5Swiss Federal Office of Energy. Severe Accidents in the Energy Sector[R], 1998.
6S. M. Tauseef, Tasneem Abbasi, S.A. Abbasi. Development of a new chemical process-industry accident database to assist in past accident analysis[J]. Journal of Loss Prevention in the Process Industries, 2011, 24(4): 426 -431.
7Center for Chemical Process Safety. Process Safety Incident Database[DB/OL]. [2011 -07 -20]. https ://www. psid- net. com/.