Full line of particle characterization analyzers - particle size, surface area, - plus sulfur-in-oil analyzers. Particle characterization includes light scattering, 0.02 to 2000 microns and centrifugal sedimentation, 0.01 to 300 microns. Sulfur-in-Oil Analyzers use x-ray fluorescence and provide measurement sensitivity down to 5 wt. ppm sulfur, with 1.6 wt. ppm repeatability. These analyzers are particularly designed for measuring the new low end sulfur diesel fuels and reformulated gasolines. These instruments are automated for unattended operation providing labor savings and optimum repeatability.