Chemical safety knowledge

Jul 09, 2024|

Chemical safety knowledge
1. Hazard sources

Answer: Hazard sources refer to the root causes or state factors that may cause personal injury or disease, material and property damage, work environment damage, or a combination of these situations.

2. Major hazard sources

Answer: Major hazard sources refer to units that produce, use, store, or operate hazardous substances for a long time or temporarily, and the quantity of hazardous substances is equal to or exceeds the critical quantity. Units are divided into production units and storage units. Production units are judged based on shut-off valves, while storage units are classified based on fire embankments.

3. What are the three types of respirators?

Answer: It is divided into three types: dust prevention, gas prevention, and oxygen supply.

4. What are the four basic characteristics of accidents?

Answer: Causality, randomness, latency, and preventability.

5. What do "three violations" refer to?

Answer: Violations of command, operation, and labor discipline.

6. What does "Four No Harms" refer to?

Answer: Do not harm oneself, do not harm others, do not be harmed by others, and protect others from harm.

7. What are the "three treasures" of high-altitude operations?

Answer: It refers to safety helmets, seat belts, and safety nets.

8. What are the direct sources of fire that can cause a fire?

Answer: There are three types: open flames, electric sparks, and lightning strikes.

9. What are the three types of explosions that can be classified into?

Answer: Physical explosion, chemical explosion, atomic (nuclear) explosion.

10. What is special operation?

Answer: Operations that can pose significant risks to the safety of the operator, others, and surrounding facilities.

11. What is the "four no let go" principle for accident handling?

Answer: We will not let go if the cause of the accident is not identified, if the person responsible for the accident is not dealt with, if the general public is not educated, and if preventive measures are not implemented.

12. What are the safety accessories for pressure vessels?

Answer: There are mainly safety valves, bursting discs, fusible plugs, pressure gauges, thermometers, level gauges, emergency shut-off valves, and emergency discharge devices.

13. What are the three major characteristics of static electricity?

Answer: High voltage, prominent electrostatic induction, and severe discharge at the protruding end.

 

 

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