GB/T 3879-1983
Replaced
GB/T 13390-2008
Active
National standards
GB/T 13390-2008 Metallic powder—Determination of the specific surface area—Method of nitrogen adsorption
GB/T 13390-2008 Metallic powder—Determination of the specific surface area—Method of nitrogen adsorption
Basic Information
Standard Code:
GB/T 13390-2008
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Analytical methods for powder metallurgy
ICS Name:
Powder metallurgy
Publish Date:
2008-03-31
Implement Date:
2008-09-01
Pages:
11 pages
Scope
This standard specifies the method for determining the specific surface area of metal powders. This standard is applicable to the determination of the specific surface area of metal powders. The measurement range is 0.1 m2/g to 1,000 m2/g. The specific surface area of non-metallic powders and microporous materials can also be used for reference. The specific surface area determined by this standard is the total specific surface area of the powder, including the specific surface area of any openings that nitrogen molecules can enter into the powder body; it is different from the specific surface area determined by the air permeation method, which refers to the envelope surface area.
Development Information
Replace the following standards
Referenced Standards
Related Standards
GB/T 4309-1984
Replaced
GB/T 4309-1984 Classification and designation for powder metallurgy materials
GB/T 5124.1-1985
Replaced
GB/T 5124.1-1985 Methods for chemical analysis of hardmetals—The gravimetric method for the determination of total carbon content
GB/T 5124.2-1985
Replaced
GB/T 5124.2-1985 Methods for chemical analysis of hardmetals—The gravimetric method for the determination of free(insoluble) carbon content
GB/T 5124.3-1985
Replaced
GB/T 5124.3-1985 Methods for chemical analysis of hardmetals—The potentiometric method for the determination of cobalt content
GB/T 5124.4-1985
Replaced