Digging Deeper on ASTM D2622

For many years, professionals in the petroleum industry have faced challenges regarding compliance and quality of product.  ASTM Proficiency Testing Programs (PTP) are statistical quality assurance programs that enable laboratories to evaluate and improve performance. XOS compiled sulfur data from the ASTM monthly RFG (Reformulated Gasoline) and ULSD (Ultra Low Sulfur Diesel) PTP programs between 2015 – 2017 to compare the precision of the mostly commonly used sulfur test methods: D2622, D7039, and D5453. We reviewed data collected on an XOS analyzer that utilizes D7039 monochromatic excitation in both D7039 and D2622 measurement modes to fully understand the ability to couple D2622 method compliance with superior D7039 precision. 

Download our whitepaper to learn which method demonstrated the best performance for reproducibility, and how XOS' D7039 analyzers demonstrate excellent precision in both D7039 and D2622 mode.