Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.
This describes the essential skills and knowledge and their level required for this unit.
Application of an operational knowledge of the materials, equipment and process sufficient to recognise out of specification products, process problems and materials faults. For example, de-gassing of the mixture may be required prior to being delivered to the mix head in some equipment, or after if there are still air bubbles present in the mixture. Therefore, the mixing process should be monitored at all times to identify when adjustments are needed, ensuring the finished product is to specifications.
Knowledge of organisation procedures and relevant regulatory requirements along with the ability to implement them within appropriate time constraints and work standards.
Application of the knowledge of managing risks using the hierarchy of controls applied to the mixing process. Application of approved hazard control and safety procedures and the use of PPE in relation to handling materials, equipment operation and cleanup.
Knowledge of and skills in the operation of mixing equipment and main components sufficient for consistent production of quality products including:
production workflow sequences and materials demand
the reasons for checking process control panels and reporting readings which are outside of normal range of process variability
accurately monitoring equipment operation and product quality
the potential effects of variations in raw materials and equipment operation in relation to quality of product
processing behaviour of polymers and the role of additives
waste management and knowing the importance of reusing non-conforming products wherever possible
explain the effect of unauthorised or emergency shutdown in relation to safety and production requirements
identify factors which may affect product quality or production output and appropriate remedies.
Competence includes the ability to:
plan own work, including predicting consequences and identifying improvements
identify when the operator is able to rectify faults, when assistance is required and who is the appropriate source for assistance
identify and describe own role and role of others involved directly in operating mixing equipment.
Language, literacy and numeracy requirements
This unit requires the ability to read and interpret typical product specifications, job sheets and material labels as provided to operators.
Writing is required to the level of completing workplace forms.
Basic numeracy is also required.
The Range Statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Add any 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.
Where reference is made to industry codes of practice, and/or Australian/international standards, the latest version must be used.
Context
This competency applies to the processes required to mix materials to specification using mixing equipment. Materials may be any resin, multi-part mix or blend requiring specified quantities of raw materials and additives to meet a specification or recipe. It also includes the operation of all relevant additional equipment where that equipment is integral to the mixing process.
Procedures
All operations are performed in accordance with procedures.
Procedures include all relevant workplace procedures, work instructions, temporary instructions and relevant industry and government codes and standards.
Tools and equipment
This competency includes use of equipment and tools such as:
measurement devices (such as measuring flasks, containers, weighing machines, scales or meters)
mixing or blending equipment (such as stirrers, paddle, propeller or other driven mixer)
relevant personal protective equipment.
Hazards
Typical hazards include:
hazardous materials and vapours
temperature
manual handling
stationary and moving machinery, parts and components.
Problems
'Respond to routine problems' means 'apply known solutions to a limited range of predictable problems'.
Typical process problems may include:
incorrect machine settings (such as temperatures)
incorrect measurements of materials
damaged equipment and equipment components
poor blending of raw materials.
Typical product problems may include:
poor surface finish
poor colour dispersion
bubbles in mixture.
Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.
Observation Checklist