Required skills

accessing interpreting and applying a range of documents for the inspection of liquid measuring instruments including

national measurement legislation

intermediate National Test Procedures

Certificates of Approval

National Measurement Institute inspection policy

Australian Standards

industry codes of practice

correction tables for volume density and pressure for a range of liquids

national and international design rules

pattern approval documents

accessing and interpreting Certificates of Verification for a range of reference standards

performing inspections over extended durations in nonroutine and hazardous environments

using advanced communication and negotiation skills to

explain purpose of the verification

inform traders of noncompliances and consequences of failing to rectify

access external equipment and resources to complete the verification

explain verification procedures and outcomes to traders verifiers and managers

accessing transporting setting up validating using and maintaining a broad range of test equipment and reference standards

identifying and evaluating environmental factors that may impact on performance of liquid measuring instruments

organising large equipment to be dispatched ahead of verification visit

conducting tests and recording results with close attention to detail and accuracy

performing calculations involving

fractions decimals ratios proportions and percentages

evaluation of formulae containing powers exponents and logarithms functions

use of scientific notation correct units correct number of significant figures

calculation of uncertainties

preparation and interpretation of linear semilog and loglog graphs

interpretation of statistical quantities such as mean median mode range variance and standard deviation

determination of regression line equations correlation coefficients

preparation and interpretation of more complex control charts and frequency distribution plots

analysing performance results over a broad range of operating conditions

identifying noncompliances with national measurement legislation relating to instrument or verifier performance and initiate appropriate enforcement action including warning infringement notice undertaking injunction and prosecution

identifying potential trading practice noncompliance with national measurement legislation and initiating an appropriate inspection strategy

planning complex tasks

developingimplementing an efficient verification strategy that minimises disruption to traders the public technicians employees colleagues and suppliers

demonstrating professionalism and maintaining the rights of the trader at all times

solving unexpected problems and nonroutine issues

working safely which may include applying basic first aid confined space entry working with hazardous materials working safely in hazardous environments working with heavy machinery Australian Institute of Petroleum AIP cold work clearance permit safety induction and working at heights

Required knowledge

general chemical and physical principles and concepts including

physical states solid liquid gas weight mass gravity and density

pressure pressure differential backpressure and head pressure

fluid flow

flashpoint boiling point and ice point

viscosity

temperature effects and coefficients of expansion

basic knowledge of the design application and function of components used in liquid measuring instruments

knowledge of the operating procedures across a range of environments including laboratories retail commercial office manufacturing industrial mining construction medical chemical and petroleum

knowledge of metrological terms and terminology specific to liquid measuring instruments such as

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

linearisation

gas elimination

national measurement legislation applicable to liquid measuring instruments

detailed knowledge of National Test Procedures and operating procedures for equipment and reference standards used in job role including

purpose of test

test conditions and possible environmental impacts on performance of the instrument

key preparationmeasurement steps in test method

calculation steps to give results in appropriate units and precision

maximum permissible errors for liquid measuring instruments under inspection

procedures for completing inspection documentation

organisational policy and procedures for inspecting instruments

safety principles and procedures relevant to instruments

basic first aid and site safety induction if required

The Evidence Guide provides advice on assessment and must be read in conjunction with the performance criteria required skills and knowledge range statement and the Assessment Guidelines for the Training Package

Overview of assessment

Competency must be demonstrated in the ability to perform consistently at the required standard for any class of liquid measuring instrument listed in the Range Statement

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

Assessors should ensure that candidates can

identify access and apply test procedures

identify and use suitable reference standards

evaluate and adjust the impact of the operating environment on the performance of the instrument

analyse test results to determine the instruments suitability for verification trade use

identify the scope of a verifier performance audit and assess results with expected outcomes

audit the performance of verifiers of liquid measuring instruments

identify and implement additional inspection strategies for noninstrument related breaches of national measurement legislation

recognise and act on noncompliance

maintain the security and confidentiality of data in accordance with organisational and regulatory requirements

report results in the required formats and expected timeframe

Context of and specific resources for assessment

This unit of competency is to be assessed in the workplace or simulated workplace environment

This unit of competency may be assessed with

MSATMREFA Use and maintain reference standards

MSATMREF301A Use and maintain reference standards.

Resources may include

liquid measuring instruments using volume measures test equipment and reference standards

safety equipment

computer and relevant software andor organisation information management system

Certificates of Approval for instruments

relevant legislative and organisational procedures

Method of assessment

The following assessment methods are suggested

questions to assess understanding of relevant procedures licensing requirements trader obligations and remedial actions

review of inspection reports and verifier performance audit reports prepared by the candidate

feedback from supervisors and peers regarding the candidates ability to verify the performance of instruments in accordance with legislative and organisational procedures

observation of the candidate conducting an inspection

In all cases practical assessment should be supported by questions to assess underpinning knowledge and those aspects of competency which are difficult to assess directly Questioning techniques should suit the language and literacy levels of the candidate

This competency in practice

Industry representatives have provided the case studies below to illustrate the practical application of this unit of competency and to show its relevance in a workplace setting

An inspector arrives unannounced at a medium size service station to check the performance of a number of fuel dispensers After introducing himherself to the site manager the inspector explains the purpose of the visit and asks for the location of the fuel return points The inspector performs a safety check completes an AIP form places safety barriers around the work area and then prepares the test equipment and reference standards There are seven fuel dispensers with a total of hoses

The inspector tests a selection of dispensers visually The National Test Procedure requires the inspector to dispense fuel into L reference measures and then return the fuel to storage Approximately litres are dispensed per hose The inspector finds a number of noncompliances on site Two hoses are dispensing fuel outside the allowable maximum permissible error one dispenser has a faulty segment in its display and the lights are not working the diesel dispenser failed the air elimination test and three hoses are badly worn The inspector removes the verification mark from all noncompliant dispensers

While testing the fuel dispenser the inspector notices a number of items displayed for sale outside the office On closer inspection some of the prepackaged items are found not to be marked with a measurement statement

The inspector meets with the site manager to inform him of the noncompliant dispensers Heshe advises the manager not to use any unmarked dispensers explains how they can be rectified and issues non compliance notices They also discuss the noncompliant prepackaged articles The inspector takes details for further action completes the AIP form and fuel usage report and then departs

Prescribed performance criteria for instruments

Appropriate documentation

Certificates of Approval

Enforcement action

Test equipment

Legislation

National Measurement Institute policy

National Test Procedures for liquid measuring instruments

OHS and environmental management requirements

Operating environmental impacts

Records

Liquid measuring instruments