Unit A4 Flashcards
List 5 sources of external data
HSE OHSA ILO WHO The Internet
List the three types of safety inspections
- safety checklist inspection
- general knowledge inspections
- risk mapping
What is the disadvantage of a safety checklist inspection
They may not identify previously unidentified hazards
List the three types of checklist inspections
- list of things checklist
- systematic list of procedures to be followed
- events which are fixed in time
What is a general knowledge type inspection
Another way of conducting inspections is to use the information you have in your head and just walk around looking at what is going on
What is a risk mapping type inspection
This technique uses a map/drawing of the workplace (like a floor plan) or a list of steps in a process. People in the group then tell the leader the hazards they recognise and where they are located in the workplace or process
What Should you Include in your Inspections?
Equipment Chemicals Processes Workplace environment Employee training Emergency plans PPE
List the three types of main risks
- directly perceived risks
- virtual risks
- risks perceived through science
What are the two types of risk assessments
- quantitative
- qualitative
Explain a quantitative risk assessment
provide a numerical estimation of risk based on mathematical modelling
Risk management involves
Risk identification Risk evaluation Risk estimation Monitoring Audit and review
List the 8 hazards effect groups
Immediate physical danger Long term physical danger Immediate chemical danger Long term chemical danger Immediate biological danger Long term biological danger Immediate psychological danger Long term psychological danger
Define acceptability of risk
Is a risk which although not negligible is presumed not to require any more controls
Define a tolerable risk
Is a known risk deliberately run on a regular basis that isn’t negligible and cannot be ignored but which should be kept under review and reduced if and when possible
List the two types of risk retention
With knowledge
Without knowledge
Explain risk Renton with knowledge
If you have a correct assessment of both probability and severity of the loss then funds can be set aside for this purpose
Explains risk retention without knowledge
If you fail to consider a particular risk then we can be retaining without knowledge
Explain what is risk Prioritization
Target resources to deal with those hazards that pose the greatest threat first
Explain what is Probability
The the chance that a given event will take place
Define Frequency
Usually can be regarded as identical to probability or the time interval between expected loss making events
Define Severity
Extent of potential loss
What is Relativistic method of risk rating
Looking at things in relative terms only. Particularly useful where risks cannot be quantified with any degree of certainty. Risks can be rated by comparison of one industry to another
What is a Probabilistic method of risk rating
Is where the risk is calculated
What is a job safety analysis JSA
Job safety analysis (JSA) is the systematic examination of a job intended to identify hazards, assess the level of risk, and evaluate practical measures to control the risk
List the 5 steps a JSA involves
Select the job to be analyzed
Identify the potential hazards
Breaking the job down into a sequence of tasks
Determining preventive measures to control these hazards
Communicating the information to others
What should you Consider when selecting the job to be analysed
Accident, injury and illness statistics: jobs where accidents occur
Absenteeism
Signs and symptoms of harmful exposures
Modified jobs
Infrequently performed jobs
Jobs with frequent work interruptions due to technical difficulties
Jobs with excessive waste generation and production losses
Jobs where employees are required to work alone in isolated workplaces
Jobs with the potential for violence in the workplace
commonly-used techniques for identifying potential hazards in a JSA are
Kepner and Tregoe method based on change analysis
Gibson and Haddon approach based on unwanted energy flow and energy barrier
What are the steps in the Kepner and Tregoe method based on change analysis
For a specific task, identify the task or process parameters to be investigated for changes (normally one parameter).
Apply the guide words to this parameter in order to qualify or quantify the changes
Identify and assess the consequences of the changes in terms of risk
Task parameters are easy to find. Look at the task and find parameters to be controlled in order for the task to be performed normally
Such parameters can be:
A sensory signal: e.g. colour, shape of object
A process specification: e.g. pressure, temperature, concentration, flow rate
A dynamic component: e.g. motion, sequence, pace, speed change, friction
A geometric value and time: e.g. location, dimensions, rate
A force or mass: e.g. electrical power, chemical energy, torque, impulse, impact
A piece of equipment: e.g. protective devices, position of a part, part in motion
Explain the Gibson and Haddon approach based on unwanted energy flow and energy barrier
The procedure for the energy-barrier approach is to look at each task and:
Identify the energy sources producing a risk
Describe the way the energy can come in contact with employee(s) (i.e. the energy flow
Find adequate barriers to eliminate or reduce the chances of this contact (i.e. controlling the
energy flow
Hazard control strategies
The following are common hazard control strategies, in order of preference:
1) Eliminate the hazard
2) Substitute the hazard with less hazardous or non-hazardous options
3) Minimise the risk due to the hazard
4) Reduce the exposure
5) Isolate the hazard
6) Provide personal protective equipment and clothing
7) Implement administrative controls
8) Have an emergency plan in place
9) Adopt measures to reduce damage following an accident or emergency
List examples to Eliminate the hazard
- Choose a different process
- Modify an existing process by changing the energy type
- Modify or change equipment or tools
- Lock out energy sources
List 5 internal sources of information
SDS magazines / journals User manuals Direct observation Interviews and discussions I'll health data / injury data
