Evidence of competence in this unit must satisfy all of the requirements of the elements and performance criteria, and include demonstration of:
completing initial verification testing of at least three (3) instruments from one (1) or more of the following classes of liquid measuring instruments:
fuel dispensers other than liquid petroleum gas (LPG) dispensers
milk flowmeters
accessing and correctly interpreting documentation required for inspections, evaluation of liquid measuring instruments and verifier audits
ensuring test equipment and reference standards are fit for purpose in accordance with applicable legislation and organisational procedures
planning, preparing for and safely conducting inspections to maximise outcomes and minimise disruption to the public and trader
checking compliance and evaluating the performance of liquid measuring instruments using appropriate Certificate of Approval, National Measurement Institute (NMI) policy and National Instrument Test Procedures, and adjusting for any impact of the operating environment
reliably determining if liquid measuring instruments are suitable for trade use in accordance with legislative requirements
conducting at least two (2) verifier instrument audits to assess the performance of verifiers who test and mark liquid measuring instruments for trade use
assessing verifier performance against expected outcomes and analysing any variances to identify isolated or systemic problems
identifying potential non-compliance of trading practices (applicable to instruments) with national measurement legislation and initiating an efficient inspection strategy that has a limited impact on others
recognising and acting on non-compliance of liquid measuring instrument or verifier performance and/or trading practices with national measurement legislation and initiating appropriate enforcement action
demonstrating professionalism and respecting the rights of the trader at all times
using advanced communication and negotiation skills to:
explain the purpose of inspection
inform traders of non-compliances and consequences of failing to rectify them
access external equipment and resources to complete the inspection
explain inspection procedures and outcomes to traders, verifiers and managers
performing specified calculations involving:
fractions, decimals, ratios, proportions and percentages
scientific notation, correct units and the correct number of significant figures, calculation of uncertainties
evaluation of formulae containing powers, exponents and logarithms functions
preparation and interpretation of linear graphs
maintaining the security and confidentiality of data in accordance with organisational and regulatory requirements
reporting results in the required formats and expected timeframe
working safely.
Must provide evidence that demonstrates knowledge of:
general science principles and concepts, including:
physical states (solid, liquid, gas), weight, mass, gravity and density
pressure, pressure differential, backpressure and head pressure, fluid flow and viscosity
temperature effects and coefficients of expansion, flashpoint, boiling point and ice point
metrological terms and terminology specific to liquid measuring instruments, including maximum permissible errors, maximum permissible difference and maximum permissible variation, traceability, repeatability, uncertainty, error of measurement and error of indication, meter creep, hose dilation, temperature correction, linearization and gas elimination
basic details of the design, application and function of components used in liquid measuring instruments
national measurement legislation applicable to liquid measuring instruments
safe work method statements (SWMS) for a range of trading environments, such as laboratories, retail, commercial, office, manufacturing, industrial, mining, construction, medical, chemical and petroleum
NMI policy requirements, including test procedure variations between a verification, in-service or audit inspection, bulletins, instructions and determinations
National Instrument Test Procedures and operating procedures for equipment and reference standards used in job role, including:
test conditions and possible environmental impacts on performance of the instrument
key preparation/measurement steps in test method
calculation steps to give results in appropriate units and precision
maximum permissible errors for liquid measuring instruments under inspection
safety principles and procedures relevant to liquid measuring instruments
organisational policy and procedures for inspecting liquid measuring instruments including completing inspection documentation
organisational safety procedures and requirements of applicable Commonwealth, state and territory work/occupational health and safety (WHS/OHS) legislation.