Hazard risk potential analysis using the fuzzy bow-tie method in LPG tube filling factory

The activity of refueling LPG is an activity that has a potential risk of hazards causing occupational diseases and accidents. The potential risk of danger cannot be separated from several factors caused by negligence or non-compliance of workers with K3 procedures. So a risk management is needed as a form of control over potential hazard risks. This research uses the Hazard Identification, Risk Assessment, and Risk Control (HIRARC) method with the aim of identifying risks, the factors that cause and the impact of these risks. Further analysis is carried out in the form of a combination of Fuzzy Bow-tie lean manufacturing framework. The Bow-tie model is designed to consider the risk factors that can cause risk with the fault tree, and then the impact of the risk is described in the event tree. Then fuzzy analysis is used to calculate the probability of the factors and impacts that occur. And the last one uses a risk matrix to determine potential risks. In this study, there are 5 main risks identified with a total of 13 factors and 12 risk impacts. The priority risks are at the High Risk level, namely, fire risk and gas exposure risk. Risk at the High Risk (priority) level recommends mitigation recommendations in the form of preventive and protective actions. The contribution of this research in the academic field, namely how to use the HIRARC method and the fuzzy bow-tie analysis in mapping and determining priority risk in a company. Meanwhile, for companies this research can be used as a reference to assist companies in controlling and anticipating potential hazards.