GB/T 13840-1992
Abolished
GB/T 40798-2021
Active
National standards
GB/T 40798-2021 Chemical analysis method of ion-adsorption rare earth ore—Determination of total rare earth contents—Inductively coupled plasma mass spectrometry
GB/T 40798-2021 Chemical analysis method of ion-adsorption rare earth ore—Determination of total rare earth contents—Inductively coupled plasma mass spectrometry
Basic Information
Standard Code:
GB/T 40798-2021
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:
2021-10-11
Implement Date:
2022-05-01
Pages:
8 pages
Scope
This document specifies the method for determining the total rare earth content in ionic rare earth ores.
This document is applicable to the determination of the total rare earth content in ionic rare earth ores. The measurement range (mass fraction): 0.010%~0.50%.
Development Information
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