1. API 5L: Specification for Line Pipe,2004
2. ASME Boiler and Pressure Vessel Code,1962
3. ASME Boiler and Pressure Vessel Code; Section III. Division 1,1971
4. ASME Boiler and Pressure Vessel Code; Section III. Division 1 Par. 1430,1974
5. ASME Boiler and Pressure Vessel Code; Section XI. Division 2,1986