TSG D7001-2005 Pressure Pipe Unit Manufacture Supervision Inspection Regulation (Submerged-arac Welding Steel Pipe and Polyethylene Pipe)
This rule applies to the manufacturing and inspection of submerged arc welded steel pipes (spiral seam submerged arc welded steel pipes, straight seam submerged arc welded steel pipes, and double seam submerged arc welded steel pipes, hereinafter the same) and polyethylene pipes, as referred to in the Regulations