Test Application Report on sulfur and metals in petroleum/lubricants — Compass X-ray Fluorescence Spectrometer Compass-4294
Test Application Report on sulfur and metals in petroleum/lubricants — Compass X-ray Fluorescence Spectrometer Compass-4294
introduction
Compass4294- is a high performance benchtop energy dispersive X-ray fluorescence spectrometer that is fully capable of analyzing sulfur and heavy metal content (ppm class to percentage) in petroleum. ASTM4294 describes the method of measuring sulfur in oil by CompassRF. This application guide demonstrates the method of using Compass4294 according to ASTM4294- The sulfur content is typically 17ppm to 5 percent. It is also demonstrated that the test performance of the metal in lubricants can prove that Compass4294 meets the requirements for this application\
Compass-4294 is also widely used to analyze metals in lubricants, meeting the following criteria:
ASTMD7751/ASTM D6481–Determination of added elements (Mg, P, S, Cl, Ca, Zn, Mo) in lubricating oil
ASTM D5059–
Lead in gasoline (PB)
0.010 to 5.0 g lead per US gallon
0.012 to 6.0 g lead/UK gal
0.0026 to 1.32 g lead/L
Test performance
Test performance of 50 ppm sulfur standard
Test performance> Test performance of 50 ppm sulfur standard
300 ppm metal content standard for testing performance in lubricants
Test Application Report on sulfur and metals in petroleum/lubricants — Compass X-ray Fluorescence Spectrometer Compass-4294
Calibrate.
Calibrate the CompassRF spectrometer using a series of commercially available petroleum standard fluids.
Special sample cups are required to collect the standard and sample for measurement
The test spectrum is shown below
The calibration curve of metal elements in lubricating oil is as follows
conclusion
Based on the test results obtained above, proving that Compass4294 is capable of measuring in accordance with ASTM D4294, ISO 8754, ISO 20847,IP336, Compass4294 has also been shown to analyze other elements in petroleum and similar matrix samples with high and precise accuracy,