GB/T 13840-1992
Abolished
XB/T 634-2025
Active
Industry standards-Rare earths
XB/T 634-2025 The Chemical Analysis Methods of Praseodymium and Neodymium - Determination of Carbon, Iron, Molybdenum, Aluminum, Silicon and Praseodymium Content - Spark Discharge Atomic Emission Spectroscopy
XB/T 634-2025 The Chemical Analysis Methods of Praseodymium and Neodymium - Determination of Carbon, Iron, Molybdenum, Aluminum, Silicon and Praseodymium Content - Spark Discharge Atomic Emission Spectroscopy
Basic Information
Standard Code:
XB/T 634-2025
Standard Type:
Industry 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:
2025-08-19
Implement Date:
2026-03-01
Publisher:
工业和信息化部
Development Information
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