Sulfur in crude oil and fuels per ASTM D2622-16 AppNote XRF1082: sulfur in crude oil and fuels per ASTM D2622-16
Lubricating Oil Analysis by WDXRF According to ASTM D6443-14 AppNote XRF1105: Lubricating Oil Analysis by WDXRF According to ASTM D6443-14
Quantitative analysis of a 4-component sample AppNote B-XRD1001: quantitative analysis of a 4-component sample