Grabner participated in drafting DB51T 3054-2023 "Technical Specification for Rapid Screening of Refined Oil Products in Sichuan Province"

Finished oil is an important commodity related to the national economy and people's livelihood. The supply and order of the finished oil market directly affect the stability of social production and life, as well as the vital interests of the people. The quality of refined oil has a significant impact on air pollution control, blue sky defense, and regional environmental quality. National and local functional departments usually conduct regular spot checks and law enforcement inspections on the quality of refined oil products in the circulation field within their jurisdiction.

At present, in the supervision and spot check of finished oil products, the routine laboratory testing cycle is too long to determine whether the oil quality is qualified. It requires testing, objection handling, and re inspection, which takes at least several days or even more than ten days. Once the results are available, even if there are unqualified oil products, they may have been sold out. At the same time, serious problems such as expensive laboratory testing equipment and high investment in manpower and administrative resources have led to low sampling frequency by law enforcement departments, which seriously restricts the effectiveness of quality supervision of refined oil products. The conventional supervision methods are gradually no longer suitable for the regulatory requirements and intensity under the new situation.

In order to standardize the order of the refined oil market, promote the healthy development of the refined oil circulation field, assist in ecological environmental protection, win the battle to protect the blue sky, meet the regulatory requirements and intensity of refined oil under the new situation, and avoid the flow of unqualified refined oil into the market, it is urgent to establish technical standards for rapid screening of refined oil and introduce rapid detection technology for refined oil.

Proposed by the Sichuan Provincial Administration for Market Regulation, Sichuan Product Quality Supervision, Inspection and Testing Research InstituteAustrian Grubner Instrument CompanyWaiting for participation in draftingDB51/T 3054-2023 "Technical Specification for Rapid Screening of Refined Oil Products in Sichuan Province"YuFormally implemented from June 1, 2023The establishment, publication, and implementation of this standard are evidence-based for the law enforcement work of rapid on-site screening of refined oil products in the production, storage, transportation, sales, and use processes within Sichuan Province. At the same time, this method has played an important constructive role in greatly shortening the inspection cycle of finished oil products, significantly reducing sampling and transportation costs, expanding the coverage of sampling, increasing the intensity and frequency of sampling, and standardizing the rapid screening behavior of finished oil products. It provides strong technical support for the comprehensive supervision and governance of the finished oil circulation market in Sichuan Province.

Standard screening items

This standard not only specifies the main screening items, thresholds, and test methods for automotive gasoline/diesel (such as octane number, benzene, aromatic hydrocarbons, olefins, oxygen content, methanol, etc. of gasoline, but also uses mid infrared spectroscopy as a rapid detection method for polycyclic aromatic hydrocarbons, cetane number, etc. of diesel as finished oil; the flash point test method for diesel is SH/T0768 micro closed flash point tester).

At the same time, reference screening items and experimental methods for automotive gasoline/diesel are also listed (such as infrared spectroscopy method in GB/T33648 for illegal additives such as aniline and formaldehyde in automotive gasoline, and SH/T0794 trace method for vapor pressure); Automotive diesel fatty acid methyl ester GB/T23801 and cetane index by mid infrared spectroscopy

Sampling:

• Extract 300-400ml of representative samples according to GB/T4756 for rapid screening.

Method validation:

• Regular evaluation of rapid screening methods shall be conducted by qualified testing institutions in this province, and the evaluation of rapid screening methods shall be conducted every six months.
  

• The rapid screening method needs to be compared with the arbitration methods specified in GB17930 and GB19147, and the difference between the results of the two methods should meet the reproducibility requirements of the two arbitration methods mentioned above.

Result processing and reporting:

• If the test result meets the threshold specified in the standard, the rapid screening result is passed and a rapid screening report can be issued.

• If one or more test results exceed the threshold, the rapid screening result is considered suspicious.

Appendix: Rapid Detection Method for Finished Oil Products - Infrared Spectroscopy Method

In Appendix A of the standard (Infrared Spectroscopy Method for Rapid Detection of Finished Oil Products), it is introduced thatPrincipal Component Analysis, Partial Least Squares (PLS)Modern chemometric methods (compliant with GB/T 29858), andLambert Beer lawEstablish a linear or nonlinear relationship (calibration model) between spectra and quality indicators to achieve utilizationSpectral characteristic absorption peakRapid determination of various chemical component quality indicators of the test sample.

temperature effectConsidering that all spectral analysis techniques are greatly affected by temperature changes during the analysis process, spectral data may have deviations, which can affect the accuracy, effectiveness, and reliability of spectral analysis results. Therefore, this standard also fully considers the influence of temperature and specifies in the sample determination section of the standard thatThe sample should be kept constant at room temperature of 23 ℃± 5 ℃ before analysis，To meet the requirements of rapid detection, the sample pool can be equipped with cooling, heating and constant temperature devices, or the ambient temperature inside the rapid inspection vehicle can meet the requirements.

Austrian Grabna Refined Oil Quick Inspection Equipment

1. Mid infrared gasoline and diesel analyzer

• Fourier transform mid infrared spectroscopy full spectrum analysis

• Thermoelectric temperature control: real-time temperature control of the injector, densitometer, and sample cell to ensure constant temperature throughout the entire testing process

• Built in principal component analysis, PLS partial least squares and other chemometric methods

• Built in Anton Paar U-shaped oscillating densitometer for real-time density testing

• Portable, fully automatic, one click operation design

• The testing time is only 5 minutes, and the sample size is only 6ml

• Meet the GB/T33648 detection method for illegal additives such as aniline and formaldehyde

• One can obtain over 80 indicators of gasoline, including octane number, density, total aromatics, total olefins, total oxygen content, benzene content, methanol, ethanol, MTBE, etc; More than 20 indicators of diesel, including cetane number, cetane index, total aromatic hydrocarbons, polycyclic aromatic hydrocarbons, fatty acid methyl esters, pour point, cold filter point, density, etc; And more than 10 indicators of aviation kerosene.

• This instrument is widely used for rapid storage and retrieval of finished oil products, quality control of oil products, and on-site inspection of oil products at gas stations.

2Micro closed flash point tester

• Safe flash point tester

• No open flames, no irritating gases

• Arc ignition, continuous cup closing operation process

• The sample size is only 1-2ml,

• The testing time is only 3-5 minutes,

• Portable, fully automatic, one click operation design

• 10 inch full-color industrial grade touch screen

• Widely used in flash point testing of hazardous chemicals

3. Micro vapor pressure tester

• Built in complete vapor pressure testing standard

• The sample size is only 1ml

• The testing time is only 5 minutes

• No sample preparation or vacuum pump configuration is required before testing

• Portable, fully automatic, one click operation design

• 10 inch full-color industrial grade touch screen

• Can be applied to on-site sampling of steam pressure indicators such as gasoline, aviation kerosene, etc

About the Austrian Grabna Refined Oil Quick Inspection Vehicle

Since 2003, Grabna, Austria has been selling fast inspection vehicles (fuel mobile inspection vehicles) globally to countries such as Europe and North America. And gradually expand to countries in South America, Africa, the Middle East, Southeast Asia, and China. As of now, Grabner Austria has sold over 200 sets of rapid inspection vehicles to various parts of the world, equipped with more than 600 sets of Grabner rapid inspection equipment.