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Table 1

Test Methods for Sulfur Determination in Petroleum Products
ASTM METHOD TECHNIQUE COMMENTS
D 129 Bomb combustion and precipitation For products with >0.1m% sulfur
D 1266 Lamp combustion and wet chemistry Labor intensive; not widely used
D 1552 High temperature combustion; iodate titration or IR detection For non-volatile products
D 2622 Wavelength dispersive X-ray fluorescence Expensive instrument but widely used

Sample – standard matrix must match

D 2784 Oxyhydrogen burner or lamp combustion and wet chemistry For LPG only
D 3120 Oxidative pyrolysis and microcoulometry Poor precision; not widely used
D 3246 Oxidative pyrolysis and microcoulometry For LPG only
D 4045 Hydrogenolysis and rateometric colorimetry Not widely used
D 4294 Energy dispersive X-ray fluorescence
Precision poor at low sulfur levels but widely used
D 4927 Wavelength dispersive X-ray fluorescence Used for additives and lube oils
D 4951 Inductively coupled plasma atomic emission spectrometry Used for additives and lube oils
D 5185 Inductively coupled plasma atomic emission spectrometry Widely used for lube oils, and also additives
D 5453 High temperature combustion UV-fluorescence Good precision; widely used
D 6334 Wavelength dispersive X-ray fluorescence Sample – standard matrix must match
D 6428 Oxidative combustion electrochemistry Not widely used
D 6443 Wavelength dispersive X-ray fluorescence For lube oils and additives
D 6445 Energy dispersive X-ray fluorescence Similar to D 4294
D 6667 High temperature combustion UV-fluorescence For LPG only
D 6920 Oxidative combustion electrochemistry Similar to D 6428

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