GB/T 13840-1992
Abolished
GB/T 4414-2013
Active
National standards
GB/T 4414-2013 Methods of sampling and sample preparation of tungsten concentrates in bags
GB/T 4414-2013 Methods of sampling and sample preparation of tungsten concentrates in bags
Basic Information
Standard Code:
GB/T 4414-2013
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:
2013-11-27
Implement Date:
2014-08-01
Pages:
10 pages
Scope
This standard specifies the general requirements, sampling, and sample preparation methods for packaging black tungsten concentrates (wolframite, tungstenite, and wolframite) and white tungsten concentrates (calcium tungstate).
This standard applies to the sampling and preparation of samples for determining the chemical composition and moisture content of packaged black tungsten concentrates (wolframite, tungstenite, and wolframite) and white tungsten concentrates (calcium tungstate).
Development Information
Replace the following standards
Referenced Standards
GB/T 2007.1-1987 General rules for the sampling and sample preparation of minerals in bulk—Sampling by manual method
GB/T 2007.2-1987 General rules for the sampling and sample preparation of minerals in bulk Sample preparation by manual method
GB/T 2007.3-1987 General rules for the sampling and sample preparation of minerals in bulk—Experimental method for evaluation of quality variation
GB/T 2007.4-1987 General rules for the sampling and sample preparation of minerals in bulk—Experimental methods for checking the precision
GB/T 2007.4-2008 General rules for the sampling and sample preparation of minerals in bulk—Experimental methods for checking the precision and bias
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