Sulfur, chlorine and ash in coal AppNote XRF1419: analysis of S, Cl and predicted ash in unburned coal
Analysis of Cement and ASTM C114 Qualification AppNote XRF3051: Analysis of Cement and ASTM C114 Qualification
Analysis of Air Filters - U.S. EPA Sensitivity AppNote XRF1951: Analysis of Air Filters - U.S. EPA Sensitivity