
Control measure
Isolate or limit gases, liquids and other flowing materials
Control measure knowledge
When operating in a confined space, the ingress of gas, liquids or flowing materials will affect the environment, which may become hazardous to those inside the confined space.
Personnel must be aware of the environment and any associated processes that may affect the confined space and take all appropriate actions to prevent the ingress of substances.
The removal of materials, such as sludge, may reduce the quantity of toxic or asphyxiate gases being released into the confined space. However, this activity should be subject to a risk assessment as it may release more gases.
Strategic actions
Capture information about the storage or use of gases, liquids or flowing materials in Site-Specific Risk Information (SSRI)
Tactical actions
Refer to information provided by SSRI site working plan or the responsible person, about the storage or use of gases, liquids or flowing materials in confined spaces
Investigate the possibility of ingress from gas, liquids or flowing materials into the confined space, including surface water
Isolate the confined space or sources to prevent the ingress of gas, liquids or flowing materials
Identify the presence of materials, such as sludge, that may release gases, especially if disturbed
Consider the controlled removal of materials, to reduce the quantity of gases being released
TRAINING SPECIFICATION
Knowledge and understanding
Control measure element | Learning outcome |
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Isolate or limit gases, liquids and other flowing materials |
Understand:
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Practical application
Control measure element | Learning outcome |
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Isolate or limit gases, liquids and other flowing materials |
Demonstrate the ability to:
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- Control measureSafe system of work: Atmospheric conditions
- Control measureProvide ventilation