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Full Diesel Analysis reveals results to check complete aspects of diesel quality. It is generally required in two cases, first when someone buying it from sellers and the second if somebody experiencing problems with its use.

The test covers most of the parameter and test methods to see whether diesel is as per prescribed standards or it has some otherwise results.

Below is the full diesel testing package used globally to test standard quality of Diesel.

Full Diesel Analysis – 15 Test Methods Group
S No. PARAMETERS TEST METHODS
1
2
3
4
5
6
7
8
9




10
11
12
13
14
15
Acid Number(Total)
Acid Number (Strong)
Pour Point
Density/Specific Gravity @ 60/60 deg F
Sediment by Extraction
Kinematic Viscosity @ 40 deg C
Water Content
Sulphur Content
Distillation
• IBP
• FBP
• Residue
• Loss
Ash Content
Carbon Residue(on 10% Dist.Residue)
Cetane Index
Colour
Copper Corrosion 3 Hrs @ 100 deg C
Flash Point
ASTM D 974
ASTM D 974
ASTM D 97
ASTM D 4052
ASTM D 473
ASTM D 445
ASTM D 95
ASTM D 4294
ASTM D 86




ASTM D 482
ASTM D 189
ASTM D 976
ASTM D 1500
ASTM D 130
ASTM D 93

Explanation to Each Test

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)

Cetane Index

Colour:
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.

Copper Corrosion 3 Hrs @ 100°C:

Flash Point by ASTM D 93:
It is a physical characteristic of diesel where a test is conducted to check at what lowest temperature the diesel starts vaporizing. Of course there is a standard temperature made for the quality of diesel. In a rather brief definition, a temperature where diesel is heated to produce mixture of vapor and air ignition exposed to flame.

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