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| Chinese National Standard Category: Steel and iron alloy analysis method |
| English Title: | Ferronickel—Determination of carbon content—Infrared absorption method after induction furnace combustion |
| Chinese Title: | 镍铁 碳含量的测定 感应炉燃烧红外线吸收法 |
| Standard No.: | GB/T 21931.1-2025 |
| Category No.: | H11 |
| Issued by: | SAMR; SAC |
| Issued on: | 2025-8-29 |
| Implemented on: | 2026-3-1 |
| Status: | to be valid |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | |
| Superseding: | GB/T 21931.1-2008 Nickel ferronickel and nickel alloys - Determination of carbon content - Infrared absorption method after induction furnace combustion |
| Word Count: | 10500 words |
| Similar Standards: | GB/T 46323-2025 GB/T 3653.4-2025 GB/T 30072-2025 GB/T 21931.1-2025 GB/T 4699.8-2025 GB/T 4702.16-2025 GB/T 223.8-2025 GB/T 223.13-2025 GB/T 4699.2-2025 GB/T 21931.2-2025 GB/T 3654.10-2024 GB/T 3653.1-2024 GB/T 24194-2024 GB/T 43901-2024 GB/T 43899-2024 GB/T 4701.13-2024 GB/T 4701.12-2024 GB/T 223.60-2024 SN/T 5570-2023 GB/T 5686.9-2023 |
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