Test item viscosity measurement: By measuring the viscosity of waste engine oil、 the wear and tear of waste engine oil can be understood、 and the consistency of waste engine oil can also be determined whether it is suitable for reuse. Determination of inorganic impurity content: Waste engine oil may contain harmful impurities such as metals、 dust、 sand particles、 and moisture、 which can affect the lubrication effect and lifespan of the oil. Therefore、 it is necessary to measure the inorganic impurity content in waste engine oil. Determination of acid value: Excessive acidity in waste engine oil can affect the performance and lifespan of the oil、 so it is necessary to measure the acid value of waste engine oil. Measurement of oxidation stability: Waste engine oil can undergo oxidation due to long-term use、 which affects the lubrication performance and service life of the oil. Therefore、 it is necessary to measure the oxidation stability of waste engine oil. Determination of flash point: The flash point of waste engine oil refers to the combustion point generated by the oil when encountering extremely high temperatures. Testing the flash point of waste engine oil can determine whether it is suitable for reuse. Measurement of viscosity index: The higher the viscosity index of waste oil、 the better its lubrication effect on the machine. When testing waste oil、 its viscosity index can be measured. The detection scope includes diesel engine waste oil、 gasoline engine waste oil、 aviation waste oil、 mechanical equipment waste oil、 etc. Related reference standard specifications DIN 51453-2004: Lubricant testing - Determination of oxidation and nitration of scrapped engine oils - Red light spectrometric method GB/T 5822.2-2004: Determination of petroleum ether insoluble matter in railway diesel locomotive engine oils GB/T 5904-1986: Light duty injection rotary air compressor oils GB/T 6532-2012: Determination of salt content in crude oil - Potentiometric titration method GB/T 6538-2010: Determination of apparent viscosity of engine oils - Cold start simulator method GB/T 7596-2017: Power plant operation Quality of Mineral Turbine Oil GB/T 7597-2007: Sampling Methods for Electric Power Oils (Transformer Oil、 Turbine Oil) GB/T 7600-2014: Determination of Moisture Content in Transformer Oil and Turbine Oil During Operation (Coulomb Method) GB/T 7601-2008: Determination of Moisture Content in Transformer Oil and Turbine Oil During Operation (Gas Chromatography Method) GB/T 7602.1-2008: Determination of T501 Antioxidant Content in Transformer Oil and Turbine Oil Part 1: Purpose of Processing Test Reports by Spectrophotometer 1 Evaluate the quality of the product; 2. Determine the product quality level、 i.e. the severity of defects; 3. Inspect the process flow and supervise the process quality; 4. Collect、 statistics、 and analyze quality data to lay the foundation for quality improvement and management activities; 5. Introduce arbitration inspection to determine the responsibility for quality accidents. The purpose of handling third-party testing reports is to obtain an independent、 objective、 and professional evaluation result to confirm whether the tested items or services comply with relevant regulatory standards、 quality requirements、 or technical specifications、 and to verify their safety、 reliability、 and performance. Third party testing reports are typically used in areas such as product certification、 market access、 supply chain management、 trade negotiations、 and dispute resolution. Precautions for Testing Report: Carefully read and understand each section after receiving the testing report. Ensure that there is a "research and testing special seal" and official seal in the report、 and check the anti-counterfeiting QR code to confirm its effectiveness. Confirmation information: Verify whether personal or organizational information is accurate and accurate. If the report is not stamped with the "Research and Testing Special Seal" or official seal、 it is invalid. Pay attention to the test results: Focus on the summary and detailed information of the test results. If in doubt、 consult relevant engineers and it is strictly prohibited to alter the report. Pay attention to the reference range: Check the reference range of the test results to see if the results are normal. As the reference range varies depending on factors such as samples、 test methods、 reference standards、 etc.、 please contact our engineers to discuss your specific situation. Objection handling: If you have any objections to the test report、 please file an appeal within 15 days of receiving the report. Late appeals will not be accepted. The above article is a partial list. For more testing needs and details、 please consult the online consultant of the free consulting agency: 18501763637

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inspection and testing process:

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