GB/T 13840-1992
Abolished
GB/T 39138.2-2020
Active
National standards
GB/T 39138.2-2020 Methods for chemical analysis of gold nickel chromium iron silicon boron alloys—Part 2:Determination of nickel content—Dimethylglyoxime gravimetric method
GB/T 39138.2-2020 Methods for chemical analysis of gold nickel chromium iron silicon boron alloys—Part 2:Determination of nickel content—Dimethylglyoxime gravimetric method
Basic Information
Standard Code:
GB/T 39138.2-2020
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:
2020-10-11
Implement Date:
2021-09-01
Pages:
6 pages
Scope
This part of GB/T 39138 specifies the method for determining the nickel content in gold-nickel-chromium-iron-silicon-boron alloys.
This part is applicable to the determination of nickel content in gold-nickel-chromium-iron-silicon-boron alloys. The measurement range is 60.00% to 80.00%.
Development Information
Same series standard
GB/T 39138.1-2020 Methods for chemical analysis of gold nickel chromium iron silicon boron alloys—Part 1:Determination of gold content—Potentiometric titration using ferrous sulfate
GB/T 39138.3-2020 Methods for chemical analysis of gold nickel chromium iron silicon boron alloys—Part 3:Determination of chromium,iron,silicon and boron contents—Inductively coupled plasma atomic emission spectrometry
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