Assessor Resource

PMC555031B
Choose materials for an application

Assessment tool

Version 1.0
Issue Date: April 2024


This unit of competency applies to technicians who are able to bring together an understanding of the basics of chemistry and physics and apply this understanding to determine the properties of process materials and products.

This competency applies to all work environments and sectors within the industry.

This competency is typically performed by technicians developing new products or applying this knowledge to advanced process/product problem solving.

This unit of competency covers the application of the knowledge of materials characteristics to their properties so enabling the choice of an appropriate material mix for an application. It is based on PMBTECH505A Choose polymer materials for an application.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)

Employability Skills

This unit contains employability skills.



Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

The Evidence Guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

The unit will be assessed in as holistic a manner as is practical and may be integrated with the assessment of other relevant units of competency.

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

Competence must be demonstrated in the ability to recognise and analyse potential situations requiring action and then in implementing appropriate corrective action.

Consistent performance should be demonstrated. In particular look to see that:

knowledge of material properties to the selection of appropriate materials to an application is applied.

Context of and specific resources for assessment

Competence in this unit may be assessed:

by observation of an actual design project where the assessee takes a lead technical role in the material selection

by use of a suitable project where arrangements are made to include the testing aspects.

Assessment will require access to an operating plant over an extended period of time, or a suitable method of gathering evidence of operating ability over a range of situations.

Assessment will occur over a range of situations which will include disruptions to normal, smooth operation.

Simulation or case studies/scenarios may be required to allow for timely assessment of parts of this unit of competency. Simulation should be based on the actual plant and will include 'walk-throughs' of the relevant competency components. A bank of scenarios/case studies/what ifs and questions will be required to probe the reasoning behind observable actions.

Method of assessment

Individual enterprises may choose to add prerequisites and co-requisites relevant to their processes.

Guidance information for assessment

Assessment processes and techniques must be culturally appropriate and appropriate to the language and literacy capacity of the candidate and the work being performed.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

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.

Required skills

Required skills include:

implementing enterprise standard procedures and policies, relevant regulatory requirements and national/international standards within appropriate time constraints and in a manner relevant to the job

adjusting/correcting/responding to work requirements

identifying and solving problems

working in a team or individually, as required

reading and numeracy to interpret workplace documents and technical information

Required knowledge

Required knowledge includes:

basic chemistry and physics as relevant to the products and process

process and material characteristics sufficient to enable the selection of materials with appropriate base properties including:

property changes caused by different processing methods and conditions

typical processing conditions for typical products

property changes caused by using additives

mechanism of reinforcement where appropriate

test methods

properties and applications of materials

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. 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) may also be included.

Procedures

All operations are performed in accordance with standard procedures and work instructions

Standard procedures

Standard procedures refer to:

all relevant workplace procedures, work instructions, temporary instructions and relevant industry and government codes and standards

Properties

Properties include:

particle size, size distribution, particle shape and porosity

flow properties, melt viscosity

rigidity, tensile yield strength, modulus and impact strength

brittle and ductile failure

dimensional and thermal stability

Reinforcements

Reinforcements include:

silicas and clays

glass

fibres

steel

Test methods

Test methods include:

environmental tests - ultra-violet (UV), environmental stress, cracking, weatherometer and chemical resistance

mechanical tests - tensile, creep, coefficient of friction, wear resistance/abrasion and density

chemical/analytical tests

colour tests - colour coordinates (LAB), colour difference ((E)

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

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Estimate product properties from different materials and processing conditions 
Predict the impact of different grades of materials/additives on product properties 
Predict the impact of different processing conditions on product properties 
Select appropriate base materials for an application based on the material properties 
Determine reinforcements/additives required to meet product specification 
Predict failure mechanism for selected mix and modify selection if appropriate 
Identify any health, safety or environmental issues with materials and modify selection if appropriate 
Develop formulation and select appropriate production method 
Select appropriate tests for product based on test purpose and limitations, and material being tested 
Test colour using colour coordinates as required 
Interpret test results and modify formulation/production method as required to meet product specification 

Forms

Assessment Cover Sheet

PMC555031B - Choose materials for an application
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

PMC555031B - Choose materials for an application

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: