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See Chinese contents: GB/T 38744-2020 GB/T 38744-2020: Methods for chemical analysis of synergistic catalysis elements in automotive exhaust catalysis -- Determination of cerium, lanthanum, praseodymium, neodymium, barium and zirconium contents -- Inductively coupled plasma atomic emission spectrometry
This Standard specifies the method that uses inductively coupled plasma atomic emission spectrometry to determine cerium, lanthanum, praseodymium, neodymium, barium and zirconium contents in motor vehicle exhaust purifier. This Standard is applicable to determination of cerium, lanthanum, praseodymium, neodymium, barium and zirconium contents in exhaust gas purifier for gasoline vehicles, diesel vehicles and motorcycles. See Table 1 for the range of determination.
