

| KS B 1522 | Steel Butt-Welding Pipe Fittings for Ordinary use. |
|---|---|
| KS B 1541 | Steel Butt-Welding Pipe Fittings. |
| KS B 1543 | Steel Plate Butt-Welding Pipe Fittings. |
| JIS B 2311 | Steel Butt-Welding Pipe Fittings for Ordinary use. |
|---|---|
| JIS B 2312 | Steel Butt-Welding Pipe Fittings |
| JIS B 2313 | Steel Plate Butt-Welding Pipe Fittings |
| ANSI B 16.9 | Factory Made Wrought Steel Butt-Welding Fittings |
|---|---|
| ANSI B 16.25 | Butt-Welding Ends |
| ANSI B 16.28 | Wrought Steel Butt-Welding Short Radious Elbows andReturns |
| ANSI B 36.10 | Welded and Seamless Wrought Steel Pipe |
| ANSI B 36.19 | Stainless Steel Pipe |
| ASTM A 234 | Piping Fittings of Wrought Carbon Steel and Alloy Steel for Mderate and Elevated Temperature. |
|---|---|
| ASTM A 350 | Forgings Carbon and Low-Alloy Steel, Requiring Notch Toughness Testing for piping Components |
| ASTM A 403 | Wrought Austenitic Stainless Steel PiPing Fittings |
| ASTM A 420 | Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service |
| ASTM A 815 | Specification for Wrought Ferritic, Ferrite/ Austenitic, and Martensitic Stainless Steel Piping Fittings |
| MSS SP-25 | Standard Marking System for Valves, Fittings, Flanges and Unions |
|---|---|
| MSS SP-43 | Wrought Stainless Steel Butt-Welding Fittings |
| MSS SP-44 | Steel Pipe Line flanges |
| MSS SP-75 | Specification for High Test Wrought Butt-Welding Fittings |
| MSS SP-79 | Socket Welding Reducer inserts |
| MSS SP-83 | Carbon Steel Pipe Unions Socket-Welding and Threaded |
| MSS SP-87 | Factory-made Butt-Welding Fittingsfor Class 1 Nuclear Piping Applications |
| MSS SP-95 | Swage(d) Nipples and BullPlugs |
| MSS SP-97 | integrally Reinforced Forged Branch Outlet Fittings-socket Welding, Threaded and Butt Welding Ends |
| ASME SECTION Ⅱ | Materials |
|---|---|
| ASME SECTION Ⅲ | Subsection NCA / Division 1 / Division 2 |
| ASME SECTION Ⅴ | Nondestructive Examination |
| ASME SECTION Ⅷ | Rules for Construction of Pressure Vessels / Division 1, Division 2 |
| ASME SECTION Ⅸ | Welding and Brazing Qualifications |
| KEPIC MN | Nuclear Components |
|---|
| API 5L | Line Pipe |
|---|---|
| API 5LX | High Test Line Pipe |