List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.
Elements describe the essential outcomes. | Performance criteria describe the performance needed to demonstrate achievement of the element. |
1 | Predict the impact of processing conditions on polymer properties | 1.1 | Predict property changes due to molecular weight and temperature |
| 1.2 | Identify the glass transition temperature and melting point relative to ambient temperature |
| 1.3 | Describe the morphological changes occurring to polymers as the temperature is raised to typical moulding conditions |
| 1.4 | Describe the effect of cooling rate on polymer morphology |
| 1.5 | Predict potential product dimension/shape changes due to internal stresses resulting from molecular orientation |
| 1.6 | Determine the affect of post-mould annealing on the degree of crystallisation and crystal |
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2 | Predict physical properties of polymers from their morphology | 2.1 | Predict the effects temperature, crystal size, degree of crystallisation, molecular orientation on physical properties |
| 2.2 | Predict shrinkage from morphology |
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3 | Determine likely physical failures of polymers | 3.1 | Determine impact of physical use conditions on physical failure |
| 3.2 | Determine impact of polymer characteristics on physical failure |
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4 | Organise and interpret polymer tests | 4.1 | Describe melt flow properties from flow data |
| 4.2 | Choose appropriate test type to measure desired criteria |
| 4.3 | Specify relevant standard test method |
| 4.4 | Interpret test result, making allowance for possible variations in test |
relevant to and satisfy the requirements of the elements and performance criteria and demonstrate the ability to:
read and interpret technical reports and specifications, phase diagrams and standard test methods
predict polymer properties in relation to:
polymer morphology
polymer phase change
processing conditions
predict the impact of use conditions and polymer characteristics on physical failure of polymers
organise tests
record and interpret test results.
Must provide evidence that demonstrates knowledge relevant to their job sufficient to fulfil their job role, including knowledge of:
function of equipment and stages of manufacturing process in at least one (1) method/field of polymer manufacturing
polymer morphology using phase diagrams
properties of polymers in relation to their morphology
physical failure in polymers
polymer materials test methods and property data
changes in properties and variations in test data
changes in physical properties due to compounding, processing or environmental conditions
organisation procedures relevant to the work environment/job role
hierarchy of control
hazards that may arise in the job/work environment and:
their possible causes
potential consequences
appropriate risk controls.
The unit should be assessed holistically and the judgement of competence shall be based on a holistic assessment of the evidence.
The collection of performance evidence is best done from a report and/or folio of evidence drawn from:
a single project which provides sufficient evidence of the requirements of all the elements and performance criteria
multiple smaller projects which together provide sufficient evidence of the requirements of all the elements and performance criteria.
A third-party report, or similar, may be needed to testify to the work done by the individual, particularly when the project has been done as part of a project team.
Assessment should use a real project in an operational workplace. Where this is not possible or where personal safety or environmental damage are limiting factors assessment must occur using a sufficiently rigorous simulated environment that reflects realistic operational workplace conditions. This must cover all aspects of workplace performance, including environment, task skills, task management skills, contingency management skills and job role environment skills.
Assessment in a simulated environment should use evidence collected from demonstration of skills and one or more of:
walk-throughs
pilot plant operation
industry-based case studies/scenarios
‘what ifs’.
Knowledge evidence may be collected concurrently with performance evidence or through an independent process, such as workbooks, written assessments or interviews.
Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.
Conditions for assessment must include access to all tools, equipment, materials and documentation required, including relevant workplace procedures, product and manufacturing specifications associated with this unit.
The regulatory framework will be reflected in workplace policies and procedures and is not required to be independently assessed.
Foundation skills are integral to competent performance of the unit and should not be assessed separately.
Assessors must satisfy the assessor competency requirements that are in place at the time of the assessment as set by the VET regulator.
In addition the assessor or anyone acting in subject matter expert role in assessment shall demonstrate both technical competency and currency. If the assessor cannot demonstrate technical competency and currency they shall assess with a subject matter expert who does meet these requirements.
Technical competence can be demonstrated through one or more of:
relevant VET or other qualification/Statement of Attainment
appropriate workplace experience undertaking the type of work being assessed under routine and non-routine conditions
appropriate workplace experience supervising/evaluating the type of work being assessed under routine and non-routine conditions
Currency can be demonstrated through one or more of:
being currently employed undertaking the type of work being assessed
being employed by the organisation undertaking the type of work being assessed and having maintained currency in accordance with that organisation’s policies and procedures
having consulted/had contact with an organisation undertaking the type of work being assessed within the last twelve months, the consultation/contact being related to assessment
conducting on the job training/assessments of the type of work being assessed
being an active member of a relevant professional body and participating in activities relevant to the assessment of this type of work.