GB/T 13840-1992
Abolished
GB/T 38744-2020
Active
National standards
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
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
Basic Information
Standard Code:
GB/T 38744-2020
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Analysis methods for precious metals and their alloys
ICS Name:
Other non-ferrous metals and their alloys
Publish Date:
2020-04-28
Implement Date:
2021-03-01
Pages:
8 pages
Scope
This standard specifies the method for determining the content of cerium, lanthanum, praseodymium, neodymium, barium, and zirconium in automotive exhaust purifiers using inductively coupled plasma atomic emission spectrometry.
This standard is applicable to the determination of the content of cerium, lanthanum, praseodymium, neodymium, barium, and zirconium in exhaust purifiers for gasoline vehicles, diesel vehicles, and motorcycles. The measurement range is shown in Table 1.
Development Information
Related Standards
GB/T 15677-1995
Replaced
GB/T 15677-1995 Lanthanum metal
GB/T 3136-1995
abolished_transferred
GB/T 3136-1995 Tantalum powders
GB/T 3463-1995
Abolished
GB/T 3463-1995 Tantalum wires
GB/T 3628-1995
Replaced
GB/T 3628-1995 Tantalum and tantalum alloy foils
GB/T 16476-1996
Replaced