Unit of competency details

PMBPROD246 - Hand mix materials (Release 1)


Usage recommendation:
Supersedes and is equivalent to PMBPROD246C - Hand mix materialsSupersedes and is equivalent to PMBPROD246C Hand mix materials 21/Jun/2016
Is superseded by and equivalent to PMBPROD246E - Hand mix materialsPMBPROD246E Hand mix materials supersedes and is equivalent to PMBPROD246 Hand mix materials 17/Feb/2021

ReleaseRelease date
1 1 (this release) 22/Jun/2016


SchemeCodeClassification value
ASCED Module/Unit of Competency Field of Education Identifier 030305 Materials Engineering  

Classification history

SchemeCodeClassification valueStart dateEnd date
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 PMBPROD246C Hand mix materials


This unit of competency covers the skills and knowledge required to hand mix materials in the plastics, rubber and cablemaking sectors, other than the composites sector.

This unit of competency applies to operators who are required to select materials and equipment, plan and sequence the work, mix ingredients, check conformity to specifications and recognise routine and non-routine problems and take appropriate action.

This unit of competency applies to an individual working alone or as part of a team or group and working in liaison with other shift team members, team leader and supervisor, as appropriate.

No licensing, legislative or certification requirements apply to this unit at the time of publication.

Pre-requisite Unit


Competency Field


Unit Sector

Not applicable

Elements and Performance Criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.


Identify the requirements for hand mixing of materials 


Identify materials to be included in the hand mixing process


Identify hand mixing equipment and components used in the mixing process


Identify characteristics of the blended material produced in relation to the impact on the production process and final product quality


Compare stages in the mixing process with the quality requirements for the product


Pre-plan hand mixing operations 


Identify work requirements from workplace approved operating procedures


Identify equipment and processes used for materials measurement, preparation, mixing and for the delivery of material to production area


Identify materials, including base raw materials and required additives


Identify hazards connected with materials and process from observation of workplace reference materials, including safety data sheets (SDS) and equipment instructions


Identify appropriate measures to minimise risks from the identified hazards


Plan task sequences within scope of authority


Check hand mixing set-up 


Identify equipment information, required quality specifications and standard operating procedures (SOPs)


Check materials for conformity with workplace operational requirements


Discard non-conforming materials or make adjustments to blending operations in accordance with workplace procedures


Identify changes in materials at each stage of the blending process


Conduct hand mixing operations 


Monitor hand mixing operations noting materials quantity and product quality


Make adjustments to remedy faults and non-conformity to product blend standards, where applicable


Move materials to point of use and pour in the appropriate manner


Collect and reuse material which is able to be reprocessed and deal with waste and scrap in accordance with workplace procedures


Complete equipment clean-up and waste management in accordance with workplace procedures


Respond to product quality improvement requests 


Monitor hand mixing process and note conditions which may affect product quality standards


Report process variations within workplace procedures


Note and implement authorised changes in SOPs and specifications


Respond to routine problems to procedures 


Recognise known faults that occur during the operation


Identify and take action on causes of routine faults


Log problems as required


Identify non-routine process and quality problems and take appropriate action

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

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.

Regulatory framework  

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 and hazardous materials
  • 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.


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:

  • emergency procedures
  • work instructions
  • SOPs
  • safe work method statements (SWMS)
  • formulas/recipes
  • batch sheets
  • temporary instructions
  • any similar instructions provided for the smooth running of the plant.

Tools and equipment 

Tools and equipment will be selected as required from:

  • measurement equipment
  • hand carts and trolleys
  • basic hand tools required for opening of material packaging
  • hoists/lifting equipment not requiring any special permits or licences
  • mixing spatulas or paddles
  • portable electrical paddle mixers
  • relevant personal protective equipment (PPE).


Hazards must be identified and controlled. Identifying hazards requires consideration of:

  • weight, shape, volume of materials to be handled
  • hazardous products and materials
  • sharp edges, protrusions or obstructions
  • slippery surfaces, spills or leaks
  • heat, smoke, dust, vapours or other atmospheric hazards
  • electricity
  • gas
  • gases and liquids under pressure
  • structural hazards
  • equipment failures
  • machinery, equipment and product mass
  • other hazards that might arise.

Routine problems 

Routine problems must be resolved by applying known solutions.

Routine problems are predictable and include one or more of:

  • incorrect material composition
  • over or under mixing
  • broken mixing equipment
  • temperature variations
  • variations in materials
  • contamination of materials
  • variations in setting times.

Known solutions are drawn from one or more of:

  • procedures
  • training
  • remembered experience.

Non-routine problems must be reported according to according to relevant procedures.

Unit Mapping Information

Release 1. Supersedes and is equivalent to PMBPROD246C Hand mix materials


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 PMBPROD246C Hand mix materials

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 procedures, job specifications, material labels and safety data sheets (SDS)
  • select and use materials, tools and equipment to meet job specifications
  • combine and mix ingredients according to procedures
  • monitor key variables, including:
  • atmospheric conditions
  • sequencing of material additions to the mix
  • volumes/mass of materials being mixed
  • mixing time
  • amount of moisture
  • product quality
  • identify hazards and apply relevant hazard controls
  • implement emergency shutdown procedures
  • apply safety procedures

·  apply housekeeping procedures

·  apply waste management procedures

  • recognise routine and non-routine problems
  • identify when the operator is able to rectify problems, when assistance is required and who is the appropriate source for assistance
  • take action to resolve faults or report problems to appropriate personnel
  • distinguish between possible causes of routine problems, including:
  • wrong raw materials/additives/catalyst
  • incorrect quantity of materials/additives/catalyst
  • contaminated materials/additives/catalyst
  • inadequate mixing
  • incorrect setting times/temperature/composition
  • atmospheric conditions
  • process/procedural problems
  • communicate effectively with team/work group and supervisors
  • complete workplace records
  • use measuring systems, scales and calculating devices
  • do basic arithmetical manipulations, including additions, subtractions, divisions, fractions and percentages.

Knowledge Evidence

Must provide evidence that demonstrates knowledge relevant to their job sufficient to operate under routine only supervision and to solve routine problems, including knowledge of:

  • types and applications of materials commonly mixed by hand
  • characteristics of commonly blended materials and the impact on production process and final product quality
  • common mixing methods and related tools/equipment
  • sources of contamination that may affect the mixture and how to eliminate them
  • routine and non-routine problems that may arise, the range of possible causes and appropriate actions
  • impact of incorrect or faulty materials on mixture
  • 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.
  • In all plants it may be appropriate to assess this unit concurrently with units such as:
  • teamwork
  • communication.
  • The collection of performance evidence:
  • should occur over a range of situations which include typical disruptions to normal, smooth operations and provide for demonstration of responding to problems
  • will typically include a supervisor/third-party report or other evidence, focusing on consistent performance and problem recognition and solving. A supervisor/third-party report must be prepared by someone who has a direct, relevant, current relationship with the person being assessed and who is in a position to form a judgement on workplace performance relevant to the unit of competency
  • must include the use of industry appropriate materials, tools, equipment, data and documentation
  • may use industry-based simulation for all or part of the unit particularly where safety, lack of opportunity or significant cost is an issue.
  • Assessment should occur in operational workplace situations. Where this is not possible or where personal safety or environmental damage are limiting factors assessment must occur in 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.


Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=932aacef-7947-4c80-acc6-593719fe4090