GB/T 3879-1983
Replaced
GB/T 4164-2008
Active
National standards
GB/T 4164-2008 Metallic powders—Determination of hydrogen reducible oxygen content
GB/T 4164-2008 Metallic powders—Determination of hydrogen reducible oxygen content
Basic Information
Standard Code:
GB/T 4164-2008
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Powder metallurgy materials and products
ICS Name:
Powder metallurgy
Publish Date:
2008-08-11
Implement Date:
2009-02-01
Pages:
8 pages
Scope
This standard describes the method for determining the oxygen content (mass fraction) in metal powders with an oxygen content of 0.05% to 3% that can be reduced by hydrogen. This method is suitable for non-alloyed, partially alloyed, and fully alloyed metal powders, as well as mixtures of carbides and bonded metals. It is not suitable for powders containing lubricants or organic binders. By using a dedicated catalytic device, this method can be extended to the measurement of carbon-containing powders. ISO 4491 should be read in conjunction with ISO 760 and ISO 4491-1.
Development Information
Replace the following standards
Referenced Standards
ISO 760:1978
ISO 4491-1:1989
Adopt standards
ISO 4491-3:1997
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