The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included. |
Relevant compliance documentation may include: | legislative, organisational and site requirements and procedures manufacturer's guidelines and specifications Australian standards Employment and workplace relations legislation Equal Employment Opportunity and Disability Discrimination legislation |
Legislation may include Acts and regulations dealing with: | mining safety and health mine inspection OHS explosives |
Auxiliary equipment may be anything that is portable and mobile that is not part of the fixed infrastructure, and may include: | gantry cranes and attachments (e.g. overhead) hand and power tools hoses (water and air) pump systems |
Pre-start checks may include: | availability of equipment detection of conditions that are unusual fluid levels job requirements personnel availability walk through plant |
Environmental issues may include: | drainage dust emissions flora and fauna hazardous chemicals noise recycling run-off spills waste management and disposal water quality |
Start-up procedures may include the inspection of: | cameras and monitors distribution control system (DCS) drive belts filters fluid levels (grease, oil, water) hoppers and launders interlocks isolations pipes and flanges pumping system valves visual and audio warning devices and lights water systems (e.g. sprays and columns) |
Plant may include: | compressors and blowers conditioning tanks flotation cells and columns reagent dosing |
Indicator readings may measure: | concentrations current densities grade heat levels pressure flows unusual noises |
Monitoring may include: | air flows blockages and spillages check current draw feed rates in stream analysis (ISA) on stream analysis (OSA) particle size indicators (PSI) power pressures pulp density pulp levels temperatures wear and tear |
Floatation methods may include: | bulk flotation controlled potential sulphide (CPS ) pre-float |
Floatation quality targets may include: | concentrate grade consumption targets density Eh (electro chemical potential) percentage of recovery pH level |
Equipment and plant cleaning methods may include: | hosing with water |
Post-shutdown checks are like pre-start checks. | |
The methods used to optimise the plant may include: | adjustment to reagent usage |
Materials may be wet and may include: | air reagents slurry |
Contaminants are anything other than the slurry and reagents. Common contaminants may include: | oil plastic wood fibre |
Site conditions may include: | day and night weather conditions working at heights |