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ASTM D381 Existent Gum Content Tester, Air Method
KN-381A Existent Gum Content Tester (Air Method) conforms to ASTM D381 Standard Test Method for Gum Content by Jet Evaporation. When testing motor gasoline, a 50±0.5ml quantity of fuel is evaporated under controlled conditions of temperature and flow of air. For motor gasoline, the residue is weighed before and after extracting with heptane and the results reported as milligrams per 100ml.
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ASTM D94 Saponification Number Of Petroleum Products
A known mass of the sample is dissolved in a suitable solvent, such as butanone (methylethylketone), xylenes, or Stoddard Solvent, or a combination thereof (Warning— Extremely flammable. Vapors can cause flash fire), and is heated with a known amount of alcoholic potassium hydroxide (KOH). The excess alkali is titrated with standard acid, and the saponification number is calculated.
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ASTM D1742 Oil Separation From Lubricating Grease
When a lubricating grease separates oil, the remaining composition increases in consistency. This can affect the ability of the product to function as designed
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Four Ball Wear Tester
This test method, used for specification purposes, differentiates between lubricating fluids having low, medium, and high level of extreme-pressure properties. The user of this method should determine to his own satisfaction whether results of this test procedure correlate with field performance or other bench test machines.
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ASTM D5708 ICP for Crude Oils and Residual Fuels
When fuels are combusted, vanadium present in the fuel can form corrosive compounds. The value of crude oils can be determined, in part, by the concentrations of nickel, vanadium, and iron. Nickel and vanadium, present at trace levels in petroleum fractions, can deactivate catalysts during processing. These test methods provide a means of determining the concentrations of nickel, vanadium, and iron.
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ASTM D2163 Hydrocarbons In LPG By GC
The hydrocarbon component distribution of liquefied petroleum gases and propene mixtures is often required for end-use sale of this material. Applications such as chemical feed stocks or fuel require precise compositional data to ensure uniform quality. Trace amounts of some hydrocarbon impurities in these materials can have adverse effects on their use and processing.
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ASTM D7111 ICP for Middle Distillate Fuels
Trace elemental analysis is used to indicate the level of contamination of middle distillate fuels. Trace metals in turbine fuels can cause corrosion and deposition on turbine components at elevated temperatures. Some diesel fuels have specification limit requirements for trace metals to guard against engine deposits. Trace level copper in middle distillate aviation turbine fuel can significantly accelerate thermal instability of the fuel leading to oxidation and production of detrimental insoluble deposits in the engine.
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ASTM D1319 Hydrocarbon Types In Liquid Petroleum Products
The determination of the total volume % of 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.
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