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Evidence Guide: MSL975041 - Perform fire assay techniques

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

 

MSL975041 - Perform fire assay techniques

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

Classify ore samples and select fluxing method

  1. Review client request to identify sample/analysis requirements, preparation methods and equipment involved
Review client request to identify sample/analysis requirements, preparation methods and equipment involved

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Inspect samples, compare with specifications, record and report any discrepancies

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Conduct visual and simple chemical tests to identify the type of sample and sulphide concentrations

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Review client sample/analysis history and identify possible chemical interferences

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Decide whether non-standard fluxing is required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select sample weight and flux to optimise precious metal recovery and purity

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare for precious metal recovery

  1. Identify hazards and workplace safety procedures associated with the sample, preparation methods, reagents and equipment
Identify hazards and workplace safety procedures associated with the sample, preparation methods, reagents and equipment

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Examine the recommended preparation method to identify the critical steps that will affect the quality of analytical results

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Plan parallel work sequences to optimise the throughput of multiple sets of samples

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assemble all required equipment, materials, reagents and check they are fit for purpose

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Recover precious metals from ore sample

  1. Weigh required amounts of sample and flux components to achieve an acceptable button and fluid slag
Weigh required amounts of sample and flux components to achieve an acceptable button and fluid slag

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select the type and size of pot to suit sample method and client requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Mix charge to ensure homogeneity and optimal collection of precious metal

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Set and monitor furnace temperature/time to ensure complete fusion

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Separate slag and button with minimal loss of lead collector

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintain sequencing in order to track samples, buttons and prills throughout the recovery process

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Separate lead collector from the required precious metal and check for contamination, losses and evidence of other precious metals

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Minimise personal exposure to hazards and the release of collectors to the work environment

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Collate laboratory documentation and the prepared sample and present for analysis

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Troubleshoot and correct failed recovery

  1. Monitor all stages of recovery for indicators of potential loss
Monitor all stages of recovery for indicators of potential loss

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Recognise undesirable recovery conditions and decide whether the process requires correction

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Choose an appropriate corrective action and re-start the process

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Document any adjustments made to standard methods and re-sequencing of samples

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Seek advice when problems are beyond scope of responsibility or knowledge

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Perform daily maintenance of assay equipment

  1. Segregate and dispose of waste in accordance with workplace requirements
Segregate and dispose of waste in accordance with workplace requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Grade and inspect pots using established criteria prior to storage for re-use

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Inspect furnaces for cracks, unserviceable components and remove slag

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Inspect and clean extractive systems

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Report defective equipment and consumable requirements to appropriate personnel

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Required Skills and Knowledge