GB/T 4698.28-2017 "Methods for chemical analysis of titanium sponge, titanium and titanium alloys, Part 28: Determination of ruthenium content Inductance coupled plasma atomic emission spectroscopy (AES) method" specifies a method for the determination of ruthenium content in titanium sponge, titanium and titanium alloys, applicable to the determination of ruthenium content in 0.05% to 0.50%. The standard describes the use of mixed acids of muriatic acid, hydrofluoric acid and nitric acid to dissolve the specimen and heat the sample in a high voltage digestion tank, followed by the measurement of ruthenium emission intensity at the recommended wavelength by Inductance coupled plasma emission Light spectrum instrument, and finally the ruthenium mass concentration is calculated from the working Linear dispersion. This standard provides a scientific basis for the quality control of related products.