Home / Standards / GB/T 44527-2024 GB/T 44527-2024 Active Qualification testing of diver-welders and welding operators for underwater hyperbaric dry welding 水下高压干式焊接潜水焊工和焊接操作工技能评定 Standard Type GBT ICS 25.160.01 CCS J33 Status 现行 Issue Date 2024-09-29 Implementation 2025-04-01 Responsible Dept 国家标准委 Drafting Unit N/A