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Elements and Performance Criteria

  1. Prepare for blasting
  2. Prepare explosives
  3. Place charges
  4. Fire charges
  5. Conduct post-firing procedures

Evidence Required

What evidence is required to demonstrate competence for this standard as a whole

Competence in preparing and using explosives requires evidence that explosives procedures including preparation mixing and detonation and clean up in the field have been safely carried out according to enterprise guidelines and industry best practice The skills and knowledge required to prepare and use explosives must be transferable to a range of work environments and contexts For example this could include different explosives procedures locations and local conditions

What specific knowledge is needed to achieve the performance criteria

Knowledge and understanding are essential to apply this standard in the workplace to transfer the skills to other contexts and to deal with unplanned events The knowledge requirements for this unit are listed below

Fire precautions and prevention procedures

Appropriate explosives mixing procedures

The calculation of explosives quantities

Blast measurements

Explosives preparation placement firing and post firing procedures

The regulations relating to explosives use in the enterprise

Relevant standards issued by Standards Association of Australia

Related environmental issues and risks to livestock including poisoning

What specific skills are needed to achieve the performance criteria

To achieve the performance criteria some complementary skills are required These skills include the ability to

Use explosives safely and effectively according to enterprise requirements

Dispose of surplus defective or unwanted detonators or explosives safely

Accurately complete usage and disposal reports

Correctly and uniformly mix explosives components

Apply the regulations relating to explosives use according to enterprise requirements

What processes should be applied to this competency standard

There are a number of processes that are learnt throughout work and life which are required in all jobs They are fundamental processes and generally transferable to other work functions Some of these are covered by the key competencies although others may be added The questions below highlight how these processes are applied in this competency standard Following each question a number in brackets indicates the level to which the key competency needs to be demonstrated where not required perform the process perform and administer the process and perform administer and design the process

How can communication of ideas and information be applied

Communicating with all personnel with regard to timing and blasting intentions

How can information be collected analysed and organised

In the organisation or preparation for conduct of blasting and post firing procedures

How are activities planned and organised

According to enterprise practices and procedures

How can team work be applied

Maximise the safety of all personnel involved by ensuring the safest possible usage of explosives

How can the use of mathematical ideas and techniques be applied

Measuring andor estimating quantities

How can problemsolving skills be applied

Through identifying potential hazards in the planning and preparation work

How can the use of technology be applied

Electrical firing communicating and calculating with staff neighbours etc

Are there other competency standards that could be assessed with this one

This competency standard could be assessed on its own or in combination with other competencies relevant to the job function

For information about assessing this competency standard for consistent performance and where and how it may be assessed refer to the Assessment Guidelines for this Training Package


Range Statement

Range of Variables

The Range of Variables defines the different contexts, work environments and parameters governing the performance of this competency standard. The variables chosen in training and assessment will need to reflect local industry and regional contexts

Who is permitted to use explosives?

Only licensed persons.

Which licence is required for electrical detonation?

Varies according to state legislation.

What hazards to electrical firing may be included?

Thunderstorms, both high and low voltage power transmission, electric fencing, conductive earths, radio and TV transmitters, mobile phones, two way radios, electrostatic hazards and other stray currents.

Under which procedures can explosives be used?

Only under the approved procedures prescribed in relevant standards issued by the Standards Association of Australia.

In which situation might control devices not be required?

Blasting mats or other control devices may not be required in a field situation.

How should surplus, unserviceable or defective explosives or components be destroyed?

Through detonating, burning or dissolving in water.

Where would precautions and methods relating to use of explosives be found?

AS 2187, Part 2 1993 which includes operations prior to charging, charging, preparation for firing, firing, misfires and preparation of primers.

In what form should ammonium nitrate be?

Porous prill.

What items may be used for mixing?

Items may include but are not restricted to plastic buckets, bottles and scoops.

For what purpose should a colouring agent be used?

To differentiate mixed explosive from unmixed ingredients and to aid in the determination of uniformity of the mix.

How should excess mix be stored?

It must be packed and labelled in accordance with current state legislation.

For what purpose are colouring agents used?

To gauge uniformity visually.

Which explosives may be included in those for disposal?

Those considered surplus or unsafe for transport, storage or use.

For more information on contexts, environment and variables for training and assessment refer to the Sector Booklet.