Application

This unit of competency defines the skills and knowledge required to perform ultrasonic thickness testing in a range of metal fabrication and welding trade related industrial applications including fabrications, structures and components across a wide range of industries.

Ultrasonic tests are performed on critical component or structural zones. Actual and potential defects are to be considered, together with ongoing abnormalities.

This unit should not be selected when unit MEM24028 Undertake ultrasonic tests has already been selected.

Where interpretation of technical drawings is required unit MEM09002 Interpret technical drawing should also be selected.

Where the selection and use of engineering measurement is required unit MEM12023 Perform engineering measurements should also be selected.

Where the selection and use of power tools are required unit MEM18002 Use power tools/hand held operations should also be selected.

Band: A

Unit Weight: 2

What You'll Learn

Assessment Requirements

Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy the requirements of the elements and performance criteria and include:

following work instructions, standard operating procedures (SOPs) and safe work practices

identifying and interpreting specifications and standards for performing ultrasonic thickness testing

preparing the area for testing and identifying discontinuities including observed changes in material homogeneity and defects in accordance with procedures

carrying out ultrasonic thickness testing using techniques and equipment appropriate for material/s to be tested and interpreting and confirming basic thickness in accordance with procedures

undertaking numerical operations and calculations associated with performing ultrasonic thickness testing

reporting test results in accordance with procedures and customer service requirements on at least two occasions.

Note: Where a volume and/or frequency is not specified, demonstration must be provided at least once.

Knowledge Evidence

Evidence required to demonstrate the required knowledge for this unit must be relevant to and satisfy the requirements of the elements and performance criteria and include knowledge of:

safe work practices and procedures and use of personal protective equipment (PPE)

cleaning and preparation processes, procedures and work health and safety (WHS) requirements in relation to the preparation process for different test surfaces

basic principles of ultrasonic thickness testing and properties and behaviour of ultrasound

basic concepts associated with frequency, velocity, wavelength and amplitude

generation of ultrasound

types of discontinuities and their consequences

procedures, tools, equipment, techniques and system verification checks necessary to carry out the ultrasonic thickness test

advantages and limitations of ultrasonic thickness testing

basic maintenance and storage procedures for testing equipment

common basic defects, indications and thicknesses

ultrasonic thickness testing equipment

types of analog and digital displays including a-scan display and a b-scan display

types of couplants and their characteristics

straight beam testing method including:

calibration of thickness testing equipment using calibration blocks

setting of frequency

probe size and shape

thickness testing

recording and reporting including job records, routine reports and codes and standards

methods and/or procedures for reporting test results

variables affecting test results and methods of controlling them

component variables including size and geometry, distance location from entry surface, orientation to entry surface and reflecting characteristics of back wall

discontinuities and abnormalities identified through ultrasonic thickness testing:

corrosion and it’s thickness

loss of thickness and wear.

Assessment Conditions

Assessors must:

have vocational competency in performing ultrasonic thickness testing at least to the level being assessed with relevant industry knowledge and experience

satisfy the assessor requirements in the current vocational education and training legislation, frameworks and/or standards.

Where possible, assessment must occur in operational workplace situations. Where this is not possible or where personal safety or environmental damage are limiting factors, assessment must occur in a sufficiently rigorous simulated environment that reflects realistic operational workplace conditions that cover all aspects of workplace performance, including environment, task skills, task management skills, contingency management skills and job role environment skills.

Conditions for assessment must include access to all tools, equipment, materials and documentation required including relevant workplace procedures, product and manufacturing specifications.

Foundation Skills

• text: This section describes those language, literacy, numeracy and employment skills that are essential to performance. Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

Prerequisite Units

• {'code': 'MEM11011', 'title': 'Undertake manual handling'}
• {'code': 'MEM13015', 'title': 'Work safely and effectively in manufacturing and engineering'}
• {'code': 'MEM16006', 'title': 'Organise and communicate information'}
• {'code': 'MEM18001', 'title': 'Use hand tools'}

Parent Qualifications

• MEM30219 — Certificate III in Engineering - Mechanical Trade
  MEM
• MEM40119 — Certificate IV in Engineering
  MEM

Related Units

• MEM05009 — Perform automated thermal cutting
  Same training package
• MEM08012 — Prepare surfaces by abrasive blasting (basic)
  Same training package
• MEM10010 — Install pipework and pipework assemblies
  Same training package
• MEM18023 — Modify fluid power system operation
  Same training package
• MEM21011 — Service calendar and other dial indication mechanisms for watches
  Same training package
• MEM24026 — Undertake eddy current tests
  Same training package