GB/T 13840-1992
Abolished
GB/T 23277-2009
Active
National standards
GB/T 23277-2009 Chemical analysis methods of catalysts containing precious metals—Determination of platinum,palladium and rhodium in automobile exhaust-purifying catalysts—Spectrophotometry
GB/T 23277-2009 Chemical analysis methods of catalysts containing precious metals—Determination of platinum,palladium and rhodium in automobile exhaust-purifying catalysts—Spectrophotometry
Basic Information
Standard Code:
GB/T 23277-2009
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Precious metals and their alloys
ICS Name:
Other non-ferrous metals and their alloys
Publish Date:
2009-01-05
Implement Date:
2009-11-01
Pages:
6 pages
Scope
This standard specifies the method for determining the amount of platinum, palladium, and rhodium in automotive exhaust purification catalysts.
This standard is applicable to the determination of the platinum, palladium, and rhodium content in new and failed automotive exhaust purification catalysts. The measurement range is Pt, Pd 20 g/t to 5,000 g/t, and Rh 20 g/t to 600 g/t.
Development Information
Referenced Standards
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