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The Range Statement relates to the Unit of Competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording in the Performance Criteria is detailed below. |
Confined spaces may include | Any compartment or area with limited opening for access and no escape route, and with limited natural ventilation or an atmosphere containing more than 23.5% or less than 19.5% oxygen, and the capability of accumulating a toxic, flammable or explosive atmosphere, or of being floodedExamples of confined spaces may include:fuel tanks (diesoline, gasoline, kerosene, AVCAT) or any other liquid or gaseous fuelwater tanks (feed, fresh, ballast), void spaces, cofferdams, double bottoms/wing compartments, sewagetreatment tanks (combine holding tank system)oil tanks (sludge oil, lubricating, hydraulic), cable lockers (anchor cable stowage)open-topped spaces such as pits or degreasers, pipes, sewers, shafts, ducts and similar structuresboiler drums, steam turbine casing, main condensers, gas turbine rotor casing, piston engine enclosedcrankcase, main circulating water inlet and discharge pipes, pressure vessels |
Potential contaminants may include | Dusts/fumes/gases/vapours/particlesHazardous substancesLiquidsNoiseRadiation (Ionising or non-ionising) |
Organisational policy and procedures may include | Australian or international standardsConfined space entry permit/permits to workEquipment manufacturers' specificationsExposure standardsJob Safety Analysis (JSA)Legislation, including state/territory/commonwealth OH&S acts, regulations, codes of practice and guidance material relating to hazards present in the workplace and industry, and associated with entry to confined space including legislation specific to confined space workMaterial Safety Data Sheets (MSDS)Organisational policies and proceduresPrevious testing reportsRisk assessmentsStanding Operating Procedures (SOPs)Testing and analysis protocolsTask analysis |
Equipment and resources may include | Testing equipment as required by SOPsTesting equipment pertinent to the perceived contaminant/threat |
Preparation of equipment and resources may include | Testing equipment for safe operation (confidence testing) prescribed by manufacturerTesting equipment for serviceability |
Occupational health and safety requirements may include | General duty of care under OH&S legislation and common lawProvisions relating to health and safety representatives and/or OH&S committeesProvisions relating to OH&S issue resolution state/territory/commonwealth OH&S acts, regulations, codes of practice and guidance material relating to hazards present in workplace and industry |
Testing sample may include | Quantity required to obtain valid resultSending sample with appropriate paperwork to testing laboratory for specialised tests |
Recording test results may include | Manual or automated recording systems |
Analysis of test results may include | Comparison against known standardsDetermination of safe levels of contaminants/threats |
Monitoring of the confined space environment may include | Maintaining testing regime while in confined space, be it continuous or periodic, in accordance with entry plan and work permitMonitoring if determined under risk assessmentMonitoring in response to work being undertaken in the space |
Documentation and reports may include | Testing equipment usage reports/logsWork permit completion after testing Written reports required by organisation |
Cleaning and refurbishing testing equipment may include | Decontamination proceduresDisposal of personal protective equipment (PPE)Disposal of test samplesInspection, servicing and cleaning equipment ready for re-use or storage |
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