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Evidence Guide: PMC555031B - Choose materials for an application

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

PMC555031B - Choose materials for an application

What evidence can you provide to prove your understanding of each of the following citeria?

Determine possible product properties

  1. Estimate product properties from different materials and processing conditions
  2. Predict the impact of different grades of materials/additives on product properties
  3. Predict the impact of different processing conditions on product properties
Estimate product properties from different materials and processing conditions

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Predict the impact of different grades of materials/additives on product properties

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Predict the impact of different processing conditions on product properties

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Choose materials/ material mix for an application

  1. Select appropriate base materials for an application based on the material properties
  2. Determine reinforcements/additives required to meet product specification
  3. Predict failure mechanism for selected mix and modify selection if appropriate
  4. Identify any health, safety or environmental issues with materials and modify selection if appropriate
  5. Develop formulation and select appropriate production method
Select appropriate base materials for an application based on the material properties

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Determine reinforcements/additives required to meet product specification

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Predict failure mechanism for selected mix and modify selection if appropriate

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Identify any health, safety or environmental issues with materials and modify selection if appropriate

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Develop formulation and select appropriate production method

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Organise testing of product and interpret test results

  1. Select appropriate tests for product based on test purpose and limitations, and material being tested
  2. Test colour using colour coordinates as required
  3. Interpret test results and modify formulation/production method as required to meet product specification
Select appropriate tests for product based on test purpose and limitations, and material being tested

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Test colour using colour coordinates as required

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Interpret test results and modify formulation/production method as required to meet product specification

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

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.

Required Skills and Knowledge

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

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. 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)