机译:Development of Crude Oil Reference Material Certified for the Concentrations of Sulfur, Iron, Nickel, Vanadium and Magnesium
Natl Inst Stand, Tersa St,POB 136, Giza 12211, Egypt;
Cairo Univ, Chem Dept, Fac Sci, Giza 12613, Egypt;
Crude oil; Reference materials; Homogeneity assessment; Stability assessment; Certification; Uncertainty estimation;