Elements and Performance Criteria

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, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Relevant compliance documentation may include:
legislative, organisational and site requirements and procedures
manufacturer's guidelines and specifications
Australian standards
Employment and workplace relations legislation
Equal Employment Opportunity and Disability Discrimination legislation
Legislation may include Acts and regulations dealing with:
mining safety and health
mine inspection
OHS
explosives
Pre-start checks may include:
availability of equipment (e.g. conveyor)
detection of conditions that are unusual
personnel availability
job requirements
levels
walk through plant
Environmental issues may include:
drainage
dust (dump)
emissions
flora and fauna
hazardous chemicals
noise
recycling
run-off
spills
waste management and disposal
water quality
Start-up procedures may include the inspection of:
agitators
cameras and monitors
interlocks
distribution control system
launders
hydraulic system
pumping system
screen inspections
scuttling pumps
pipes and flanges
drive belts
valves
visual and audio warning devices and lights
suppression systems
Plant may include:
agitators
blowers
valves
pumps
hoppers
vessels (aerator)
hoses
air/slurry/water lines
silences
tank (process liquor, reagent holder)
conveyors
weight and vibrating feeder
Indicator readings may measure:
flow
current (e.g. agitators)
density
levels
restrictions
air flows
pressure
speed (e.g. pumps)
unusual noises
vibrations
power
temperature
Aeration methods may include:
batch
continuous
Monitoring the aeration process may include the checking of:
blockages and spillages
feed rates
mineral content
moisture levels
on stream analysis (OSA)
overloads
pressures (e.g. in air lines)
power draw
wear and tear
emission (e.g. cyanide)
levels
hydrogen bubbles
end point testing (batch)
temperature
Operating parameters may include:
reagent additions
reduce produce/feed/tonnes
hectalilte of processes liquor
Equipment and plant cleaning methods may include:
hosing with water
high pressure cleaning
Shutdown procedures may include:
cleaning of sparge lines
charge and empty discharge lines
Post-shutdown checks are like pre-start checks.

Tests may include:
magnetic tests
on-line conductivity
temperature measurements
Materials may include:
slurry (reagent, dry product, liquor)
Contaminants are anything other than the ore. Common contaminants may include:
oil
fuel
gases
organic materials
moisture

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit
The evidence required to demonstrate competency in this unit must be relevant to worksite operations and satisfy all of the requirements of the performance criteria, required skills and knowledge and the range statement of this unit and include evidence of the following:
knowledge of the requirements, procedures and instructions for conducting aeration processes
implementation of requirements, procedures and techniques for the safe, effective and efficient completion of aeration processes
working with others to undertake and complete the aeration process in a way that meets all of the required outcomes
consistent timely completion of aeration processes that safely, effectively and efficiently meets the required outcomes
Context of and specific resources for assessment
This unit must be assessed in the context of the work environment. Where personal safety or environmental damage are limiting factors, assessment may occur in a simulated environment provided it is realistic and sufficiently rigorous to cover all aspects of workplace performance, including task skills, task management skills, contingency management skills and job role environment skills.
Assessment of this competency requires typical resources normally used in a resources and infrastructure sector environment. Selection and use of resources for particular worksites may differ due to the site circumstances.
The assessment environment should not disadvantage the participant. For example, language, literacy and numeracy demands of assessment should not be greater than those required on the job.
Customisation of assessment and delivery environment to sensitively accommodate cultural diversity.
Aboriginal people and other people from a non English speaking background may have second language issues.
Where applicable, physical resources should include equipment modified for people with disabilities. Access must be provided to appropriate learning and/or assessment support when required.
Method of assessment
This unit may be assessed in a holistic way with other units of competency. The assessment strategy for this unit must verify required knowledge and skill and practical application using more than one of the following assessment methods:
written and/or oral assessment of the candidate's required knowledge
observed, documented and/or first hand testimonial evidence of the candidate's:
implementation of appropriate requirement, procedures and techniques for the safe, effective and efficient achievement of required outcomes
consistent achievement of required outcomes
first hand testimonial evidence of the candidate's:
working with others to undertake and complete the aeration process
Guidance information for assessment
Consult the SkillsDMC User Guide for further information on assessment including access and equity issues.