GB/T 2596-1981
Abolished
YS/T 645-2007
Active
Industry standards-Non-ferrous metals
YS/T 645-2007 Method for analysis of gold compounds—Determination of gold content—Potentiometric titration using ferrous sulfate
YS/T 645-2007 Method for analysis of gold compounds—Determination of gold content—Potentiometric titration using ferrous sulfate
Basic Information
Standard Code:
YS/T 645-2007
Standard Type:
Industry standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Analysis methods for precious metals and their alloys
ICS Name:
Chemical analysis of metal materials
Publish Date:
2007-04-13
Implement Date:
2007-10-01
Pages:
5 pages
Scope
This standard specifies the method for determining the gold content in gold compounds. This standard is applicable to the determination of gold content in KAu(CN)2, KAu(CN)4, KAuCl4, NaAuCl4, and HAuCl4. The measurement range is 30% to 95%.
Development Information
Superseded by the following standards
Related Standards
GB/T 3249-1982
Replaced
GB/T 3249-1982 Standard method for determination of particle size of powders of refractory metals and compounds—Fisher method
GB/T 3488-1983
Replaced
GB/T 3488-1983 Hardmetals—metallographic determination of microstructure
GB/T 3489-1983
Replaced
GB/T 3489-1983 Hardmetals—Metallographic determination of porosity and uncombined carbon
GB/T 3651-1983
Replaced
GB/T 3651-1983 Measuring method for thermal conductivity of metal at high temperature
GB/T 4059-1983
Replaced