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?
Determine the combustible characteristics of the material and extent of explosion hazard
|
|
| Knowledge of the factors considered in classification of combustible dust atmospheres is applied Completed |
Evidence:
|
Consideration is given to reducing the extent of explosion hazards by the application of hierarchy of risk controls |
|
Completed |
Evidence:
|
Dust combustibility is determined in consultation with process specialists and relevant sources of information and, where applicable, obtaining confirmation by commissioning laboratory tests |
|
Completed |
Evidence:
|
Material characteristics such as particle size, moisture content, cloud and layer minimum ignition temperature and electrical resistivity, are obtained from process specialists and relevant sources of information and, where applicable, laboratory tests |
|
Completed |
Evidence:
|
Dust containment and sources of release, including likely formation of dust layers are identified from process personnel with operational and maintenance experience |
|
Completed |
Evidence:
|
The probability that dust will be released and form an explosive dust atmosphere in an installation is determined from possible causes and characteristics of release taking into account ventilation and dust extraction |
|
Completed |
Evidence:
|
Assign the type and extent of zones
|
|
| Sources and grades of release and dust deposits in layering that may occur in the area are established from collected data and consultation with process specialists Completed |
Evidence:
|
Area classification zones are attributed according to the frequency and duration of the occurrence of explosive dust atmospheres |
|
Completed |
Evidence:
|
The extent of each zone is determined in accordance with the relevant standard and in consideration of examples of locations that may give rise to a zone |
|
Completed |
Evidence:
|
The nature of housekeeping is taken into account |
|
Completed |
Evidence:
|
Document classification and delineation of zones
|
|
| Area classification processes and procedures are documented as required by the relevant standards including the level of housekeeping on which the classification is based Completed |
Evidence:
|
Classification documentation records are provided for future reference and for incorporation in the verification dossier |
|
Completed |
Evidence:
|