SDB-QX-G Octane Number and Cetane Number Analyzer

SDB-QX-G Octane Number and Cetane Number Analyzer

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  • Specifications&Features
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GB/T503, ASTM D2699, GB/T5487, ASTM D2700, GB/T 386, ASTM D613


This instrument is used to determine the octane number of gasolines and cetane number of diesels.

Main technical specifications

1. Working environment: Temperature range: 10℃~35℃, Relative humidity: <85%
2. Measuring range:
(1)Gasoline for motor vehicles:
National standard: 70.0~110.0/RON blended gasoline: 75.0~110.0/RON
Ethanol: E93: 92.0~95.0/RON Isomerized gasoline: 87.0~108.0/RON
Methanol: M93 85~100/RON M97 92~110/RON
Methanol content:(M5~M25%) E97: 95.0~99.0/RON
(2)Raw material: light gasoline:50.0~80.0/MON Arene gasoline:95.0~120.0/RON
(3)Aviation gasoline: 85.0~105.0/MON
(4)Diesel fuel: 25~75/CN(cetane number); 20~80/CI(cetane index)
3. Test accuracy:
Aviation gasoline: ≤±1.5/MON
Gasoline for motor vehicles: ≤±1.5/RON ≤± 1.5/MON
Automobile diesel fuels: ≤±2.6/CN ≤±2.6/CI
Regression sample retest: ≤±0.5/RON: ≤±0.5/MON
Regression sample measurement: ≤±1.5/RON ≤± 1.5/MON
Calibration accuracy: ≤±0.2/RON
4. Precision(confidence level 95%)
Reproducibility: ≤±0.5/RON Repeatability: ≤±0.2/RON
5. Minimum scale: 0.1/RON 0.1/MON
6. Response time: 1min
7. Test result: LCD display, it can store and print
8. Power supply: AC220±10V, 50±1Hz.

Main technical features
1. With the innovative high precision digital sensor,strong anti-interference capability,less deviation,high precision,good reproducibility and repeatability.
2. With the automatic returning technical platform to realize the value transformation from the national standard CFR tester to SDB-QX-G, improve the measurement accuracy and expand the measurement range.
3. Establishing the technical platform to jointly do the auxiliary calculation with the traditional petroleum detecting instruments(Distillation tester,Densimeter),it makes sure that the cetane index of diesel fuels and the cetane number be measured more accurately,and could gear with the technical requirements GB/T 386.
4. It adopts the color LCD touch display,with simple and convenient man-machine conversation screen,and guide the user to operate correctly according to the hints on the screen display.
5. It adopts automatic value assignment calibration technology. The calibration procedure is simple, the method is scientific, and the calibration result is accurate and reliable.
6. Gasoline octane number test:A test can display research octane number, motor octane number and antiknock index at the same time. Diesel fuels test can display the cetane number,to input standard density and mid-boiling point can get cetane index, to derive the correct the cetane number automatically.
7. It needs less test oil, every test only needs 150 ml samples; The test time is short, every test time is in 1 min.