Elements and Performance Criteria

OHS requirements
OHS requirements may include:
legislation
protective equipment
material safety management systems
hazardous substances and dangerous goods code
local safe operation procedures
awards provisions
Environmental requirements
Environmental requirements may relate to:
liquid waste
solid waste
gas, fumes, vapour, smoke emissions, including fugitive emissions, and dust
excessive energy and water use
excessive noise
Appropriate personnel
Appropriate personnel may include:
supervisor
foreman
manager
trainer
mentor
teacher
team member
client
Enterprise procedures
Enterprise procedures may include:
the use of tools and equipment
instructions, including job sheets, cutting lists, plans, drawings and designs
reporting and communication
manufacturer specifications
operational procedures
Surface finishes
Surface finishes may include:
fine emery
shellite
Casting methods
Casting methods may include:
cuttlefish
centrifugal
vacuum casting
delft clay
Wax injection
Wax injection may include:
primarily to organic/synthetic wax injection, but may include resin and plastic materials injected under pressure for investment and burn out aspects within ‘lost wax’ casting procedures
Casting
Casting may include:
primarily by the ‘lost wax’ method of investment casting, but may include cuttlebone and sand processes as extensions
Metals and alloys
Metals and alloys may include:
gold
platinum
palladium
silver
copper
pewter and their alloys

Overview of assessment
A person who demonstrates competency in this unit must be able to apply casting techniques required in the production of jewellery and object designs.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
Assessors must be satisfied that the candidate can competently and consistently:
implement OHS workplace procedures and practices, including the use of risk control measures
demonstrate the application of jewellery casting techniques on more than one occasion and in different contexts. This includes:
producing wax models
performing investment procedures
producing moulds for lost wax, cuttlefish or sand casting
casting jewellery objects.
Context of and specific resources for assessment
Assessment may occur on the job or in an appropriately simulated environment. Access is required to real or appropriately simulated situations, including work areas, materials and equipment, and to information on workplace practices and OHS practices.
Where applicable, reasonable adjustment must be made to work environments and training situations to accommodate ethnicity, age, gender, demographics and disability.
Access must be provided to appropriate learning and/or assessment support when required. Where applicable, physical resources should include equipment modified for people with disabilities.
Method of assessment
Assessment must satisfy the endorsed Assessment Guidelines of the MEM05 Metal and Engineering 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.