GB/T 13840-1992
Abolished
GB/T 23522-2023
Active
National standards
GB/T 23522-2023 Germanium renewable raw materials
GB/T 23522-2023 Germanium renewable raw materials
Basic Information
Standard Code:
GB/T 23522-2023
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
\nRare dispersed metals and their alloys
ICS Name:
Other non-ferrous metals and their alloys
Publish Date:
2023-09-07
Implement Date:
2024-04-01
Pages:
12 pages
Scope
This document specifies the classification, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, accompanying documents, and order form content of recycled germanium raw materials.
This document is applicable to recycled germanium raw materials that can be recycled from the production, processing, and use of germanium.
Note: Recycled germanium raw materials are mainly used as raw materials for the production of high-purity germanium tetrachloride, high-purity germanium dioxide, zone-melted germanium ingots, germanium single crystals, and other products.
Development Information
Replace the following standards
Referenced Standards
GB/T 1480-1995 Determination of particle size for metallic powders—Dry sieving
GB/T 1480-2012 Metallic powders—Determination of particle size by dry sieving
GB/T 8170-1987 Rules for rounding off of numberical values
GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 23513.2-2009 Chemical analysis methods for germanium concentrate—Part 2:Determination of arsenic content—Ferrous ammonium sulfate titration
GB/T 23513.3-2009 Chemical analysis methods for germanium concentrate—Part 3:Determination of sulfur content—Barium sulfate gravimetry
GB/T 23513.4-2009 Chemical analysis methods for germanium concentrate—Part 4:Determination of fluoride content—ISE
GB/T 23513.5-2009 Chemical analysis methods for germanium concentrate—Part 5:Determination of silica content—Gravimetry
GB/T 1480-2025 Metallic powders—Determination of particle size by dry sieving
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