The NEX QC Benchtop EDXRF Elemental Analyzer from Rigaku provides low-cost, fast, and reliable sulfur determination using ASTM D4294. The NEX QC features smart phone interface, built-in printer, up to 38 calibrations, and single position or autosampling. Other reliable characterization and proper quality control for petrochemical analysis also include the NEX QC+ (ISO 13032 for ULSD) and NEX CG (ASTM D7220 for ULSD).