Iron in hay as a raw material for cattle feed AppNote 1425: analysis of iron in hay as a raw material for cattle feed
Lead (Pb) in gasoline per ASTM D5059 AppNote XRF1438: analysis of lead (Pb) in gasoline per ASTM D5059
Lubricating oil by ASTM D6481 AppNote XRF1249: analysis of P, S, Ca and Zn in lube oil per ASTM D6481-99
Sulfur in bunker fuel by ASTM D4294 AppNote XRF1230: analysis of sulfur in bunker fuel and diesel per ASTM D4294