Hazard identification is the process of identifying hazards and determining their characteristics. Hazard identification is mainly to identify hazards, judge their nature, prevent possible hazards and impacts in advance, and ensure the safety and stability of production.
Hazard source refers to the position, area, place, space, post, equipment and its location where there are potential energy and substances in the system, which can cause personal injury, property loss or environmental damage and can be transformed into accidents under the action of certain triggering factors.
Risk factors refer to factors that can cause casualties or sudden damage to articles. Identification of hazardous factors is a process to determine the existence and size of hazardous factors, which is generally called hazardous factors.
Hazard identification method
1, ask and chat.
People who are experienced in a certain job can often point out the hazards in the work. You can find out the danger source by asking and talking.
2. Questionnaire survey
Through a series of questions prepared in advance, please ask the relevant personnel to fill in the questionnaire, and you can get the information about the hazards.
3. Field observation
By observing the working environment, we can find the existing hazards. Observers must have certain knowledge of safety technology and understand relevant laws and regulations.
4, access to relevant records
Check the accident and occupational disease records of the unit to find out the hazards.
Step 5 Get external information
Obtain information about dangerous sources from similar units, literature, teachers' consultation, etc. And analyze it, you can identify the hazards existing in this unit.
6. Task analysis
By analyzing the hazards involved in completing the task, we can identify the related hazards.
7. Safety list
Using the prepared safety checklist, the safety of the device can be systematically checked and the existing dangers can be identified.
8, risk and operability research
Hazard and operability research is a technology to strictly check and control hazards in the process.
9. Event tree analysis
Event tree analysis is a method to analyze the development and change process of "success (normal) or failure (failure)" in each link from the initial cause events, and to predict various possible results, that is, time series logic analysis and judgment method. By analyzing the events in each link of the system in this way, the hazards of the system can be identified.
10, fault tree analysis
Fault tree analysis is a method to find the causes, conditions and laws related to accidents according to the possible or existing accidents of the system. Through process analysis, identify the dangers that lead to accidents in the system.