1. Subjective method:
Subjective method is to identify dangerous and harmful factors according to personal experience and judgment. This method relies on the knowledge, experience and intuition of the personnel engaged in the work, and there are no clear regulations and standards. Although the subjective method may be effective in some cases, it is easily influenced by supervisors, personal prejudices and subjective opinions.
2. Objective methods:
The objective method is to identify dangerous and harmful factors according to scientific principles and data. This method adopts a systematic method to evaluate potential hazards and risk factors by collecting and analyzing relevant data. Objective method provides a reliable and repeatable method to determine dangerous and harmful factors, and can be adjusted and applied according to different working environments and conditions.
Two common techniques of objective methods: activity analysis and risk assessment.
Activity-based analysis is a method to determine the dangerous and harmful factors by studying the workflow and operation steps in detail. It includes the following steps:
Determine the tasks and operation steps; Identify potential hazards and risk factors; Assess the severity of hazards and risks; Take control measures and management strategies.
Risk assessment method evaluates potential hazards and risk factors by quantitative or qualitative methods. It includes the following steps: identifying possible dangers; Assess the possibility and severity of the danger; Calculating a risk value; Formulate appropriate control measures.
In practical application, subjective and objective methods are usually used to identify dangerous and harmful factors. Subjective methods can provide judgments based on personal experience and intuition, while objective methods provide evaluation means supported by scientific principles and data. Through the comprehensive application of these two methods, we can identify and evaluate the dangers and risks in the work more accurately, and take corresponding control measures to ensure the safety and health of the working environment.