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 Class A foam for use
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Type offoam for application in a wildfire or on non-structural objects is selected depending on the required effect of the foam on the components of the fire triangle and the fuel Completed |
Evidence:
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Decision to apply Class A foam to Class A fuels at wildfire or non-structural incident is received from Incident Controller Completed |
Evidence:
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Foam proportioning or induction rate is selected in accordance with manufacturer’s recommendations or organisational guidelines to produce the solution strength required to achieve the operational objective and decision is communicated to crew preparing the foam Completed |
Evidence:
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Foam expansion or aspiration ratio is confirmed based on fuel type, operational requirements and the need to achieve maximum operationalbenefit Completed |
Evidence:
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Class A foam concentrate and equipment are prepared for use in accordance with safe work practices and in consideration of the potential environmental impact and required precautions to be complied with Completed |
Evidence:
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Correct personal protective clothing and equipment required for working with Class A foam is donned for handling concentrate and for handling solution. Completed |
Evidence:
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Operate Class A foam system and equipment
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Type of Class A foam system is confirmed Completed |
Evidence:
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Predetermined required amount of foam concentrate is added to the water flow using the appropriate equipment as directed by the Incident Controller Completed |
Evidence:
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Foam system available on the tanker or appliance is operated using predetermined proportioning or induction method Completed |
Evidence:
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Where system is manually regulated, proportioning percentage rate and flow are monitored and achievement of required operational objective is confirmed Completed |
Evidence:
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Apply Class A foam
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Foam system and equipment on the tanker or appliance is operated to produce the required solution strength suitable for its intended application as non aspirated or aspirated foam and for the type of fuel to which it is to be applied Completed |
Evidence:
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Class A foam is applied as a direct attack to extinguish the edge of the fire using non aspirated or low expansion foam nozzlesand the environmental impact of this application is minimised Completed |
Evidence:
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Class A foam is used to wet fuels to construct acontrol line adjacent to the fire edge using required foam proportion rate to contribute to fuel reduction burning, burning out and back burning Completed |
Evidence:
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Foam is applied to conduct mop-up/blacking out operations by regulating the flow to suit the required application type and rate Completed |
Evidence:
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Class A foam is applied to non-structural objects in accordance with organisational standard operating procedures for these types of fires Completed |
Evidence:
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Direct and indirect application of Class A foam are demonstrated in accordance with organisational operating procedures Completed |
Evidence:
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Potential for crop contamination as a result of application of Class A foam in organic and certified properties is taken into consideration and the environmental impact and appropriate preventative measures are implemented where practicable Completed |
Evidence:
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Store and handle Class A foam and prevent damage to equipment and the environment
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Class A foam is stored on tankers and appliances in the designated storage drum, rack or tank provided Completed |
Evidence:
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Storage arrangements in workplace and other locations for Class A drum stocks of foam concentrate are adhered to Completed |
Evidence:
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Measures to control leaks or spills are followed in accordance with organisational procedures Completed |
Evidence:
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Class A foam tanks are refilled or topped up using appropriate personal protective clothing and equipment, and approved foam concentrate transfer equipment in accordance with organisational procedures and environmental requirements Completed |
Evidence:
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Cleaning and safe disposal of any foam spills is undertaken in accordance with relevant safety data sheets (SDSs) Completed |
Evidence:
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Foam compatibility is taken into account when using Class A foam solution from different vehicles on the same fire, when mixing one manufacturer’s brand of Class A foam with another Completed |
Evidence:
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Environmental regulations as specified in organisational procedures are adhered to when using foam and cleaning spills or foam equipment around the workplace Completed |
Evidence:
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Procedures for foam storage, mixing and filling sites are implemented in accordance with appropriate guidelines Completed |
Evidence:
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Practices that do not contaminate water bodies, storm water drains or agricultural areas are adhered to when cleaning equipment at an incident or other location where Class A foam is used Completed |
Evidence:
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