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| Chinese National Standard Category: Material Protection |
| English Title: | Metallic coatings - Review of porosity tests |
| Chinese Title: | 金属覆盖层 孔隙率试验评述 |
| Standard No.: | GB/T 17720-2025 |
| Category No.: | A29 |
| Issued by: | SAMR, SAC |
| Issued on: | 2025-10-31 |
| Implemented on: | 2026-5-1 |
| Status: | to be valid |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | |
| Superseding: | GB/T 17720-1999 Metallic coatings - Review of porosity tests |
| Word Count: | 21500 words |
| Similar Standards: | T/CSEA 1-2018 T/CSEA 7-2019 T/CSEA 8-2019 T/CSEA 9-2019 T/JSERS 4-2024 GB/T 17720-2025 GB/T 11372-2025 GB/T 9791-2025 GB/T 12333-2025 GB/T 11378-2025 GB/T 15821-2025 GB/T 6462-2025 GB/T 15748-2025 GB/T 18226-2025 T/CSEA 35-2025 GB/T 18570.9-2025 GB/T 4948-2025 GB/Z 45463-2025 TB/T 2260-2001 GB/T 44538-2024 |
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