Unit of competency details
PMBTECH503 - Determine rheology and output of plastics materials from processing equipment (Release 1)
Summary
Usage recommendation:
Deleted
The
Deleted
usage recommendation was implemented on 13 June 2017 to describe training components that have no replacement. Enrolments in training components and statements of attainment or qualifications issued before 13 June 2017 are valid. For any components marked as deleted after 13 June 2017, the applicable transition/teach-out periods apply. For specific questions regarding the enrolment, delivery or issuance of a statement of attainment/qualification, please contact your
training regulator.
Releases:
| 1 1 (this release) |
22/Jun/2016 |
Companion volumes:
Unit of competency
Assessment requirements
Training packages that include this unit
Qualifications that include this unit
Classifications
Classification history
| ASCED Module/Unit of Competency Field of Education Identifier | 030305 | Materials Engineering | 14/Oct/2016 | |
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Unit of competency
Modification History
Release 1. Supersedes and is equivalent to PMBTECH503B Determine rheology and output of plastics materials from processing equipment
Application
This unit of competency covers the skills and knowledge required to determine rheology and output of plastics materials from processing equipment.
This unit of competency applies to experienced technicians or those in similar roles who are required to apply in-depth knowledge of materials, process, equipment and problem solving in order to perform calculations using the rheological properties of polymers and apply that to their performance in process equipment.
No licensing, legislative or certification requirements apply to this unit at the time of publication.
Pre-requisite Unit
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PMBTECH401
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Predict polymer properties and characteristics
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Competency Field
Technical
Unit Sector
Not applicable
Elements and Performance Criteria
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Elements describe the essential outcomes.
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Performance criteria describe the performance needed to demonstrate achievement of the element.
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1
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Determine flow characteristics of polymer compound
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1.1
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Calculate and describe shear and shear rates
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1.2
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Distinguish between Newtonian and non-Newtonian flow
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1.3
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Identify the characteristics of polymer structures which influence flow
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1.4
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Identify the relationships between density, temperature and viscosity for polymers
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1.5
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Identify the flow characteristics of a polymer compound based on its structure and temperature
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2
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Calculate flow rate of polymer compound
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2.1
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Use equipment dimensions and data to determine shear rate of polymers through that equipment
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2.2
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Calculate output from equipment using viscosity curves and shear rate diagrams
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2.3
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Calculate mean velocity at critical points in a process
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2.4
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Determine the characteristic curves for the screws and dies in processing equipment, and the resultant operating point for the system
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Foundation Skills
This section describes those required skills (language, literacy and numeracy) that are essential to performance.
Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.
Range of Conditions
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This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.
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Regulatory framework
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The latest version of all legislation, regulations, industry codes of practice and Australian/international standards, or the version specified by the local regulatory authority, must be used.
Applicable legislation, regulations, standards and codes of practice include: - health, safety and environmental (HSE) legislation, regulations and codes of practice relevant to the workplace, materials and processes being used and products being made
- Australian/international standards relevant to the materials being used and products being made
- any relevant licence and certification requirements.
All operations to which this unit applies are subject to stringent HSE requirements, which may be imposed through state/territory or federal legislation, and these must not be compromised at any time. Where there is an apparent conflict between performance criteria and such requirements the legislative requirements take precedence.
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Procedures
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All operations must be performed in accordance with relevant procedures.
Procedures are written, verbal, visual, computer-based or in some other form, and include one or any combination of: - test procedures
- technical specifications
- technical drawings
- emergency procedures
- work instructions
- standard operating procedures (SOPs)
- safe work method statements (SWMS)
- formulas/recipes
- batch sheets
- temporary instructions
- any similar instructions provided for the smooth running of the plant.
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Hazards
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Hazards must be identified and controlled. Identifying hazards requires consideration of: - hazardous products and materials
- smoke, dust or other atmospheric hazards
- other hazards that might arise.
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Unit Mapping Information
Release 1. Supersedes and is equivalent to PMBTECH503B Determine rheology and output of plastics materials from processing equipment
Links
Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=932aacef-7947-4c80-acc6-593719fe4090
Assessment requirements
Modification History
Release 1. Supersedes and is equivalent to PMBTECH503B Determine rheology and output of plastics materials from processing equipment
Performance Evidence
Evidence required to demonstrate competence in this unit must be relevant to and satisfy the requirements of the elements and performance criteria and demonstrate the ability to:
- read and interpret test results, technical information, equipment specifications and instruments/control panels
- determine flow characteristics of polymer compound based on its structure and temperature
- calculate the flow of polymers through the processing equipment and its components
- perform complex algebraic equations, non-linear functions and simultaneous equations
- interpret non-linear graphs.
Knowledge Evidence
Must provide evidence that demonstrates knowledge relevant to their job sufficient to fulfil their job role, including knowledge of:
- principles of rheology, how rheological properties vary with temperature and how they impact on process efficiency and equipment design
- Newtonian and non-Newtonian flow
- shear force and shear rate calculations
- output calculations
- density/temperature/viscosity relationships and calculations
- 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.
Assessment Conditions
- The unit should be assessed holistically and the judgement of competence shall be based on a holistic assessment of the evidence.
- Where the assessee does not currently possess evidence of competency in PMBTECH401 Predict polymer properties and characteristics, it may be co-assessed with this unit.
- 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.
Links
Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=932aacef-7947-4c80-acc6-593719fe4090
