GB/T 13840-1992
Abolished
GB/T 12690.1-2022
Active
National standards
GB/T 12690.1-2022 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 1:Determination of carbon and sulfur contents—High frequency-infrared absorption method
GB/T 12690.1-2022 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 1:Determination of carbon and sulfur contents—High frequency-infrared absorption method
Price:
$ 50
Basic Information
Standard Code:
GB/T 12690.1-2022
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Analysis methods for rare metals and their alloys
ICS Name:
Other non-ferrous metals and their alloys
Publish Date:
2022-12-30
Implement Date:
2023-07-01
Pages:
8 pages
Scope
This document describes the method for determining the carbon and sulfur content in rare earth metals and their oxides. This document is applicable to the determination of the carbon and sulfur content in rare earth metals and their oxides. The measurement range (mass fraction): carbon 0.0020%~1.00%; sulfur 0.0020%~0.20%.
Development Information
Replace the following standards
Referenced Standards
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