| KS : KOREAN INDUSTRIAL STANDARD |
| KS B 1543 |
Steel Plate Butt Welding Pipe Fittings. |
| JIS : JAPANESE INDUSTRIAL STANDARD |
| JIS B 2312 |
Steel Butt Welding Pipe Fittings. |
| JIS B 2313 |
Steel Plate Butt Welding Pipe Fittings. |
| ANSI : AMERICAN NATIONAL STANDARD INSTITUTE |
| ANSI B 16.9 |
Factory Made Wrought Steel Butt Welding Fittings |
| ANSI B 16.25 |
Butt Welding Ends |
| ANSI B 36.10 |
Welded and Seamless Wrought Steel Pipe |
| ANSI B 36.19 |
Stainless Steel Pipe |
| ASTM : AMERICAN SOCIETY FOR TESTING AND MATERIALS |
| ASTM A 403 |
Wrought Austenitic Stainless Steel Piping Fittings |
| ASTM A 815 |
Wrought Ferritic, Ferrite/ Austenitic, and Martensitic Stainless steel Piping Fittings |
| ASTM A 860 |
Wrought High-Strength Low-Alloy steel Butt Welding Fittings |
| ASTM B 366 |
Factory-Made Wrought Nickel and Nickel Alloy Fittings |
| ASTM B 363 |
Seamless and Welded Unalloyed Titanium and Titanium Alloy Welding Fittings |
| MSS : MANUFACRURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTING INDUSTRY |
| MSS SP-25 |
Standard Marking System for Valves, Fittings, Flanges and Unions. |
| MSS SP-43 |
Wrought Stainless Steel Butt Welding Fittings. |
| MSS SP-75 |
Specification for High Test Wrought Butt Welding Fittings |
| ASME : AMERICAN SOCIETY OF MECHANICAL ENGINEERS |
| ASME SECTION Ⅱ |
Materials |
| ASME SECTION Ⅲ |
Rules for Construction if Nuclear Facitity Components. |
| ASME SECTION Ⅴ |
Nondestructive Examination. |
| ASME SECTION Ⅷ |
Rules for Construction of Pressure Vessels |
| ASME SECTION Ⅸ |
Welding and Brazing Qualifications |
