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Elements and Performance Criteria

1. Set up for treating
   • Review work order and where required check with appropriate personnel.
   • Select appropriate personal protective equipment and check for operational effectiveness.
   • Obtain chemicals and type and quantity of timber for treatment from storage.
   • Complete pre start-up equipment checks to ensure operational effectiveness.
2. Assist with treatment process
   • Monitor and maintain timber supply to the treatment process area.
   • Identify water requirements and check to ensure treatment process requirements are met.
   • Test moisture content of timber in line with organisational procedures.
   • Check and maintain strength of preservative solution at specified strength and volume.
   • Keep treating area clear of dust and debris in line with organisational safety procedures.
   • Safely handle treated timber and transfer to storage area.
   • Store chemicals in line with organisational safety procedures and report on stock levels.
   • Record and report processes and equipment faults to appropriate personnel.

Range Statement

Not Applicable

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Performance Evidence

A person demonstrating competency in this unit must satisfy all of the elements, performance criteria and foundation skills of this unit. If a specific volume or frequency is not stated below, then evidence must be provided that the following requirements have been performed on at least one occasion:

assist with the chemical timber treatment process in line with individual work orders for timber types, to be chosen from the following list:

native timber species

imported timber species

dressed timber

in-the-rough timber

stress and non-stress graded timber

sleepers

logs

rounded poles

beams

laminated beams

across the above jobs, check and maintain the strength and volume of preservative solutions including:

water-borne solutions

oil-based solutions

solvent-based solutions

at the completion of each of the above jobs, store chemicals and report on stock levels.

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Knowledge Evidence

A person competent in this unit must be able to demonstrate knowledge of:

environmental protection practices for chemically treating timber:

reducing water and energy use

cleaning plant, tools and equipment

disposing of hazardous substances

storage layout and categories for:

raw materials

storing finished boards

chemicals and preservative solutions

properties, at a basic level of understanding, of chemicals used to treat timber and their purpose:

light organic solvent chemicals

preservative solutions:

water-borne solutions

oil-based solutions

solvent-based solutions

personal safety risks associated with handling and using chemicals and methods used to minimise these

methods used to safely store chemicals

typical work flow processes for chemically treating timber

purpose, features and operation of equipment used to chemically treat timber including from the following list:

treaters

vats

ovens

resin tanks

effluent tanks

organisational procedures specific to chemically treating timber including:

workplace health and safety with particular emphasis on equipment lock out, use of personal protective equipment and handling hazardous substances

communication reporting lines

recording and reporting chemical stock levels, processes and equipment faults.

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