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HAZARD IDENTIFICATION, RISK ASSESSMENT & RISK CONTROL (HIRARC)
Transcript of HAZARD IDENTIFICATION, RISK ASSESSMENT & RISK CONTROL (HIRARC)
A hazard is any source of potential damage, harm or adverse health effects on something or someone under certain conditions at work. "Occupational Health and Safety Assessment Series 18002 (OHSAS 18002) and ISO / IEC Guide 51:1999 defines a hazard as the cause or circumstances that have caused harm in the context of potential injuries and illnesses to people, property damage, damage to the workplace environment, or affiliates." Chemicals, radiation, electricity, Biohazard, unsafe systems of work are some examples of hazards.
Types of Hazard Symbols
RISK & DANGER
According to OHSAS 18002, is a combination of possible risk (probability) and consequences of a hazardous event occurs. Risk can be defined as combinations of factors the likelihood of unfortunate events, exposure and impact of the accident. The probability here means cans an accident occurred.
Better explain the relative dangers of exposure to a hazard. These words are words that describe more or show a risk situation. For example, a person is exposed to the hazards are in greater danger than someone who is not exposed to the hazard.
TYPES OF HAZARD
a chemical for which there is scientifically valid evidence that it is a combustible liquid, a compressed gas, explosive, flammable, an organic peroxide, an oxidizer, pyrophoric, unstable (reactive) or water-reactive.
Examples of Physical Hazard
Biological hazards, also known as biohazards, refer to biological substances that pose a threat to the health of living organisms, primarily that of humans. This can include medical waste or samples of a microorganism, virus or toxin (from a biological source) that can affect human health. It can also include substances harmful to animals.
The types of things you may be exposed to include:
• blood or other body fluids
• bacteria and viruses
• insect bites
• animal and bird droppings
are substances that can cause harm or damage to the body, property or the environment. Chemical hazards can be both natural or human made origin.
Categories of Chemicals
Refers to chemicals which burn
Refers to chemicals which will corrode tissue or metals
Refers to chemicals which will poison a worker
Refers to chemicals which will provide oxygen to a fire, or react readily
Refers to gases which under high pressure
are created during work related stress or a stressful environment.
Work-related see stress, occupational stress
Excessive working time and overwork
Violence from outside the organization
Bullying, which may include emotional and verbal abuse
Exposure to unhealthy elements during meetings with business associates, e.g. tobacco, uncontrolled alcohol
repeatitive movements, improper set up of workstation.
• poor lighting
• improperly adjusted workstations and chairs
• frequent lifting
• poor posture
• awkward movements, especially if they are repetitive
• repeating the same movements over and over
• having to use too much force, especially if you have to
do it frequently
Symbol of BioHazards
Examples of Chemicals Hazard
Example of Psychological Hazard
Example of Ergonomic Hazard
DIPLOMA IN FOODSERVICE
[ HALAL PRACTICE ]
OCCUPATIONAL SAFETY & HEALTH
MARLIA BINTI AHMAD KAMAL [ 29DHF14S0003 ]
MOHD ROZAIMI EZLEEN BIN REHEMI [ 29DHF14S0007 ]
NUR NABIHAH BINTI ARIFIN [ 29DHF14S0009 ]
CASE STUDY 2 : HIRARC
“ The process of identifying the risks to system security and determining the probability of occurrence, the resulting impact and additional safeguards that would mitigate this impact. ”
How To Assess Risk
Contextual analysis and result oriented approach
Using bin values (numerical range) with unique meaning and context
Likelihood and severity derived with range of numerical values with degree of unique context
Likelihood of Occurrence
Severity of Hazard
QUALITATIVE RISK TABLE
Objective oriented assessment
Using non-numerical values to define risk factors
Likelihood and severity with definite value based on individual expertise
First Aid / Near Misses
Subjective oriented approach
Using numerical values to define risk factors
Likelihood and impact with definite number based on history of events
In cases where hazards are numerous and complex. Example; chemical process plant
Should have Job Safety Analysis (JSA) - describe job in less than 10 steps & list things that can go wrong. Example; changing a car wheel
1. First Aid
2. Less than 4 days MC
3. More than 4 days MC
4. Fatality & Permanent Disability
SEMI-QUANTITATIVE RISK TABLE
Hierarchy of control is a system used in industry to minimize or eliminate exposure to hazards. It is a widely accepted system promoted by numerous safety organizations. This concept is taught to managers in industry, to be promoted as standard practice in the workplace.
Hierarchy of Hazard Control
HIERARCHY OF CONTROL
ENGINEERING CONTROL (EC)
ADMINISTRATIVE CONTROL (AC)
PERSONAL PROTECTIVE EQUIPMENT (PPE)
Options which get rid of the hazard altogether. The best way to eliminate the risk is to completely remove the hazard
Example; repair damaged equipment promptly, move a noisy machine from a quiet area
Replacing a hazardous substance or work practice with a less hazardous one
Example; a telephone hand set can be replaced with a head set where there is constant use of the telephone
Isolate the hazard by controlling or guarding it
Place hazardous electrical plant in enclosures with restricted access
Place out-of-service tags on plant
The provision of mechanical aids, barriers, machine guarding, ventilation or insulation to isolate a hazard from employees
Example; electrical cut out switches, using trolleys or mechanical lifting aids
Establishing policies, procedures and work practices designed to reduce a worker’s exposure to a risk. It can also include the provision of specific training and supervision
Example; increasing job variety and introducing job rotation
Covering and protecting a worker’s body from hazards. It can be used as a short-term control measure until a higher order control has been provided, or to supplement it. The employer would also have to provide training for workers required to use it, and the employee would have a responsibility to use it properly
Examples; use ear plugs in noisy areas & use eye protection when working with chemicals
FIN. Thanks for listening :)