GB/T 18882.3-2019 Active
GB/T 18882.3-2019 Chemical analysis methods for mixed rare earth oxide of ion-adsorption rare earth ore—Part 3:Determination of silicon dioxide content
Abstract
This part of GB/T 18882 specifies the determination method for the silicon dioxide content in mixed rare earth oxides from ionic rare earth ores.
This part is applicable to the determination of silicon dioxide content in mixed rare earth oxides from ionic rare earth ores, and it includes two methods. Method 1 is the spectrophotometry method, and Method 2 is the gravimetric method. The determination range (mass fraction) of Method 1 is 0.10%~2.00%; the determination range (mass fraction) of Method 2 is 1.00%~5.00%. When the determination ranges of the two methods overlap, Method 1 is used as the arbitration method.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 18882.3-2019 |
| CCS | Analysis methods for rare metals and their alloys |
| ICS | Other non-ferrous metals and their alloys |
| Implement Date | 2020-07-01 |