Elements and Performance Criteria

Inspection and testing techniques may include hydrostatic testing; magnetic particle inspection; radiography; ultrasonic inspection; dye penetrant inspection; gas leakage detection equipment
Leaks may be classified into Class 1 - repair until completed; Class 2 - repair within 7 days; Class 3 - monitor, repair not economic; Class 4 - no leak found
Repair and maintenance equipment may include oxy/acetylene cutting equipment; pipe cutters; cranes ; dogging and slinging activities; cold cutting equipment; linepipe and station pipe; screwed and welded fittings; flanges, gaskets and studs/nuts; hand and power tools; transport equipment
Repair/modification techniques may include hot tapping operations; hot tap and stoppling operations; pipe threading machinery; welding and cutting operations; gluing; fitting of pipeline repair sleeves and clamps; use of Lam Air Movers; use of pipe alignment clamps; use of Chiksans; fusion
Documentation/records may include SOPs; OH&S and environmental legislative requirements; pipeline alignment drawings; process & instrument drawings; workshop fabrication drawings; use of hand and power tools

Critical aspects of evidence
Pipeline inspecting and testing techniques; correctly interpreting pipeline drawings and plans; correctly diagnosing and assessing pipeline faults; preparing and planning for repairs; OH&S and environmental legislative requirements; completing the repair

Context of assessment
Assessment of competency, including attainment of relevant knowledge and skills may be made through practical demonstration in an actual work environment or simulation of such an environment.

Specialised resources required for training and assessment
Availability of accredited industry assessors; system which facilitates recording of trainees' profiles and progress; facilities for workplace or simulated environment assessment; appropriate equipment required to co-ordinate pipeline repair and modification

Pre-requisites and co-requisite
This unit requires, as an entry, attainment of the Certificate II in Gas Operations and related units of competence.
Entry may also be accepted from those who have achieved an equivalent AQF level two-qualification competency outcome. As such, they would be expected to have attained sufficient relevant underpinning knowledge and skills which could be used to accelerate their progress through this unit to the Certificate III in Gas Operations. However, should this not be the case a suitable bridging program is to form part of the entry requirement.
Additionally, this unit should be assessed in conjunction with or after competency has been demonstrated in Three of the following Units Unit NGS 190 Commission/Decommission Pipelines, Unit NGS 230 Launch and Recover PIG, Unit NGS 260 Perform Routine Maintenance on Pipeline, Facilities and Equipment, Unit NGS 280 Co-ordinate Repair of Pipeline, Facilities and Equipment, Unit NGS 290 Control Gas Odourisation and Unit NGS 320 Co-ordinate Construction, Laying and Testing of Gas Distribution Pipelines and the following Frontline Management III Competency Standards:
(BSXFM 1301 A) Manage Personal Work Priorities and Professional Development,
(BSXFM 1302 A) Provide Leadership in the Workplace,
(BSXFM 1303 A) Establish and Manage Effective Workplace Relationships and
(BSXFM 1308 A) Develop and Maintain a Safe Workplace and Environment

Knowledge and Skills
The Evidence Guide is a set of guidelines which assist in the development of assessment instruments/tools to assess the competency of workers in the Gas Industry. This requires evidence of consistent achievement of the workplace outcomes covered by the unit.
An employee working at this level is required to demonstrate an awareness of gas and its characteristics and properties; effectively operate tools and equipment within their capabilities and limitations; adhere to manufacturer's maintenance specifications; analyse and interpret test data; use test equipment; accurately interpret plans and drawings; communicate effectively with team members; accurately record and maintain relevant documentation and information