Type of Oil impurity analyzer (Standard and method for Oil Impurity analysis)

source: author:inzoc time:2023-09-23 17:15:58 点击:429

First, what are the oil impurity analyzers?


Oil impurity analysis instruments are used to detect and measure various impurities and contaminants in oil products. These instruments can help assess the quality, performance and compliance of oil products. The following are some commonly used instruments and equipment for oil impurity analysis.


1, mass spectrometer: Mass spectrometer can be used to analyze various organic compounds and elements in oil products, including hydrocarbons, sulfur compounds, oxygen compounds, etc. Mass spectrometers can provide high resolution and high sensitivity analysis results.


2, spectrometer: spectrometer, such as ultraviolet visible (UV-Vis) spectrometer, infrared spectrometer (FT-IR) and nuclear magnetic resonance (NMR) spectrometer, can be used to analyze various components and impurities in oil products. They can provide information about molecular structure.


3, chromatographs: Chromatographs, such as gas chromatographs (GC) and liquid chromatographs (HPLC), can be used to separate and analyze different components in oil products, including hydrocarbons, phenols, ketones, etc.


4, mass spectrometer: Mass spectrometer (MS) used in combination with chromatographs can be used to analyze complex mixtures, such as compounds in fuels and lubricants.


5, element analyzer: Element analyzer is used to measure the element content in oil, especially metal elements, such as iron, copper, zinc, sodium and so on.


6, moisture analyzer: Moisture analyzer is used to measure the moisture content in the oil, because the moisture may affect the performance and stability of the oil.


7, gas chromatography mass spectrometry: Gas chromatography mass spectrometry (GC-MS) can be used to analyze volatile organic compounds in oil products, such as benzene, methane, ethylene and so on.


8, particle size analyzer: Particle size analyzer is used to measure the size distribution of particles or solid impurities in the oil.


9, corrosion tester: Corrosion tester is used to assess the corrosion of oil to metal, to detect whether there is a corrosion problem that may cause equipment damage.


10, volatility analyzer: Volatility analyzer can be used to measure volatile components and evaporation in oil products.


Oil impurity analysis products: metal wear particle sensor, oil pollution degree sensor, adsorption wear particle sensor


These instruments and equipment can be used alone or in combination to perform a variety of oil impurity analysis. Choosing the right instrument depends on the type of analysis required, accuracy, and specific oil type. Prior to oil analysis, standard test procedures should be followed and performed by experienced analysts to ensure accuracy and reliability.

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Second, oil impurity analyzer determination standards


The standard of determination of oil impurity analysis usually depends on the specific oil type and application field being analyzed. The following are some examples of common criteria for oil impurity analysis.


1, ISO 4406: This standard is used to assess the level of solid particle contaminants in hydraulic fluids and lubricants. It defines a particle size distribution code for classifying the amount of particle contaminants.


2, ASTM D4057: This standard is suitable for measuring density in liquid petroleum products. It includes a method for measuring petroleum density and can be used for various types of petroleum products.


3, ASTM D86: This standard is used to determine the distillation properties of petroleum products to understand their evaporability and composition distribution.


4, ASTM D5453: This standard is used to determine the content of sulfur compounds in lubricating oil, especially hydrogen sulfide and organic sulfur compounds. This is of great significance for evaluating the corrosivity and contamination of oil products.


5, ASTM D2272: This standard is used to evaluate the antioxidant properties of lubricants to understand the stability of the oil in high temperature environments.


6, ASTM D943: This standard is suitable for the determination of moisture content in petroleum products, because moisture may cause degradation and performance degradation of lubricants.


7, ASTM D130: This standard is used to assess the corrosion of lubricants and fuels, by placing the oil in contact with copper strips for a period of time to observe the degree of corrosion.


8, ASTM D1298: This standard is used to measure the density of petroleum products, including liquid petroleum and petroleum products determination methods.


9, ASTM D664: This standard is used to determine the acid value of lubricating oil to understand the acidity of the oil.


10, ASTM D86: This standard is used to determine the freezing point of petroleum products, which is essential for the performance of lubricants at low temperatures.


These standards are only a small part of the standards involved in the analysis of oil impurities. Depending on the specific oil type and the impurities or properties of concern, different standards or test methods may be used. When analyzing oil products, reference should be made to relevant international, national or regional standards to ensure the accuracy and reliability of the test.


