Meeting Tier 3 Requirements with Ease and Precision
17 May 2016

Now that the U.S. Environmental Protection Agency (EPA) has enacted new, lower sulfur level requirement in gasoline (Tier 3), there is a renewed interest within the petroleum industry for measuring ultra-low level sulfur in fuels. In order to make the transition to lower maximum levels as smooth as possible, it is critical to seek out the most efficient and precise technologies for measuring sulfur at these new ultra-low levels. This application note demonstrates how monochromatic wavelength dispersive x-ray fluorescence (MWD XRF) can be used to measure sulfur down to 0.5ppm in samples from the petroleum industry.