GB/T 13840-1992
Abolished
GB/T 12690.6-2017
Active
National standards
GB/T 12690.6-2017 Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 6:Determination of iron content—Kslium thiocyanate,1,10-Phenanthroline spectrophotometric method
GB/T 12690.6-2017 Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 6:Determination of iron content—Kslium thiocyanate,1,10-Phenanthroline spectrophotometric method
Basic Information
Standard Code:
GB/T 12690.6-2017
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Analysis methods for rare metals and their alloys
ICS Name:
Other non-ferrous metals and their alloys
Publish Date:
2017-10-14
Implement Date:
2018-05-01
Pages:
6 pages
Scope
This part of GB/T 12690 specifies the method for determining the iron content in rare earth metals and their oxides. This part is applicable to the determination of iron content in rare earth metals and their oxides. The determination range is 0.000 1% to 0.005 0%.
Development Information
Same series standard
GB/T 12690.5-2017 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 5:Determination of cobalt,manganese,lead,nickel,copper,zinc,aluminum,chromium,magnesium,cadmium,vanadium and iron contents
GB/T 12690.18-2017 Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 18:Determination of zirconium content
Replace the following 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