“Two key points and one major issue”

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“\"Two key points and one major hazard\" refers to the hazardous chemical processes that are under strict supervision, the hazardous chemicals that are under strict supervision, and the major hazard sources – collectively referred to as \"two key points and one major hazard\". Emphasizing the safety concept of \"focusing on key points and strengthening supervision\" is an important measure to promote safe production management in enterprises. The 18 hazardous chemical processes subject to strict supervision were announced in two batches in 2009 and 2013. The first batch includes 15 hazardous chemical processes that are under strict supervision, such as phosgene and phosgenation processes, electrolysis processes (chlor-alkali), chlorination processes, nitration processes, ammonia synthesis processes, cracking processes, fluorination processes, hydrogen-related processes, diazotization processes, oxidation processes, peroxidation processes, amination processes, polymerization processes, and alkylation processes. It also covers the safety control requirements for these processes, the key parameters to be monitored, and recommended control strategies. Batch 2: Three types of hazardous chemical processes that are under strict supervision, including new coal chemical processing technologies, calcium carbide production processes, and azotization processes, along with their safety control requirements, key monitoring parameters, and recommended control schemes. 74 types of hazardous chemicals subject to strict supervision; those that are commonly encountered in production and are under strict regulatory control. Such as: chlorine, ammonia, liquefied petroleum gas, hydrogen sulfide, methane, natural gas, crude oil, gasoline (including methanol-based and ethanol-based gasoline), naphtha hydrogen, benzene (including crude benzene), sulfur dioxide, carbon monoxide, methanol, sodium chlorate, nitrocellulose, etc. The standard \"Identification of Major Hazardous Sources of Hazardous Chemicals\" (GB18218-2018) provides detailed information on the hazardous chemicals that constitute major hazardous sources along with their critical quantities, the criteria for identifying such sources, the indicators used for identification, the classification of major hazardous sources, and the process for identifying them.