Abstract
American Petroleum Institute (API) proposed the first Risk Based Inspection (RBI) method for petroleum refinery industries in 1996. Since that time, the interest in RBI was growing also in Japan resulted that “RBM Specialty Study Committee” was built in High Pressure Institute of Japan (HPI) as the first Japanese study organization of Risk Based Maintenance (RBM) in 2001. Following the issue of preliminary version of RBI standard in 1996, API issued the first edition of “API Publication 581 (API581) ”in 2000 as the first practical RBI standard in the world. API also issued“API RP580 (API580) ”as the recommended practice of general procedure for RBI application. On the other hand, new RBI project named “Risk Based Inspection and Maintenance Procedures (RIMAP) ”was established in 2001 in Europe and started to make the original procedure of RBM or RBI. The results of RIMAP are supposed to be released to public in 2006 as CEN Workshop Agreement. These works in USA and Europe are targeted to produce the suitable standard of RBM to their countries and improve the international competitiveness of their industries. Such kind of work is also important to Japanese industries to keep safety and compete with them. We, as the members of RBM Specialty Study Committee, studied API 581, API580 and RIMAP and are trying to make the Japanese version of RBM standard. In this paper, we introduce API 581 and RIMAP comparing their characteristic points of procedures.