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| Chinese National Standard Category: Electrochemical power source |
| English Title: | Proton exchange membrane fuel cell—Part 4: Test method for electrocatalysts |
| Chinese Title: | 质子交换膜燃料电池 第4部分：电催化剂测试方法 |
| Standard No.: | GB/T 20042.4-2025 |
| Category No.: | K82 |
| 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| Superseded by: | |
| Superseded on: | |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 20042.4-2009 Proton exchange membrane fuel cell - Part 4: Test method for electrocatalysts |
| Word Count: | 14000 words |
| Similar Standards: |
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