'Thỏ ơi' vượt mốc 200 tỷ đồng
21 Tháng 2, 2026
Testing individual welders to verify they can successfully execute a qualified procedure.
Documented proof that a specific procedure produces sound welds through mechanical testing.
The aggregate length of all imperfections cannot exceed 2 in. (50 mm) in any continuous 12 in. section. 🔄 Recent Updates (22nd Edition) The latest version introduced several substantive changes:
The standard covers the entire lifecycle of a pipeline weld to ensure safety and compliance:




