The risk assessment method is as follows

A, job hazard analysis method (JHA method)

1, which decomposes an operation activity into several connected processes;

2. Identify all potential risks in each process;

3. Develop control measures for each risk.

See the table below for details:

Job hazard analysis table

Operation Task: Work Location:

Analyst: Date:

Examiner: Date:

serial number

work

content

Harmful consequences

Existing security

Control measure

assessment result

Suggest corrective/preventive measures

L

S

F

risk level

Second, the safety checklist analysis method (SCL method)

1. First, decompose an inspection object and determine several small items to be inspected;

2, for each item, find the relevant information, determine the inspection standard;

3. For each inspection standard, determine the consequences of non-compliance;

4. Determine the existing control measures for each consequence;

5. For each existing control measure, formulate improvement control measures.

See the table below for details:

Safety inspection and analysis record form

Inspection process: inspection object:

Analyst: Date:

Examiner: Date:

serial number

inspection item

test standard

Consequences of not meeting the standards

Existing control measures

L

S

H

risk level

Suggest improvement measures

3. Hazard analysis of working conditions (LEC method)

For potentially hazardous working conditions, there are three main factors that will affect the hazard (d):

(1) Possibility of accidents or dangerous events,

(2) exposure to this dangerous environment,

(3) the possible consequences of an accident.

D = L× E× C

Among them:

D— Danger of operating conditions,

L—— Possibility of accidents or dangerous events,

E- frequency of exposure to dangerous environment,

C—— Possible results of accidents or dangerous events.

(1) The possibility (l) of accidents or dangerous events is as follows:

Fractional value

Possibility of accident

10

Will be completely expected.

six

stand a good chance

three

Not often, but maybe.

1

Completely unexpected, almost impossible.

0.5

As you can imagine, this is very impossible.

0.2

Extremely impossible

0. 1

This is almost impossible.

(2) The frequency of exposure to hazardous environment (e) is as follows:

Fractional value

Frequency of exposure to dangerous environment

10

Continuous exposure to potentially dangerous environment

six

Exposure of daily working hours

three

Once a week or occasionally exposed

2

Exposure once a month

1

How many times a year?

0.5

Very rare exposure

(3) The possible results of accident or dangerous event (c) are as follows:

Fractional value

Consequences of the accident

100

Catastrophe, 10 Many people died.

40

Disaster, several people died.

15

Very serious, 1 person died.

seven

Severe and severe disability

three

Professional, disabled

1

Minor injuries, need an ambulance.

(4) Hazard classification (d) The following table:

Risk score

criticality

>320

Extremely dangerous, unable to continue working.

160-320

This is highly dangerous and needs immediate rectification.

70- 160

Major danger, need to be rectified.

20-70

It's dangerous and needs attention.