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

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Scope

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.
Table 1 -- Range of determination for each element
Element Range of determination. / %
Ce, Zr 0.10~10.0
La, Pr, Nd, Ba 0.025~5.0

Basic Data

Standard ID	GB/T 38744-2020 (GB/T38744-2020)
Description (Translated English)	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
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H15
Classification of International Standard	77.120.99
Word Count Estimation	8,863
Date of Issue	2020-04-28
Date of Implementation	2021-03-01
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration
Summary	This standard specifies a method for the determination of the contents of cerium, lanthanum, zirconium, neodymium, barium and zirconium in automobile exhaust gas purifiers by inductively coupled plasma atomic emission spectrometry. This standard applies to the determination of the content of cerium, lanthanum, zirconium, neodymium, barium and zirconium in exhaust gas purifiers for gasoline vehicles, diesel vehicles and motorcycles.