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GB/T 12690.1-2022 Active
GB/T 12690.1-2022 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 1:Determination of carbon and sulfur contents—High frequency-infrared absorption method
Abstract
This document describes the method for determining the carbon and sulfur content in rare earth metals and their oxides. This document is applicable to the determination of the carbon and sulfur content in rare earth metals and their oxides. The measurement range (mass fraction): carbon 0.0020%~1.00%; sulfur 0.0020%~0.20%.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 12690.1-2022 |
| CCS | Analysis methods for rare metals and their alloys |
| ICS | Other non-ferrous metals and their alloys |
| Implement Date | 2023-07-01 |
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