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Elements and Performance Criteria

1. Prepare inspection areas for eddy current testing
   • Inspection areas are identified, cleaned and prepared for testing using appropriate procedures and materials.
   • Preparation processes are carried out in accordance with the relevant procedures, statutory and OH&S requirements.
   • Inspection areas are visually assessed and obvious discontinuities are identified.
2. Perform eddy current testing
   • The most appropriate eddy current test for the material/application is selected.
   • Test equipment is selected and prepared in accordance with standards and/or procedures.
   • Eddy current test is carried out in accordance with relevant standards, specifications and OH&S requirements.
   • Eddy current test equipment is checked for defects, and maintained and stored in accordance with procedures, OH&S requirements and manufacturer instructions.
3. Interpret and report the results of eddy current tests
   • Indications are assessed and defects are detected and classified in accordance with national and international codes and standards.
   • Defects are confirmed in accordance with enterprise procedures and industry practices.
   • Test results are reported in accordance with enterprise procedures, accepted industry practices and customer service requirements.

Required Skills

Required skills

Look for evidence that confirms skills in interpreting and following procedures identifying inspection areas identifying discontinuities and defects selecting appropriate testing techniques and procedures reading interpreting and applying relative testing standards reading interpreting and applying relative conformance standards using calculations relating to eddy current testing assessing risk entering routine and familiar information onto proformas and standard workplace forms

Required knowledge

Look for evidence that confirms knowledge of cleaning and preparation processes procedures and OHampS requirements in relation to the preparation process established assessment procedures and techniques types of discontinuities and their consequences procedure for carrying out eddy current testing tools equipment techniques and system verification checks necessary to carry out eddy current testing basic principles of electricity magnetism electromagnetism and eddy current testing Reactance field made by eddy current Biot and Savant law Definition Practical right hand rules Amperes law Definition Applications toroid infinite coil flat coil Lenz law Definition Autoinduction factor Mutual induction factor Coupling factor induced currents short circuit coil metallic mass skin effect reactance cylindrical bars theory of eddy currents tubes geometric defect characterisation multiple defects characteristics of eddy current probes eddy current equipment transmission reception data presentation equipment controls types of equipment physical properties of materials electrical conductivity magnetic permeability applications of eddy curry testing influence of various parameters on eddy current measurement defect position and orientation compensation structure and geometry of test part coupling influence relative speed limitations of eddy current testing hazards and safety precautions associated with eddy current testing basic maintenance and storage procedures for testing equipment common basic defects methodsprocedures for reporting test results any applicable industry standards nationalAustralian standards NOHSC guides StateTerritory regulatory codes of practicestandards use and application of personal protective equipment safe work practices and procedures

Evidence Required

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	A person who demonstrates competency in this unit must be able to perform eddy current testing Competency in this unit cannot be claimed until all prerequisites have been satisfied
Critical aspects for assessment and evidence required to demonstrate competency in this unit	Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria including required knowledge and be capable of applying the competency in new and different situations and contexts
Context of and specific resources for assessment	This unit may be assessed on the job off the job or a combination of both on and off the job Where assessment occurs off the job that is the candidate is not in productive work then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team The assessment environment should not disadvantage the candidate This unit could be assessed in conjunction with any other units addressing the safety quality communication materials handling recording and reporting associated with performing eddy current testing in a range of industrial applications or other units requiring the exercise of the skills and knowledge covered by this unit
Method of assessment	Assessors should gather a range of evidence that is valid sufficient current and authentic Evidence can be gathered through a variety of ways including direct observation supervisors reports project work samples and questioning Questioning techniques should not require language literacy and numeracy skills beyond those required in this unit of competency The candidate must have access to all tools equipment materials and documentation required The candidate must be permitted to refer to any relevant workplace procedures product and manufacturing specifications codes standards manuals and reference materials
Guidance information for assessment

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Range Statement

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.
Preparation processes	Surface cleaning and drying
Obvious discontinuities	Observed changes in material homogeneity
Defects	Corrosion, metal fatigue, deformation in non-ferrous/ferrous alloys steels, fatigue cracks, stress corrosion cracking, heat damage, metal properties sorting, manufacturing defects, coating thickness measurement etc.

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