BS EN ISO 14596:1998 Methods of test for petroleum and its products. Determination of sulfur content. Wavelength-dispersive X-ray fluorescence spectrometry
2007BS EN ISO 14596:2007 Petroleum products. Determination of sulfur content. Wavelength-dispersive X-ray fluorescence spectrometry
2002BS EN ISO 14596:1998 Methods of test for petroleum and its products. Determination of sulfur content. Wavelength-dispersive X-ray fluorescence spectrometry