GB/T 13840-1992
Abolished
GB/T 26019-2010
Active
National standards
GB/T 26019-2010 Methods for chemical analysis of high impurity tungsten mineral—Determination of tungsten trioxide content—Twice separation and igniting gravimetric method
GB/T 26019-2010 Methods for chemical analysis of high impurity tungsten mineral—Determination of tungsten trioxide content—Twice separation and igniting gravimetric method
Basic Information
Standard Code:
GB/T 26019-2010
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:
2011-01-10
Implement Date:
2011-10-01
Pages:
7 pages
Scope
This standard specifies the determination of the amount of tungsten trioxide in high-impurity tungsten ores.
This standard is applicable to the determination of the amount of tungsten trioxide in tungsten ores with a phosphorus content of less than 2%, a titanium content of less than 1%, and a tin content of less than 2%. The range of tungsten trioxide determination is: more than 20%.
Development Information
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