Elements and Performance Criteria

RANGE STATEMENT
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 operators working either independently or as part of a work team.
Procedures:
All operations are performed in accordance with procedures.
Procedures means 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
extruder
bubble guides and rollers
film rollers, slitting, trimming and winding gear
coolers, heaters and ancillary equipment
hand tools, knives, adjustment tools
relevant personal protective equipment
treatment unit.
Hazards:
Typical hazards include
high air velocities
high voltage corona treatment systems
sharp knives
high towers manual handling
fumes, humidity, air temperatures, radiant heat, hot dies
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 and product problems may include
extruder control
contamination
alignment and control of trimming and winding gear
raw material contamination, wrong grade, variations of polymer properties.
Variables:
Key variables to be monitored include
equipment pressures and temperatures
material specifications
ambient temperature

The Evidence Guide provides advice on assessment and must be read in conjunction with the Performance Criteria, Required Skills and Knowledge, the Range Statement and the Assessment Guidelines for this Training Package.
Overview of assessment
Assessment will occur on an industrial blown film machine(s) and will be undertaken in a work like environment.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
It is essential that competence is demonstrated in the ability to
identify critical materials properties and blown film process characteristics in relation to the process requirements and the end product
apply approved procedures
take appropriate action to resolve faults or report faults to appropriate personnel
explain and implement emergency shutdown procedures.
Consistent performance should be demonstrated. In particular look to see that
production standards are met consistently
upstream and downstream communication is timely and effective operating procedures and work instructions are read and interpreted correctly
problems are identified and appropriate action is taken (ie, the problem is fixed or reported)
all safety procedures are followed.
Assessment method and context
Assessors must be satisfied that the person can consistently perform the unit as a whole, as defined by the Elements, Performance Criteria and skills and knowledge. A holistic approach should be taken to the assessment.
Competence in this unit may be assessed
on an operating plant allowing for operation under all normal and a range of abnormal conditions
in a situation allowing the generation of evidence of the ability to respond to problems
by use of a suitable simulation and/or a range of case studies/scenarios
by a combination of these techniques.
In all cases it is expected that practical assessment will be combined with targeted questioning to assess the underpinning knowledge and theoretical assessment will be combined with appropriate practical/simulation or similar assessment. Assessors need to be aware of any cultural issues that may affect responses to questions.
Assessment processes and techniques must be culturally appropriate and appropriate to the oracy, language and literacy capacity of the assessee and the work being performed.
Specific resources for assessment
This section should be read in conjunction with the range of variables for this unit of competency. Resources required include suitable access to an operating plant or equipment that allows for appropriate and realistic simulation. A bank of case studies/scenarios and questions will also be required to the extent that they form part of the assessment method. Questioning may take place either in the workplace, or in an adjacent, quiet facility such as an office or lunchroom. No other special resources are required.
Access must be provided to appropriate learning and/or assessment support when required. Where applicable, physical resources should include equipment modified for people with disabilities