GB/T 13840-1992
Abolished
GB/T 23518-2009
Replaced
National standards
GB/T 23518-2009 Palladium on activated carbon catalyst
GB/T 23518-2009 Palladium on activated carbon catalyst
Basic Information
Standard Code:
GB/T 23518-2009
Standard Type:
National standards
Standard Status:
Replaced
is_force_gb:
no
CCS Name:
Precious metals and their alloys
ICS Name:
Other non-ferrous metals and their alloys
Publish Date:
2009-04-08
Implement Date:
2010-02-01
Pages:
9 pages
Scope
This standard specifies the requirements for palladium carbon, test methods, inspection rules, marking, packaging, transportation, storage, and the content of purchase orders (or contracts), etc.
This standard applies to palladium carbon used in fine chemicals, pharmaceuticals, hydrogenation reduction processes of disproportionated rosin, and other applications.
Development Information
Superseded by the following standards
Referenced Standards
GB/T 10722-2003 Carbon black—Determination of total and external surface area by nitrogen adsorption
GB/T 10722-2014 Carbon black—Determination of total and external surface area—Nitrogen adsorption test method
GB/T 15072.4-1994 Method for chemical analysis of precious metals and their alloys—Palladium, silver alloys—Determination of palladium content
GB/T 15072.4-2008 Test method of precious metal alloys—Determination of palladium content for palladium and silver alloys—Butanedione dioxime gravimetry
GB/T 15072.4-2025 Methods for chemical analysis of precious metal alloys—Part 4:Determination of palladium content
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