Assessor Resource
DEFWHS012
Test confined space environment
Assessment tool
Version 1.0
Issue Date: March 2024
This unit describes the skills required to test the environment of confined spaces to ensure safe entry and egress. This includes the preparation for and conduct of the test procedures and all post test procedures.
In the context of this unit, a confined space is any compartment or area that has the capability of accumulating a toxic, flammable or explosive atmosphere, or of being flooded, in addition to one of the following characteristics:
limited opening for access
no escape route or very restricted means of escape
limited natural ventilation
atmosphere containing more than 23.5% or less than 19.5% oxygen
This unit was developed for Defence personnel involved in the testing of confined space environments as a workplace responsibility, but is applicable to all individuals who work in this field.
The skills and knowledge described in this unit must be applied within the legislative, regulatory and policy environment in which they are carried out. Organisational policies and procedures must be consulted and adhered to.
Those undertaking this unit must demonstrate the ability to work independently or as part of a team under indirect supervision. They must be able to use discretion and judgement and take responsibility for the quality of their outputs.They would perform routine tasks in a range of familiar contexts.
No licensing, legislative or certification requirements apply to unit at the time of publication.
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