RISK EVALUATION UNDER JOB SAFETY ANALYSIS

SYSTEM (JSA)

JSA is a technique to identify the existing or potential hazards of specific tasks in order to reduce

the risk or injury to workers. Under this part, the hazards identified from the procedure need to

be evaluated. The risks evaluated may be cause miss injury, minor injury, medium injury, highly

injury, and critical injury either or self-injury. The risks are evaluated based on the environment,

human or equipment factors. The table below are shown those risks been list out based on the

hazed identification.

NO PROCEDURE HAZARDS ID. RISK

1. Student entering to the

laboratory

- The floor are wet

- Long and messy hair

-Wearing sandals,

absence of socks with

open end shoes

-Long sleeve shirt

without button or hanging

-Short pants

-The risk of wet floor is

dangerous for the employees if

they fall down and caused

accident.

-The risk of long and messy

hair is to be stuck where the

place has the potential to

present hazards to employees.

-The risk of wearing sandals,

absence of socks with open end

shoes would be exposed to

greater risk, slipped, exposed to

sharp objects and more.

- The risk of not buttoning long

sleeve shirt or left is hanging

might controlled employees

movement and disturb his

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concentration.

-The risk of wearing short

pants might exposed to sharp

objects which is harmful to

employees.

2. Student comply with

regulations and laws in

the course of laboratory

work

- ……………… - ………….

3. Measure and record

specimen dimensions

-Broken apparatus

-Irregular shape

specimens

-Insufficient table space

-The risk of broken apparatus

can cause a cut or accident

while it is not handle properly.

-The risk of irregular shape

specimens might hurt

employees because of the sharp

edges.

-The risk of insufficient table

space can cause the apparatus

or specimen not placed

correctly and drop down,

causing accident.

4. Fit the specimen into

Universal Testing

Machine(UTM). Load

the specimen into the

jaws of Instron load

frame.

-Universal Testing

Machine spoiled

-Jaws of load frame is not

tough

-Misplaced the specimen

when testing

-The risk of using spoiled

machine can cause misuse of

the machine.

-The risk of using jaws of load

frame that is not tough can

cause specimens not handled

properly and broken not

appropriately, causing pieces to

fly from all angle, creating

dangerous working

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environment for employees.

-The risk of misplacing the

specimen when testing can

cause accident happen.

5. Record the maximum

load and extension for

the construction of stress-

strain curve of each

tested specimen

- ………… - …………..

6. Conduct the experiment

until fracture.

-Pieces of fracture

specimens flew out

-The risk of fracture specimens

flew out can cause miss

accident, minor accident and

major accident if no body

equipment is used.

7. Calculate Young's

modulus, yield strength,

ultimate tensile strength,

fracture strain, %

elongation and % area of

reduction of each

specimen and record on

the provided table.

- ………… - …………..

8. Analyse the fracture

surfaces of broken

specimens using

stereoscope, sketch and

describe the results.

-Handled sharp edges of

specimen

-The risk of handing sharp

edges of specimen with bare

hands will cause injury.

9. Collect all the apparatus

used.

-Careless behaviour lead

to accident while

-The risk of careless behaviour

such as losing concentration,

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collecting apparatus and

specimens pieces

playing or talking might cause

injury which can lead to

accident.

10. All established in the

original condition before

leaving the laboratory.

-Careless behaviour that

didn’t placed chairs and

apparatus in original

place

-Chaos situation caused employee

to step on the apparatus and fall

down, hit or bump on the

apparatus when next time walk in

the lab.

11. Ensure all electrical

appliances established in

an offing mood.

-Careless or human

mistake that forget to

switch off the power of

UTM and lighting.

-May cause the machine to

overload or overheat. Thus,

causing the fire.

12. Exit of the laboratory and

closing the doors before

leaving.

- Careless mistake -The risk is the shirt stuck on

the door and banging on the

door

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