Core TSIs : Health & Safety : Concepts : Health & Safety TSIs : Hazard catalog : Risk matrix and asbestos assessment
Risk matrix and asbestos assessment
This section explains how to set up a risk matrix or an asbestos assessment.
Configuring a risk matrix
The risk matrix is used to assess the potential damage of a hazard, based on the likelihood and severity factors. The likelihood and severity scores are multiplied to obtain a score value. This score is looked up in the risk ranges to determine the risk level. An example of a hazard risk matrix is given below:
Image dispalying the hazard risk matrix for Severity versus LikelihoodImage dispalying the hazard risk matrix for Severity versus Likelihood
Example, if Likelihood = Possible (3) and Severity = Major (4), the risk level is determined by severity * likelihood, which is 3*4 = 12. The score 12 falls in 'High' risk range.
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The risk ranges are defined per hazard type. For more information, see Adding a risk range.
Adding a risk matrix
Procedure
1. Go to Hazard risk matrix > Risk matrix.
2. On the action panel, click Add.
3. In the data panel, enter a Code and Description to uniquely identify the risk matrix.
4. Click Save.
You have created a new risk matrix.
Adding a severity and likelihood
Use the following procedure to define a severity and likelihood for the selected risk matrix.
Procedure
1. Go to Hazard risk matrix > Details > Severity / Likelihood.
2. On the action panel, click Add.
3. In the data panel, enter a Code, Description and a relevant Score to define the severity / likelihood factors.
4. Click Save.
You have added a new severity / likelihood.
Configuring risk levels
You can define the risk levels that are relevant to your organization in the pick lists. Examples of risk levels are: low, medium, high.
Procedure
1. Go to Pick lists.
2. Select the Hazard risk level pick list from the list.
3. Go to Supporting data > Picklists.
4. Select the RISKLEVEL picklist.
5. Go to Pick list items.
6. On the action panel, click Add.
7. In the data panel, enter a Code and Name to uniquely identify the risk level.
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In Planon AppSuite, the lists of risk levels is sorted by code, so it is recommended to use alphanumerical codes that reflect the order of importance. Your configuration determines the position of a risk level in the list on the app.
8. Click Save.
You have added a new risk level.
Configuring an asbestos assessment
Materials containing asbestos were widely used within the construction industry for new and refurbished buildings until 1999. In that year they were banned, due to health and safety regulations. Asbestos does not impose a risk when left undisturbed. However, if it is disturbed and inhaled it can cause serious lung diseases.
For asbestos assessments, the UK government provides the HSG264 form, with a set of factors, based on materials and priorities. The condition of the material containing asbestos is assessed via a score on these factors. The asbestos factors can be registered in the Hazard registry TSI on the Hazard logs selection step.
Asbestos assessments are used in cases where the assessment method of the Hazard type is set to Asbestos (HSG264). The risk score is read-only and calculated based on the values in 13 fields.
The following calculation factors are available:
Material assessment
Four factors determine how dangerous the material is. The Material assessment score is the sum of the scores of these four factors with a maximum score of 12.
Product type - the asbestos material type used. Examples: Asbestos reinforced composites, Asbestos insulating board, Thermal insulation.
Extent of damage/deterioration - describes the degree of damage or aging of the asbestos containing material. Examples: Good condition, Low damage, Medium damage.
Surface type/treatment - describes how the material is applied. Examples: Composite materials containing asbestos, Unsealed asbestos insulating board.
Asbestos type - the chemical structure of the asbestos. Examples: White (Chrysotile), Brown (Amphibole asbestos excluding crocidolite), Blue (Crocidolite).
Priority assessment
Nine factors in four categories determine the risks to daily operations. The score of Priority assessment is the sum of the four average scores, with a maximum score of 12. The four categories are:
Normal occupant activity score,
Likelihood of disturbance score,
Human exposure potential,
Maintenance activity score.
The scores are calculated as follows:
Normal occupant activity score - total score of the Activity factor, with a maximum score of 3:
Activity - describes the normal occupant activity (how often a space is used). Examples: Rare, Low, Periodic.
Likelihood of disturbance score - the average score of the following factors with a maximum score of 3:
Location - the location where the asbestos is identified. Examples: Outdoor, Warehouse, confined area.
Accessibility - how easy is it to disturb the asbestos. Examples: Routinely disturbed, Easily disturbed, Usually inaccessible.
Extent of range - what is the amount or surface. Examples: Less than 10 sq metres, 10 to 50 sq metres area, More than 50 sq metres.
Human exposure potential - the average score of the following factors with a maximum score of 3:
Number of occupants - the number of people usually accessing the location. Examples: 1 to 3, More than 10.
Frequency of use of area - how often is the location used. Examples: Daily, Weekly, Infrequent.
Average time area is in use - the average time of occupancy of the location. Examples: Less than 1 hour, 3 to less than 6 hours, More than 6 hours.
Maintenance activity score - the average score of the following factors with a maximum score of 3:
Maintenance type - what is the disturbance when maintenances activities are performed. Examples: Minor disturbance, Medium disturbance, High level disturbance.
Maintenance frequency - how often will a maintenance activity performed. Examples: Unlikely, Less than once a year, Less than once a month.
The Total score of the asbestos assessment is the sum of the following scores with a maximum score of 24:
Material assessment score
Priority assessment score
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The following applies to all average scores: if an average score contains decimals, these will be rounded, according to the rounding method that is selected in the Hazard logs business object settings in Field definer . The default rounding method is Round up, but you can also select Round down or Round to nearest.
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For information on various rounding methods in calculations of the Priority score, see Field definer > Setting for the Hazard Logs - Asbestos assessments business object.
Adding asbestos scores
Use the following procedure to add elements of the HSG264 calculation method for asbestos scores.
Procedure
1. Go to Asbestos scores.
Select a selection step representing an asbestos factor for which you want to add scores.
2. On the action panel, click Add.
3. In the data panel, enter a Code and Description to uniquely identify the score and provide a Score value.
4. Click Save.
You have now added a score to an asbestos factor.
Configuring hazard presence
You can configure a list that describes the presence of hazardous materials.
Presumed, Strongly presumed, and Known are examples of defining the presence of a hazard.
Procedure
1. Go to Pick lists.
2. Select the Hazard presence pick list.
3. Go to Pick list items.
4. On the action panel, click Add.
5. In the data panel, enter a Code and Name for the presence definition.
6. Click Save.
You have added a new presence definition.