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Key points that chemical industry workers must know and master to ensure safe operations Chemical industry workers are the most direct participants in chemical production. The safety level of a company depends to a large extent on the overall safety skills of its chemical operators, as well as on how well the employees in each position understand the key points they need to be aware of. Regarding chemical production positions (teams), the author believes that to ensure safe operations, employees in these positions (teams) should at least master the following key points that are essential to know and be able to apply. 1) The physical and chemical properties of the materials used in this position and team, as well as the possible consequences that may occur in case of impact or abnormal reactions, along with emergency response measures. 2) The toxicity of the materials used in this position and team, as well as the maximum allowable concentrations in the workplace, and the safety technical measures to be taken to prevent these concentrations from exceeding the allowed levels. 3) The technical specifications and requirements for raw materials and fuels in this position/crew, the possible consequences resulting from the presence of other impurities, and the measures to address them. 4) The potential dust explosion hazards at the work site and their prevention and control measures. 5) What are the non-removable flammable substances in and around the workplace for this position, and what preventive measures should be taken during production to prevent their combustion? 6) Various hazardous by-products that may arise during the production process, as well as the preventive measures to be taken to avoid their formation. 7) Consequences that may arise when one or more raw materials cannot be fed into the reaction vessel in a timely manner during continuous production, as well as preventive or remedial measures. 8) What is the stability of various materials (raw materials, products, semi-finished products) during storage? Do they tend to catch fire spontaneously, polymerize on their own, or decompose? What preventive or corrective measures need to be taken to avoid such phenomena? 9) What are the dust control, gas prevention, explosion protection, or fire-fighting facilities currently in place at the work site, and what are the key points for their daily maintenance and use? 10) Various potential dangers that may arise from accidental operations, the various consequences that can occur when process parameters approach the established upper and lower limits, and the preventive or corrective measures to be taken to avoid such situations. 11) What combustible or explosive mixtures may be generated when the production system is operating abnormally, and how to prevent them or handle them in an emergency. 12) What preventive measures should be taken for operations near the flash point? 13) What are the reaction speeds under normal and abnormal conditions, and how can abnormal phenomena such as abnormal temperatures, pressures, reactions, contamination by impurities, flow blockages, and leaks be prevented? Upon discovering the aforementioned phenomenon, what emergency measures need to be taken? 14) What consequences can occur when various rotating equipment such as fans, pumps, and mixers fail, and what are the preventive and emergency response measures? 15) What are the consequences of blockages in operating equipment or pipelines, and how can they be prevented or dealt with urgently? 16) What kind of dangerous situation will arise inside the device in the event of a fire outside the production system, and how should it be handled urgently? 17) What are the safety devices for various equipment in this position, and what are the key points for their maintenance? 18) What materials may leak in the event of damage to the glass viewports, glass level gauges, various flange connections, and other devices at the work site, or if these connections are not secure? What are the emergency measures to take? 19) What consequences can arise when various level gauges, indicating instruments, recording devices, and other measuring instruments in production provide inaccurate readings or records? What are the preventive, corrective, or emergency measures available? 20) When some instruments and meters in the production system fail, how can we ensure that the production system continues to operate safely and steadily? 21) What are the key points of various accident plans for this team and position, under what circumstances are these plans implemented, and what are the specific procedures for their implementation?