARBON TYPES CHARACTERISTIC GROUPS IN OILS BY CLAY-GEL ABSORPTION CHROMATOGRAPHY: ASTM D2007EXPLANATIONThis test method is used for classifying oil samples of initial boiling point of at least 200° C into the hydrocarbon types of polar compounds, aromatics, and saturates, and recovery of representative ...
  • HYDROCARBON ANALYSIS OF PETROLEUM PRODUCTS HYDROCARBON ANALYSIS OF PETROLEUM PRODUCTS:GENERALThe determination of hydrocarbon types - saturates, olefins, and aromatics - in petroleum fractions is important in characterizing the quality of petroleum fractions as gasoline blending components and as feeds to catalytic reforming processes, as products ...
  • HOMOGENITY AND MISCIBILITY OF ENGINE OILS: ASTM D6922 HOMOGENITY AND MISCIBILITY OF ENGINE OILS: ASTM D6922EXPLANATIONIt is important that engine oils from different manufacturers be homogenous and miscible with each other, because operators of automotive engines often do not have prior knowledge of the manufacturer of the oil that is currently used in ...
  • HINDERED PHENOLIC ANTIOXIDANT IN HL TURBINE OILS BY LINEAR SWEEP VOLTAMMETRY: AS HINDERED PHENOLIC ANTIOXIDANT IN HL TURBINE OILS BY LINEAR SWEEP VOLTAMMETRY: ASTM D6810EXPLANATIONThis test method covers the voltammetric determination of hindered phenol antioxidants in new or used Type HL turbine oils in concentrations from 0.0075 wt. % up to concentrations found in new oils by measuring ...
  • HINDERED PHENOLIC AND AROMATIC AMINE ANTIOXIDANT CONTENT IN NON-ZINC TURBINE OIL HINDERED PHENOLIC AND AROMATIC AMINE ANTIOXIDANT CONTENT IN NON-ZINC TURBINE OILS BY LINEAR SWEEP VOLTAMMETRY: ASTM D6971EXPLANATIONThis test method covers the voltammetric determination of hindered phenol and aromatic amine antioxidants in new or used type non-zinc turbine oils in concentrations from ...
  • HIGH TEMPERATURE UNIVERSAL OXIDATION TEST FOR TURBINE OILS: ASTM D6514 HIGH TEMPERATURE UNIVERSAL OXIDATION TEST FOR TURBINE OILS: ASTM D6514EXPLANATIONDegradation of fluid lubricants because of oxidation or thermal breakdown can result in fluid thickening or in the formation of acids or insoluble solids and render the fluid unfit for further use as a lubricant. This test ...
  • HIGH TEMPERATURE STABILITY OF DISTILLATE FUELS: ASTM D6468 HIGH TEMPERATURE STABILITY OF DISTILLATE FUELS: ASTM D6468EXPLANATIONThis test method provides an indication of thermal oxidative stability of distillate fuels when heated to high temperatures that simulate those that may occur in some types of recirculating engine or burner fuel delivery systems. Results ...
  • HIGH TEMPERATURE DEPOSITS BY TEOST: ASTM D6335 HIGH TEMPERATURE DEPOSITS BY TEOST: ASTM D6335EXPLANATIONThe test method is designed to predict the high temperature deposit forming tendencies of an engine oil. This test method can be used to screen oil samples or as a quality assurance tool. It utilizes the thermo-oxidation engine oil simulation test ...
  • SEPARABILITY NUMBER OF HEAVY FUEL OILS BY OPTICAL SCANNING DEVICE: ASTM D7061 SEPARABILITY NUMBER OF HEAVY FUEL OILS BY OPTICAL SCANNING DEVICE: ASTM D7061EXPLANATIONThis procedure describes a rapid and sensitive method for estimating the stability reserve of an oil. The stability reserve is estimated in terms of a separability number, where a low value of separability number ...
  • HEAT OF COMBUSTION SPECIFIC HEAT OF AIRCRAFT TURBINE FUELS BY THERMAL ANALYSIS: HEAT OF COMBUSTION SPECIFIC HEAT OF AIRCRAFT TURBINE FUELS BY THERMAL ANALYSIS: ASTM D4816EXPLANATIONThis test method covers the determination of the specific heat of fuels by differential scanning calorimetry (DSC). These values are used in engineering calculations that relate to the manner in which ...