GB/T 17229-1998
Active
GB/T 20899.9-2025
Active
National standards
GB/T 20899.9-2025 Methods for chemical analysis of gold ores—Part 9:Determination of carbon content
GB/T 20899.9-2025 Methods for chemical analysis of gold ores—Part 9:Determination of carbon content
Basic Information
Standard Code:
GB/T 20899.9-2025
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Precious metal mine
ICS Name:
Other metal mines
Publish Date:
2025-06-30
Implement Date:
2026-01-01
Pages:
16 pages
Scope
This document specifies the method for determining the carbon content in gold ores.
This document is applicable to the determination of carbon content in gold ores.
Method 1: Non-aqueous titration method, determination range: 0.10% to 5.00%;
Method 2: High-frequency combustion infrared absorption method, determination range: 0.02% to 5.00%.
Development Information
Same series standard
Replace the following standards
Referenced Standards
Related Standards
GB/T 18114.10-2000
Replaced
GB/T 18114.10-2000 Methods for chemical analysis of monazite concentrates—Determination of water content
GB/T 18114.1-2000
Replaced
GB/T 18114.1-2000 Methods for chemical analysis of monazite concentrates—Determination of total rare earth and thorium oxide content
GB/T 18114.2-2000
Replaced
GB/T 18114.2-2000 Methods for chemical analysis of monazite concentrates—Determination of thorium oxide content
GB/T 18114.3-2000
Replaced
GB/T 18114.3-2000 Methods for chemical analysis of monazite concentrates—Determination of calcium oxide content
GB/T 18114.4-2000
Replaced