Hazard level analysis and risk analysis

　Based on the identified hazardous and harmful factors, appropriate safety assessment methods are employed to qualitatively and quantitatively analyze and predict the following aspects for each safety assessment unit: 1. The possibility of chemical leaks with explosive, flammable, toxic, or corrosive properties occurring in the construction project； 　　⒉After a leak of explosive or flammable chemicals occurs, the conditions and time required for explosions and fires to occur are established ； 　　⒊The spread rate of toxic chemical leaks and the time it takes for them to reach human exposure limits ； 　　⒋The area affected by explosions, fires, or poisoning incidents that result in casualties. (1) Qualitative safety assessment methods: Qualitative safety assessment methods involve a qualitative analysis of the conditions related to the processes, equipment, facilities, environment, personnel, and management aspects of a production system, based on experience and intuitive judgment. The results of such assessments are qualitative indicators, such as whether certain safety standards have been met, the type of accident that may occur, and the factors that lead to those accidents. Qualitative safety assessment methods include safety checklists, expert on-site inquiry and observation methods, factor diagram analysis, accident initiation and development analysis, job hazard analysis (Graham-Kinnear method or LEC method), failure mode and effects analysis, and hazard operability studies. (2) Quantitative safety assessment methods: Quantitative safety assessment methods involve the use of indicators or patterns (mathematical models) derived from extensive experimental results and comprehensive statistical analyses of accident data, to conduct quantitative evaluations of various aspects of a production system such as its processes, equipment, facilities, environment, personnel, and management. The results of such safety assessments are quantitative indicators, including the probability of accidents occurring, the extent of damage caused by accidents, the quantitative level of risk, as well as the relevance or importance of factors that contribute to accidents.

The solution upstairs is simple – just apply the detailed instructions and that’s it – but it doesn’t address the original problem at all. Regarding this issue, there was a lot of discussion on the forum when the detailed rules were first introduced. You can refer to the following posts: http://bbs.hcbbs.com/viewthread.php?tid=367394&highlight=%CE%A3%CF%D5%B3%CC%B6%C8 http://bbs.hcbbs.com/viewthread.php?tid=160381

The way the original poster asks questions really makes it impossible to answer. One can look up information on their own, and there are also many discussions on forums. If you encounter specific questions you don’t understand, raise them for everyone to discuss. By raising such a big question, does that mean one has to listen from start to finish?

The problem itself is flawed, which is why some oddities in LS occur