Seek information on acceptable risk criteria

Any form of evaluation involves acceptable levels of risk. Here is the owner’s evaluation method: http://bbs.hcbbs.com/thread-91616-1-44.html. Criteria for hazard identification and risk assessment – Risk level 0； R=6‑10 represents a relatively safe level, with a risk category of I; operational conditions need to be monitored. If monitoring fails, the risk level may increase ； A value of R=12–16 indicates a hazardous level, corresponding to risk category II; it is necessary to implement risk control measures in order to reduce this risk, aiming to lower it by at least one level ； R=20–25, risk level III, which is a high-risk level; risk control measures must be established to carry out immediate corrections in order to reduce the risk by at least one level. In short, all tasks with a risk level of 6 or higher need to be controlled. The higher the risk level, the greater the control measures and monitoring intensity. The posted image is a bit distorted; those who need more details should download the attachment.

We are conducting an RBI analysis of the system; there are established guidelines for classifying risk levels, and they are more or less similar. However, an acceptable risk is one that the enterprise can bear, that is, a risk whose existence is permitted. API 580 does not specify, nor can it specify, a uniform acceptable risk level; it merely emphasizes that each company may have its own risk criteria. In fact, the acceptable level of risk is related to a country’s level of social and economic development; it is not only connected to capabilities in risk control and various risk management techniques, but also to many aspects of that country’s superstructure. Therefore, it is difficult for a company to determine on its own what constitutes an acceptable level of risk. For example, a company can decide for itself how much profit it is willing to lose, but it cannot determine how many people it is willing to let die or what extent of environmental pollution it is willing to accept. Therefore, the acceptable risk should be determined by the relevant government departments and enterprise authorities by taking various factors into account. It is said that the petrochemical industry is conducting research in this area, so I am seeking the results of such research as well as any insights gained.