1. Standard test method for plane-strain fracture toughness testing of metallic materials;ASTM E 399-90 (reapproved 1997),2005
2. Rules and Regulations Title 10 Code of Federal Regulations Part 50.61. Appendix G. Fracture toughness requirements for protection against pressurized thermal shock events. Washington (DC): US Government Printing Office/US Nuclear Regulatory Commission; 1986.
3. ASME boiler and pressure vessel code, Section III;ASME,1986
4. ASME. ASME boiler and pressure vessel code. Section XI. Inservice inspection of nuclear power plant. American Society for Mechanical Engineers; 1995.
5. Regulatory Guide 1.99-rev 2. Radiation embrittlement to reactor pressure vessel materials. Washington (DC): US Government Printing Office/US Nuclear Regulatory Commission; 1988).