The Evidence Guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

Assessment of this unit should include demonstrated competence on actual plant, equipment, structures or similar in a work environment. The unit will be assessed in as holistic a manner as is practical and may be integrated with the assessment of other relevant units of competency. Assessment will occur over a range of situations, which will include disruptions to normal, smooth operation.

This unit of competency requires an application of the knowledge contained in the use of the corrosion control systems and their integral equipment, to the level needed to maintain control and recognise and resolve problems.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Competence must be demonstrated in the ability to recognise and analyse potential situations requiring action and then in implementing appropriate corrective action. The emphasis should be on the ability to stay out of trouble rather than on recovery from a disaster.

Consistent performance should be demonstrated. In particular look to see that:

early warning signs of potential problems are recognised

the range of possible causes can be identified and analysed and the most likely cause determined

appropriate action is taken to ensure a timely resolution to meet requirements.

Context of and specific resources for assessment

Assessment will require access to an operating plant over an extended period of time, or a suitable method of gathering evidence of operating ability over a range of situations.

Assessment will occur over a range of situations which will include disruptions to normal, smooth operation.

Simulation or case studies/scenarios may be required to allow for timely assessment of parts of this unit of competency. Simulation should be based on the actual plant and will include 'walk-throughs' of the relevant competency components. A bank of scenarios/case studies/what ifs and questions will be required to probe the reasoning behind observable actions.

Method of assessment

Assessment must satisfy the endorsed assessment guidelines of the Manufacturing Training Package.

Assessment methods must confirm consistency and accuracy of performance (over time and in a range of workplace relevant contexts) together with application of underpinning knowledge.

Assessment methods must be by direct observation of tasks and include questioning on underpinning knowledge to ensure its correct interpretation and application.

Assessment may be applied under project related conditions (real or simulated) and require evidence of process.

Assessment must confirm a reasonable inference that competency is able not only to be satisfied under the particular circumstance, but is able to be transferred to other circumstances.

Assessment may be in conjunction with assessment of other units of competency where required.

Guidance information for assessment

Assessment processes and techniques must be culturally appropriate and appropriate to the language and literacy capacity of the candidate and the work being performed.

Required skills

observing and inspecting work environment

identifying and analysing hazards

comparing specifications

communicating with relevant personnel

identifying and solving problems

Required knowledge

the galvanic series

electrochemical corrosion

erosion and other non-electrochemical decay of materials as relevant

corrosion of different types of metals

forms of corrosion/causes of anode formation

sacrificial protection and coating

factors controlling the rate of corrosion

types of corrosion protection used and how they work

hazards (health, safety, environmental) associated with preparation and protection and relevant hazard controls

costs and hazards of corrosion

physics and chemistry relevant to the processes and the materials involved

process parameters and limits, e.g. blast media type/size/shape, temperature, pressure, flow and pH

coating/lining types as relevant

coating/lining application methods as relevant

duty of care obligations

hierarchy of hazard control

routine problems, faults and their resolution

corrective action appropriate to the problem cause

function and troubleshooting of major preparation and protection methods and their problems

types and causes of problems within operator's scope of skill level and responsibility

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.

Codes of practice/standards

Where reference is made to industry codes of practice, and/or Australian/international standards, the latest version must be used

Service environment

Service environment refers to:

the environment in which the systems or units (object) the technician is responsible for operate and may be a plant/factory area, a well head, major infrastructure or pipeline covering thousands of kilometers

Corrosion

Corrosion typically refers to:

any electrochemical process leading to the decay of metal. It may also be applied to decay processes in non-metals if appropriate

Appropriate action

Appropriate action may include:

determining problems needing action

determining possible fault causes

rectifying problem using appropriate solution within area of responsibility

following through items initiated until final resolution has occurred

reporting problems outside area of responsibility to designated person

Procedures

Procedures may be written, verbal, computer-based or in some other form. They include:

all work instructions

standard operating procedures

formulas/recipes

batch sheets

temporary instructions

any similar instructions provided for the smooth running of the plant

For the purposes of this Training Package, 'procedures' also includes good operating practice as may be defined by industry codes of practice (e.g. Responsible Care) and government regulations

Health, safety and environment (HSE)

All operations to which this unit applies are subject to stringent health, safety and environment requirements, which may be imposed through state/territory or Federal legislation, and these must not be compromised at any time. Where there is an apparent conflict between performance criteria and HSE requirements, the HSE requirements take precedence

Hazards

Hazards may include:

dust, mists, fumes and waste disposal issues