Home / Standards / GB/T 29459.1-2025 GB/T 29459.1-2025 Active Small punch test methods of metallic materials for in-service pressure equipment—Part 1:General requirements 在役承压设备金属材料小冲杆试验方法 第1部分:总则 Standard Type GBT ICS 77.040.10 CCS H 22 Status 现行 Issue Date 2025-12-02 Implementation 2025-12-02 Responsible Dept 国家标准委 Drafting Unit N/A