This research aims to improve the process of purchasing spare parts for petrochemical plants, more efficient. From the collection of statistics in the period of 1998 2555 (2012) procurement jobs. All 43,797 items divided into four product categories: category (Mechanical), a mechanical, electrical and Instrumentation products Division (Electrical and Instrument), General product categories and security (Admin and Safety) and product categories that are used in the laboratory and chemical (Chemical and Lab), which found that the mechanical product categories, there were sessions on average performance equal to 31.There are 88 days and most order quantity is the number of 21,706 items or accounted for 50% of this year's procurement will be considered both 2555 (2012) in conjunction with the statistics of the frequency of occurrence and the severity of the impact. By the experts of the relevant authorities. To supply agencies have made to brainstorm from the experts of the relevant authorities. For problems that can cause the session to work with for long periods of time, which is the number of total 26 items. I found that there are 6 entries in a high impact level. After that, those problems were analyzed to find the cause of the problem with the map shows cause and effect. (Cause and Effect Diagram) and Why Why principle Analysis. Includes ECRS training to educate employees and projects or activities between the relevant authorities. By having a meeting to plan the work.
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