Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria, and include demonstration of:
selecting, calibrating, using and maintaining appropriate reference standards in accordance with specified procedures on at least three (3) occasions
maintaining the integrity of reference standards by controlling the operating environment and ensuring that all storage, transport and handling is in accordance with organisational procedures and industry best practice
ensuring that the inspection, maintenance, calibration and documented status of reference standards are completed in accordance with organisational procedures
selecting appropriate reference standards for specific trade measurement activities after careful consideration of the activity’s scope, and expected outcomes and limitations, including the operating environment
validating reference standard suitability against the activity’s scope and expected outcomes in accordance with legislative requirements and organisational policy and procedures
accessing and accurately interpreting reference standard Certificates of Verification, information about tolerances and measurement reports
using the reference standard correctly, including conditioning and applying corrections, as required, to produce consistent and accurate measurements
assessing results of trade measurement activities and analysing any variances from the expected outcomes to identify any isolated or systemic problems linked to the reference standard or its use
using advanced communication and negotiation skills to:
explain the purpose of the trade measurement activities
access external equipment and resources to complete the activity
explain procedures and expected outcomes of activities to traders and managers
organise large reference standards to be dispatched ahead of visit to trader's premises
performing specified calculations involving:
fractions, decimals, ratios, proportions and percentages
scientific notation, correct units and the correct number of significant figures
interpretation of statistical quantities, such as mean, median, mode, range, variance and standard deviation
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 physical principles and concepts, including weight, mass, gravity, density, volume, length and area
metrological terms, including maximum permissible errors, maximum permissible variations, traceability and uncertainty
Australian legal units of measurement
organisations involved in legal metrology in Australia
hierarchy and classes of reference standards used in legal metrology
purpose of Certificates of Verification issued under the national measurement legislation and the information contained in them
National Measurement Institute (NMI) policy requirements and National Instrument Test Procedures and operating procedures for equipment and reference standards used in job role, including:
transport/storage specifications and procedures for test/specialised equipment and reference standards, and variations requiring approval
maintenance requirements for reference standards and test equipment, including when manufacturer's requirements are unavailable
procedures covering maintenance, recording and reporting faults and calibration
actions to be taken where legal traceability cannot be confirmed
actions to be taken if reference standards and test equipment are found to be defective
article measurement and measuring instrument test procedures
test conditions and possible environmental impacts on performance of reference standards and measuring instruments
key preparation/measurement steps in test method
calculation steps to give results in appropriate units and precision
maximum permissible errors for instruments under test and tolerances for reference standards
organisational safety procedures and requirements of applicable Commonwealth, state and territory work/occupational health and safety (WHS/OHS) legislation
basic first aid and site safety induction, if required.