Elements and Performance Criteria

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.
Procedures
All operations are performed in accordance with standard procedures and work instructions.
Operation of steam chambers
This unit includes the operation of various steam chambers for the curing of concrete products and pipes and may include:
purpose built, low pressure steam chambers
autoclaves (high or low pressure)
temporary means of retaining low pressure steam near the curing concrete product
Variations
Variations include:
nature and type of plant configuration
nature of curing process (e.g. hot water, low pressure steam, high pressure steam, autoclaving)
nature and type of steam chamber (e.g. tarpaulin cover, steam chamber and autoclave)
nature and type of product to be cured
safe work practices and the use of protective clothing, hard hats and safety glasses
Checking equipment
Checking equipment includes:
chamber doors and locking equipment
transfer cars to fill chambers
steam and pressure generation equipment
pressure and temperature gauges
Equipment
Equipment may include:
instruments and PLCs but not control panels
measuring and/or recording equipment
communication equipment
tarpaulins used to cover concrete
Typical problems
Typical problems may include:
equipment malfunctions
temperature or pressure fluctuations
product quality variations
material/feed variations
chamber pressure losses
Occupational health and safety (OHS)
All operations are subject to stringent OHS requirements and these must not be compromised at any time. Where there is an apparent conflict between performance criteria and OHS requirements, the OHS requirements take precedence

EVIDENCE GUIDE
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
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.

Critical aspects for assessment and evidence required to demonstrate competency in this unit
It is essential that the equipment and the process be understood and that the importance of critical settings and readings are known.
Competence must be demonstrated in the ability to recognise and analyse potential situations requiring action and then in implementing appropriate corrective action.
Consistent performance should be demonstrated. In particular look to see that:
startup and shutdown procedures are applied without variation
signals and alarms are responded to immediately
isolation procedures for maintenance are followed
all OHS requirements are followed.
Competence must be demonstrated in the operation of all ancillary equipment to the level required for this unit of competency.

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
Individual enterprises may choose to add prerequisites and co-requisites relevant to their processes.

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.