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Elements and Performance Criteria

1. Prepare for gas testing.
   • Determine type of gas/atmosphere to be tested.
   • Select and calibrate equipment in accordance with procedures.
   • Determine gas testing regime/sampling pattern required.
   • Identify hazards from possible atmosphere contaminants.
   • Implement hazard control measures, including use of appropriate personal protective equipment.
2. Test gas.
   • Use gas testing equipment to test gas as required.
   • Interpret and report readings.
   • Monitor gas on an ongoing basis as required.
   • Take required action(s) if readings are unacceptable.
3. Maintain equipment.
   • Clean and maintain gas testing equipment in accordance with procedures.
   • Inspect and fault find monitoring equipment in accordance with procedures.
   • Return gas testing equipment to required location and in required condition.
   • Maintain records of tests and results in accordance with procedures.

Required Skills

This describes the essential skills and knowledge and their level required for this unit

As may be relevant to the plantsiteprocess knowledge of the following may be required

common chemical asphyxiants including hydrocarbons carbon dioxide carbon monoxide hydrogen cyanide and hydrogen sulphide

common irritants and corrosives including chlorine ammonia and acid bases

common flammable gases including acetylene petroleum methane ethane propane and butane

narcotics

explosive range upper and lower explosive limits

exposure standards time weighted average short term exposure limits peak limitation values examination of toxic effect at the level of a range of flammable gases

conditions under which atmospheres become hazardous

units of measurement used to express concentration of atmospheric contaminants mgcubic m ppm vv

Underpinning skills could include interpretation and communication of results of sampling

Language literacy and numeracy requirements

This unit requires the ability to read and interpret a meter and then communicate the conclusions

Writing is required to the level of completing required workplace reportsforms

Numeracy read the instrument and interpret the results as being safenot safe and so determine the required actions

Evidence Required

The Evidence Guide provides advice on assessment and must be read in conjunction with the Performance Criteria required skills and knowledge the Range Statement and the Assessment Guidelines for this Training Package

Overview of assessment

A holistic approach should be taken to the assessment

Assessors must be satisfied that the person can consistently perform the unit as a whole as defined by the Elements Performance Criteria and skills and knowledge

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

It is essential that competence is demonstrated in the knowledge and skills defined in this unit These may include the ability to

apply personal safety principles

interpret atmospheric conditions using atmospheric monitoring equipment

recommend appropriate action

maintain monitoring equipment

Consistent performance should be demonstrated For example look to see that

gathered evidence covers a range of variables all using different types of monitoring equipment

Assessment method and context

Assessment will occur using industrial test equipment on an industrial siteplant and will be undertaken in a worklike environment

Competence in this unit may be assessed

through written assignments

by a demonstration activity using workplacesatmospheres with detectable but safe levels of contaminants should be used

by using a suitable simulation andor a range of case studiesscenarios

through a combination of these techniques

In all cases it is expected that practical assessment will be combined with targeted questioning to assess the underpinning knowledge and theoretical assessment will be combined with appropriate practicalsimulation or similar assessment Assessors need to be aware of any cultural issues that may affect responses to questions

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

Specific resources for assessment

This section should be read in conjunction with the Range Statement for this unit of competency Resources required include suitable access to an operating plant or equipment that allows for appropriate and realistic simulation A bank of case studiesscenarios and questions will also be required to the extent they form part of the assessment method Questioning may take place either in the workplace or in an adjacent quiet facility such as an office or lunchroom No other special resources are required

Access must be provided to appropriate learning andor assessment support when required Where applicable physical resources should include equipment modified for people with disabilities

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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. Add any 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.

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

Context

Working environment may be hazardous, unpredictable, subject to time pressure, chaotic and expose responders to risk, on land or water, by day or night.

Safety information and procedures must include relevant legislation, Australian Standards, codes of practice, manufacturer instructions and organisational procedures.

Situations include

confined spaces

enclosed and partially enclosed spaces

storage tanks, silos, pits, pipes, shafts, ducts, transport vehicles and ships

testing as part of issuing a work permit

monitoring as part of working under a work permit

open areas

holding the gas tester by hand

lowering the gas tester into a space, eg on a line.

Workplace atmospheres may

include visible and invisible hazards

include hazardous surfaces

range from safe to unsafe.

Procedures

All operations are performed in accordance with procedures.

Procedures include all relevant workplace procedures, work instructions, temporary instructions and relevant industry and government codes and standards.

All operations to which this unit applies are subject to stringent Health, Safety and Environment requirements, which may be imposed through State 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.

Tools and equipment

This competency includes use of equipment and tools such as:

portable instruments

radiation detectors

sampling tubes and pumps

oxygen level meter

carbon monoxide detector

combustible gas detectors.

Problems

'Respond to routine problems' means 'apply known solutions to a limited range of predictable problems'.

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