Full Diesel Analysis
From Diesel Testing
Acid Number(Total) and Acid Number (Strong) by ASTM D 974:
Acid number (AN) refers to concentration of acid in the diesel sample. By using test method ASTM D 974, we use to measure acid constituents through a color change technique to indicate inflection. In a brief scenario, the sample is generally dissolved into a particular solution of toluene, p-naphtholbenzne, and isopropyl alcohol containing water. Then the solution is titrated with KOH and in the meantime, the color is monitored. The kind of test is generally used on new diesel and oils that are not excessively dark.
Pour Point by ASTM D 97
Pour Point is useful at the lowest temperature where a diesel can be pumped.
In another definition, Pour Point is point of temperature where a liquid (oil) becomes semi solid and starts loosing its flowing characteristics.
Density @15°C/Specific Gravity @ 60/60 deg F by ASTM D 4052
Identifies volumetric energy of the diesel. The more density in diesel means, the more volumetric energy it possesses. It is measured at 15°C and is also known as specific gravity.
Sediment by Extraction by ASTM D 473:
Kinematic Viscosity @ 40°C by ASTM D 445:
Viscosity of a diesel can be defined as a measure of resistance to the flow of diesel.
Water Content by ASTM D 95:
This test identifies the amount of water in diesel. There is a minimum and maximum standard for water content in diesel which we need to follow otherwise it harms.
Sulphur Content ASTM D 4294:
Sulphur or Sulfur content means the amount of sulphur present in the diesel. It should be maintained with the standard value because higher sulphur values in diesel caused harmful effect to environment. Sulfur can be present in different forms for example, mercaptains, sulfides, disulfides, and all that may cause wear and deposits.
Distillation by ASTM D 86
Distillation is the process of heating diesel for separation of different components in it.
Ash Content by ASTM D 482
Ash Content refers to amount of ash existence in the diesel under analysis.
Carbon Residue(on 10% Dist.Residue)
Color identifies actual color of the diesel while it was produced. This color should be standard color as specified by the standardization authority. Odd color means either diesel is out-dated or mixed with impurities.