GB/T 13840-1992
Abolished
GB/T 23513.4-2009
Active
National standards
GB/T 23513.4-2009 Chemical analysis methods for germanium concentrate—Part 4:Determination of fluoride content—ISE
GB/T 23513.4-2009 Chemical analysis methods for germanium concentrate—Part 4:Determination of fluoride content—ISE
Basic Information
Standard Code:
GB/T 23513.4-2009
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
\nRare dispersed metals and their alloys
ICS Name:
Other non-ferrous metals and their alloys
Publish Date:
2009-04-08
Implement Date:
2010-02-01
Pages:
5 pages
Scope
This part of GB/T 23513 specifies the method for determining the fluoride content in germanium concentrate.
This part is applicable to the determination of the fluoride content in germanium concentrate. The measurement range is 0.01% to 1.0%.
Development Information
Same series standard
GB/T 23513.1-2009 Chemical analysis methods for germanium concentrate—Part 1:Determination of germanium content—Potassium iodate titration
GB/T 23513.2-2009 Chemical analysis methods for germanium concentrate—Part 2:Determination of arsenic content—Ferrous ammonium sulfate titration
GB/T 23513.3-2009 Chemical analysis methods for germanium concentrate—Part 3:Determination of sulfur content—Barium sulfate gravimetry
GB/T 23513.5-2009 Chemical analysis methods for germanium concentrate—Part 5:Determination of silica content—Gravimetry
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