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| Chinese National Standard Category: Basic standards and general methods for synthetic resin and plastic |
| English Title: | Plastics—Determination of burning behaviour by oxygen index—Part 4: High gas velocity test |
| Chinese Title: | 塑料 用氧指数法测定燃烧行为 第4部分：高气体流速试验 |
| Standard No.: | GB/T 2406.4-2025 |
| Category No.: | G31 |
| Issued by: | SAMR;SAC |
| Issued on: | 2025-12-2 |
| Implemented on: | 2026-7-1 |
| Status: | to be valid |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | |
| Superseding: | |
| Word Count: | 14500 words |
| Similar Standards: |
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