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Elements and Performance Criteria

  1. Identify the requirements for hand mixing of materials.
  2. Pre-plan hand mixing operations.
  3. Check hand mixing set-up.
  4. Conduct hand mixing operations.
  5. Respond to product quality improvement requests.

Required Skills

This describes the essential skills and knowledge and their level required for this unit

Application of knowledge of the materials equipment and process sufficient to recognise out of specification products process problems and materials faults

Knowledge of organisation procedures and relevant regulatory requirements along with the ability to implement them within appropriate time constraints and work standards

Competence includes the ability to

apply andor explain impact of incorrect or faulty materials production workflow sequences and materials demand correct selection and use of equipment materials processes and procedures hazards of the materials and process and appropriate hazard control procedures

distinguish between causes of faults such as wrong raw materialsadditivescatalyst incorrect quantity of materialsadditivescatalyst contaminated materialsadditives catalyst inadequate mixing incorrect setting timestemperaturecomposition

plan tasks including identifyingtimes and locations in the blending process where checks for product quality are required production outputs are most appropriately made ongoing materials input waste management and work area housekeeping requirements are considered and any required supplementary equipment for product quality testing is acquired

original manufacturer instructions and guidelines for the use of the specified materials MSDS

relevant procedures relating to safe working practices prescribed for the materials

local OHS legislation andor regulations

sitespecific instructions based on production requirements

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 eg to determine that mixtures might comprise parts of A parts of B and parts of C for a total mix comprising parts

Evidence Required

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

A holistic approach should be taken to the assessment

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

Critical aspects for assessment and evidence required to demonstrate competency in this unit

It is essential that competence is demonstrated in the knowledge and skills defined in this unit These may include the ability to

recognise the importance of material properties and qualities

apply approved procedures

take appropriate action to resolve faults or report faults to appropriate personnel

explain and implement emergency shutdown procedures

plan and set up work before beginning the hand mixing process

Consistent performance should be demonstrated For example look to see that

production standards are met consistently

mixing produces a consistent product

timing of mixing batches is consistent with production needs

Assessment method and context

Assessment will occur using industrial materials and equipment and will be undertaken in a worklike environment

Competence in this unit may be assessed

on a processing plant allowing for operation under all normal and a range of abnormal conditions

in a situation allowing for the generation of evidence of the ability to respond to problems

by using a suitable simulation andor a range of case studiesscenarios

through 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 practicalsimulation 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 Statement 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 studiesscenarios 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 andor assessment support when required Where applicable physical resources should include equipment modified for people with disabilities


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:

hand carts and trolleys

knives and other bag opening equipment

hoists/lifting equipment not requiring any special permits or licences

mixing spatulas or paddles

portable electrical paddle mixers

relevant personal protective equipment.

Hazards:

Typical hazards include:

spills and splashing

noxious fumes and vapours

hazardous materials

manual handling hazards.

Problems:

Respond to/rectify 'non-routine problems' means 'apply known solutions to a variety of predictable problems'. Typical process and product problems may include:

incorrect material composition

over or under mixing

broken mixing equipment

temperature variations.

variations in materials

contamination of materials

variations in setting times.

Variables:

Key variables to be monitored include:

atmospheric conditions

sequencing of material additions to the mix

volumes /mass of materials being mixed

mixing time

amount of moisture.