ASTM on XRF

D-2332   “Standard Practice for Analysis of Water-Formed Deposits by Wavelength-Dispersive X-ray Fluorescence”

D-5839   “Standard Test Method for Trace Element Analysis of Hazardous Waste Fuel by Energy-Dispersive X-ray Fluorescence Spectrometry”

D-6052   “Standard Test Method for Preparation and Elemental Analysis of Liquid Hazardous Waste by Energy-Dispersive X-ray Fluorescence”

D-6502   “Standard Test Method for On-line Measurement of Low Level  Particulate and Dissolved Metals in Water by X-ray Fluorescence"**

             **"This method refers specifically to Detora Technology"

These methods can be found in Annual Book of ASTM Standards Volume 11.01:Water and Environmental Technology