Total Analysis Acid Number (TAN) by ASTM Methods D664

Quality and condition of petroleum products, especially lubricating oil, is an important factor in maintaining operational industrial equipment. One of the parameters used to evaluate the characteristics of oil chemistry is Total Acid Number (TAN). This test aims to determine the amount of acidic components in the oil samples specified in potassium potassium units per gram of samples.

PT Hidea Core supports laboratory analysis needs for the characterization of petroleum products and lubrication through testing chemical parameters relevant to industrial needs. One of the standard methods that we are referring to in total testing the Acid Number is ASTM D664, which is how the Acid Number determines the method using techniques potential. Analysis results can be used as support data in product quality evaluations, monitoring changes in lubricant conditions, as well as industrial control needs.

Total Expert Acid Number Analysis for Oil & Gas Industries

For the Oil & Gas sector, power plants, manufacturing, and industry using the lubricant system, monitoring the chemical characteristics of oil is an important part of operational quality control. The total test of Acid Number Analysis gives information about the content of the acid component in the sample so that the characteristics of oil can be evaluated more accurately.

Some of the major benefits of testing the Total Acid Number include:

  • Lubricating Oil Condition Evaluation
    TAN testing helps monitor acid content changes in lubricant during use. The increase in TAN value can be one indication of chemical change due to the process of oxidation or oil degradation.
  • Product Quality and Stability Monitoring
    Data Acid Number can be used as one parameter in the monitoring program of the oil condition (oil condition monitoring) and evaluate the consistency quality product of petroleum.
  • Chemical Character Changes Identification
    TAN analysis helps identify the changing content of the acidic components that can occur during storage, use, or exposure to certain operational conditions.
  • Preventive Madness Support
    The test results can be used as supporting data in determining the need for further evaluation of the lubricant and industrial equipment systems.

Test Parameters Specification Total Acid Number

As one of the important parameters in the spectroleum products characterization, the total test of ACid Number is done to determine the number of bases required to neutralize the acidic components of the sample. Here are the general specs of TAN testing based on the ASTM method D664:

Testing ParametersSpecification
Parameter NameTotal Acid Number (TAN) / Acid Number
Testing MethodASTM D664
Analysis PrinciplePotentiometric Titan
TitrantPotassium hydroxide (KOH)
Result Unitmg KOH / g sample
Sample TypePetroleum Products and Lubricating Oil that fit the scope of the method
Testing DestinationDetermines the substance of acid in the oil sample

Test Method ASTM D664 - Potentiometric Titration

ASTM D664 It's a standard method for determining Acid Number on petroleum products and lubricans through the engineering of potentiometry titration. This method uses potassium base solution hydroxide as a node to neutralize the acid components contained in the sample.

In general, the principle of testing is done through the following stage:

  1. Sample Preparation - Oil samples are weighed and prepared according to test method procedures.
  2. Sample Recruiting - Sample dissolved using a solvent system specified in ASTM D664 methods.
  3. Titration Process - Adjust samples are edited using a known concentration of KOH solution.
  4. End Point Detect - Electrodes of potentiometry are used to detect potential changes during the title process.
  5. Results - The volume of the node used to get the Acid Number value in the number of mg KOH / g samples.

The TAN value gives information about the amount of acidic components measured by the state of the test method. The result interpretation needs to consider product types, lubricant specs, usage conditions, as well as previous testing data. The TAN value cannot be used single to deduce the corrosive rate of an oil.

Total Exid Number (TAN) and Total Base Number (TBN) difference

In lubricant analysis, Total Acid Number (TAN) and Total Base Number (TBN) are two parameters that have different functions, but can be used simultaneously to evaluate the changes in the chemical characteristics of oil.

  • Total Acid Number (TAN)
    Measure the amount of acidic components in the oil sample specified in mg KOH / g samples.
  • Total Base Number (TBN)
    Measure base capabilities in oil samples to neutralize the acidic components, which are also specified in mg KOH / g samples.

Both parameters can provide additional information in monitoring the lubricant conditions. However, the result interpretation must be adjusted to the type of oil, additives formulation, producer recommendations, and operational conditions of equipment.

Power Number PT Number for Analysis Services

As a lab focuses on the Oil & Gas sector and petroleum analysis, PT Hidea Core It supports laboratory testing needs for petroleum products and lubricating oil characters. Total Test Acid Number is one of the parameters that can be consulted to support product quality evaluation and monitoring industrial lubrication conditions.

For more information on the availability of the ASTM method D664, the type of samples, the volume needs samples, the time of labor, and the price offering, please contact our lab team.

PT Hidea Core
High Idoas. Solution.

The area of Industrial and Tekno Park, 18 Block J1, BSD, Kel.

Email: labservices@hidea.id
WhatsApp: + 62 877-6494-5736

Pata Safira Nur
Pata Safira Nur
Articles: 42

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