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. |
Scope of work must include: | interpreting plans and specificationssizing and documenting layout of industrial gas systems for applications, including:characteristicscompatibilitydimensionslocationpatternsquantitiessizessurfacestypes of product and service. |
Design requirements must include: | architectural specificationsbuilder specificationsowner requirementsspecialist use applications. |
Cost-benefit analysis: | compares the range of suitable materials and system choices available to enable cost-effective choices to be made without compromising integrity of project. |
Statutory, regulatory requirements, codes and Australian and New Zealand standards include: | Acts, regulations and local and state government policies, including group and strata titlingAS/NZS1596 The storage and handling of LP gasAS5601 (AG601) Gas installationsGas Act 1965 and amendmentsgas regulationsNational Construction Codeother Australian and New Zealand standards. |
Manufacturer requirements include: | material specificationspump tablessizing tablestechnical and trade manuals. |
Desktop study includes collection and interpretation of existing data for design purposes in: | architectural and building planscouncil plansdeveloper plansother documents, including:formsapplicationsother reports as available. |
Performance requirements include: | pipe grades, cover, flow conditions and discharge requirements, established using Australian and New Zealand standards and local authority plans. |
Layout of pipework systems must: | have principles of economy, serviceability, durability and fit for use appliednot unduly affect building integrity and aesthetic appeal. |
Fittings and valves include: | metersregulatorsrelief valves. |
Valve trains must include: | analysing the operation of valve componentssizing and selecting components using manufacturer data. |
System calculations must include: | calculation of explosion reliefcalculation of purge timesdetermination of flow and consumptioninterpretation of design charts and tablespipe sizing calculations. |
Materials include: | copper (Cu)fittings and appliances, including measures to prevent the spread of firehigh density polyethylene (HDPE). |
Jointing methods include: | brazinggluingmechanical jointssolvent cement weldingthreading. |
Pipe fixings include: | anchorsbracket spacingcorrosion protectionhanging bracketsmaterial requirementssaddleswall and ceiling brackets. |
Installation requirements include: | clippinginstallation detailsjointing requirementslevel of workmanship. |
Plans include: | axonometricscross-sectionsdetailselevationsisometricsschematics, which may be produced using:computer generationdrawing equipmentsections. |
Specification includes: | clippingdetails of specialised componentsjointingmanufacturer requirementsmaterialsvalvesworkmanship. |
Testing includes: | air pressure testgas leak testquality assurance (QA) audit. |
Commissioning schedule must include: | flow testingleak checkvaporisation rate check. |
Operation and maintenance manual may include: | leak detectionregular maintenance requirementssafety inspectionyearly inspection. |