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, organisation and site requirements and procedures
manufacturer's guidelines and specifications
Australian standards
code of practice
Employment and workplace relations legislation
Equal Employment Opportunity and Disability Discrimination legislation
Accretion may be defined as:
'A solid build up of any material or substance being processed which will require blasting to dislodge it'.
Accretion may include:
lead cooling in a furnace
build up of material inside a mill
Potential hazards and risks may include:
heat
manual handling
tripping hazards
confined spaces
open voids/working at height
moving equipment
fire/flames
broken detonation leads
premature explosion
atmospheric contaminants
debris
faulty equipment
high air and water pressures
high voltage electricity
gases and fumes
unauthorised personnel
radio frequencies and transmitters
EMF hazards (e.g. static electricity, lightning)
hot material
Basic calculations may include:
depth of blast pipe
quantity of explosives
pipe placement
timing
Equipment may include:
water/air hoses
jack hammer
thermal lance
shotgun
drill steels
piping
PPE
skewers
hand tools
vice
winch
exploder
bomb points
blast pipe
Support requirements may include:
environmental monitoring
trucks, excavators, bobcats or other machinery
assistants
metallurgists
furnace/mill operators
observers
cranes/winches
Personnel may include:
other operators
metallurgists
assistants
trainers/assessors
furnace operators
mobile equipment operators
supervisors
Safety provisions may include:
warning whistles
signs and barricades
sentries
flashing lights
broadcasts
exclusion zones
blast shields
Establishing blast pipe may include:
jack hammering
use of thermal lance
use of a shotgun
Prepare and test may include:
cooling
inserting dummy explosive prior to blasting
Explosives may include:
high explosives
permitted explosives
detonators
Warning devices may include:
firing whistles
flashing lights
broadcasts

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 accretion firing
Implementation of requirements, procedures and techniques for the safe, effective and efficient conducting of accretion firing
working with others to undertake and complete accretion firing that meets all of the required outcomes
consistent timely completion of accretion firing 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.
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.
Assessment of this competency requires typical resources normally used in the work environment. Selection and use of resources for particular worksites may differ due to site circumstances.
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
consistently achieving the required outcomes
first hand testimonial evidence of the candidate's:
working with others to undertake and complete accretion firing
Guidance information for assessment
Consult the SkillsDMC User Guide for further information on assessment including access and equity issues.