3. Oil impurity analyzer method


The method of oil impurity analysis depends on the specific oil type to be analyzed and the impurities of concern. The following are some examples of common oil impurity analysis methods.


1, chromatography: Chromatography is widely used to analyze various impurities in oil products, such as hydrocarbons, phenols, ketones, esters, fatty acids and other organic matter. Common chromatography methods include gas chromatography (GC) and liquid chromatography (HPLC).


2, spectroscopy: spectroscopy includes ultraviolet visible spectroscopy (UV-Vis), infrared spectroscopy (IR) and nuclear magnetic resonance spectroscopy (NMR). These methods are used to analyze the composition, compound structure and functional groups in the oil.


3, mass spectrometry: Mass spectrometry is used to analyze organic compounds and elements in oil products. Mass spectrometry methods include mass spectrometers and mass spectrometry techniques (such as GC-MS and LC-MS).


4, elemental analysis: elemental analysis is used to measure the content of elements in oil, especially metal elements, such as iron, copper, zinc, sodium, etc. Common methods include atomic absorption spectroscopy (AAS) and inductively coupled plasma mass spectrometry (ICP-MS).


5, moisture analysis: moisture analysis instruments are used to measure the moisture content of oil products, common methods include Carl Fischer titration and coulometry.


6, corrosion test: corrosion test is used to assess the corrosion of oil to metal. Common methods include the ASTM D130 copper corrosion test.


7, density determination: Density determination is used to determine the density of oil products, ASTM D4052 describes the standard method for measuring the density of liquid petroleum products.


8, antioxidant performance test: Evaluate the antioxidant performance of lubricants and greases, ASTM D2272 and ASTM D943 and other standards describe the relevant test methods.


9. Volatility analysis: Volatility analysis instrument is used to measure the content and nature of volatile components in oil products.


10, particle analysis: used to measure the size and concentration distribution of particles or solid impurities in the oil particle size analysis instrument.


11, phosphorus content analysis: used to measure the phosphorus content of oil methods, usually used to evaluate the performance of certain lubricants.


The choice of the above methods will vary depending on the purpose of the analysis and the type of oil. When analyzing oil products, reference should be made to the relevant international, national or regional standards to ensure the accuracy and reliability of the test. In addition, sample preparation and handling of analytical oils may also require special treatment depending on the specific analytical method.


Fourth, what are the precautions for determining oil mechanical impurities?


The determination of mechanical impurities in oil requires special attention to ensure the accuracy and reliability of the test. The following are some matters that need attention when determining mechanical impurities in oil products.


1, sample collection: ensure that the sample collection process is clean, and avoid external contamination of the sample. Use clean containers and tools to collect samples.


2, sample preparation: The sample preparation process should try to avoid the introduction of new mechanical impurities. Use clean instruments and containers and avoid manual sample handling.


3, clean instruments: keep analytical instruments and equipment clean, regular maintenance and calibration instruments to ensure their normal operation.


4, avoid contamination: In the sample analysis and testing process, should avoid the container, pipeline, channel and filter pollution. Use clean filter paper and filter to remove solid particles.


5, experimental conditions: Control experimental conditions, including temperature, humidity and pressure, to ensure the consistency and repeatability of the test.


6, sample handling: when handling samples, be careful to avoid external impact or vibration of the sample to prevent the introduction of mechanical impurities.


7, standard curve: the use of appropriate standard curve to quantify mechanical impurities. Calibrate instruments and perform quality control to ensure accurate measurement results.


8. Training of experimental personnel: Training of personnel who perform mechanical impurity analysis to ensure that they understand the correct operating steps and precautions.


9, report and record: detailed record of analysis conditions, methods, results and sample information. This helps track and verify results, as well as review and analysis when needed.


10, quality control: Use appropriate quality control samples to monitor the accuracy and consistency of the analysis process. Quality control check and reanalysis as required.


11, instrument verification: to ensure that the performance and accuracy of the instrument is verified, and in accordance with the manufacturer's recommendations for maintenance and calibration.


12, safety precautions: Follow the applicable safe operating procedures, especially when hazardous substances or high temperature equipment is involved.


According to the specific requirements and purposes of the analysis, the appropriate method and instrument are selected to ensure the accuracy of the determination of mechanical impurities. For specific types of mechanical impurities, different analytical methods and considerations may be required. It is also important to follow relevant international, national or regional standards and procedures.

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