GB/T 13840-1992
Abolished
GB/T 4324.8-2008
Active
National standards
GB/T 4324.8-2008 Methods for chemical analysis of tungsten—Determination of nickel content—The inductively coupled plasma atomic emission spectrometry、flame atomic absorption spectrometry and dimethylglyoxime gravimetry
GB/T 4324.8-2008 Methods for chemical analysis of tungsten—Determination of nickel content—The inductively coupled plasma atomic emission spectrometry、flame atomic absorption spectrometry and dimethylglyoxime gravimetry
Basic Information
Standard Code:
GB/T 4324.8-2008
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Rare high-melting-point metals and their alloys
ICS Name:
Other non-ferrous metals and their alloys
Publish Date:
2008-06-09
Implement Date:
2008-12-01
Pages:
10 pages
Scope
This method specifies the determination method for the nickel content in tungsten powder, tungsten rods, tungsten carbide, tungsten trioxide, tungstic acid, blue tungsten, purple tungsten, ammonium para-tungstate, and ammonium metatungstate. This method is suitable for the determination of nickel content in tungsten powder, tungsten rods, tungsten carbide, tungsten trioxide, tungstic acid, blue tungsten, purple tungsten, ammonium para-tungstate, and ammonium metatungstate. The determination range is 0.0004% to 0.050%.
Development Information
Same series standard
GB/T 4324.13-2008 Methods for chemical analysis of tungsten—Determination of calcium content—The inductively coupled plasma atomic emission spectrometry
GB/T 4324.15-2008 Methods for chemical analysis of tungsten—Determination of magnesium content—The flame atomic absorption spectrometry and inductively coupled plasma atomic emission spectrometry
Replace the following standards
GB/T 4324.8-1984
GB/T 4324.9-1984
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