Assessor Resource

DEFEXO149
Prepare explosives for metal hardening

Assessment tool

Version 1.0
Issue Date: April 2024


This unit describes the skills required to prepare explosives for metal hardening. Metal hardening using sheet explosives is a specialised application of explosives and is used to harden metals such as rail points.

This unit was developed for personnel who are specialists working within proof and trials organisations, but may be applicable to any individual in this field of work.

The skills and knowledge described in this unit must be applied within the legislative, regulatory and policy environment in which they are carried out. Organisational policies and procedures must be consulted and adhered to.

Those undertaking this unit would work independently or as part of a team under indirect supervision. They would use discretion and judgement, and take responsibility for the quality of their output. They would conduct routine tasks in known contexts.

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

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


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.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria on at least one occasion and includes:

analysing and evaluating information

preparing explosives for metal hardening

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and includes:

operational knowledge of:

explosive ordnance in relation to hardening steel

explosive shapes

explosives mixture and compounds

figure of sensitivity

insensitiveness

licensing requirements

sensitivity of explosives

wave shaping

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must occur in workplace operational situations. Where this is not appropriate, assessment must occur in simulated workplace operational situations that reflect workplace conditions.

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.

Resources for assessment must include access to:

a range of relevant exercises, case studies and/or simulations

acceptable means of simulation assessment

applicable documentation, including workplace procedures, regulations, codes of practice and operation manuals

relevant materials, tools, equipment and PPE currently used in industry.

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.

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Non-essential conditions may be found in the Companion Volume Implementation Guide.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria on at least one occasion and includes:

analysing and evaluating information

preparing explosives for metal hardening

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and includes:

operational knowledge of:

explosive ordnance in relation to hardening steel

explosive shapes

explosives mixture and compounds

figure of sensitivity

insensitiveness

licensing requirements

sensitivity of explosives

wave shaping

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must occur in workplace operational situations. Where this is not appropriate, assessment must occur in simulated workplace operational situations that reflect workplace conditions.

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.

Resources for assessment must include access to:

a range of relevant exercises, case studies and/or simulations

acceptable means of simulation assessment

applicable documentation, including workplace procedures, regulations, codes of practice and operation manuals

relevant materials, tools, equipment and PPE currently used in industry.

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
Read and clarify metal hardening instructions. 
Acquire required resources and check for serviceability. 
Identify explosives to meet measured hardening requirements. 
Identify and prepare templates used in association with the cutting of the sheet explosives. 
Monitor and adhere to environmental requirements. 
Prepare explosives within proof or trial parameters. 
Maintain records throughout the process to ensure traceability of preparation activities. 
Inspect sheet explosives to ensure serviceability and safety. 
Cut and label sheet explosives to the required length and shape. 
Prepare sheet explosives for transport to the range. 
Identify detonators. 
Check detonators for continuity and repack for transport. 
Return to store or dispose of excess explosives. 
Make area safe. 
Maintain documentation appropriate to the task. 
Identify detonators. 
Check detonators for continuity and repack for transport. 
Return to store or dispose of excess explosives. 
Make area safe. 
Maintain documentation appropriate to the task. 
Read and clarify metal hardening instructions 
 
 
 
Monitor and adhere to environmental requirements 
 
 
 
 
 
Return to store or dispose of excess explosives 
 

Forms

Assessment Cover Sheet

DEFEXO149 - Prepare explosives for metal hardening
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

DEFEXO149 - Prepare explosives for metal hardening

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: