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
What evidence can you provide to prove your understanding of each of the following citeria?
Prepare chemical etchants for use with metallographic samples
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Identify the hazards of the required chemical etchants and apply hazard controls Completed |
Evidence:
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Prepare etchant solution from bulk stocks following hazard controls and good laboratory practice Completed |
Evidence:
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Label and store etchants to standard Completed |
Evidence:
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Standardise/check etchants as required by procedures. Completed |
Evidence:
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Prepare sample for metallographic examination
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Undertake mechanical sample preparation Completed |
Evidence:
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Label/identify sample to procedure Completed |
Evidence:
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Select etchant(s) appropriate to the metal and the examination Completed |
Evidence:
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Etch/prepare metal surface to standard Completed |
Evidence:
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Protect prepared surface Completed |
Evidence:
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Undertake microscopic examination of sample.
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Set up microscope using appropriate fittings and magnifications Completed |
Evidence:
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Examine and identify different metallic and non-metallic phases Completed |
Evidence:
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Identify areas requiring further examination and/or photomicrographs Completed |
Evidence:
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Prepare photomicrographs
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Set up equipment and materials for photomicrograph Completed |
Evidence:
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Adjust photomicrograph equipment, including bright and dark field illumination Completed |
Evidence:
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Take photomicrograph Completed |
Evidence:
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Process and record photomicrograph Completed |
Evidence:
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Report result of examination
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Identify reporting requirements Completed |
Evidence:
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Make reference to appropriate national or international standards as required Completed |
Evidence:
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Prepare report to meet requirements Completed |
Evidence:
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Circulate and file report to procedures. Completed |
Evidence:
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