Required skills

diagnosing faults in liquid measuring instruments

installing and repairingliquid measuring instruments with a basic design

accessing interpreting and applying a range of documents for the verification 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

performing verification tests over extended durations in nonroutine and hazardous environments

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

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 tradersand 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 calculationsinvolving

fractions decimals ratios proportions and percentages

evaluation of formulae containing powers exponents and logarithms functions

use of scientific notation correct units and 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 and correlation coefficients

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

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

design major components and functions of liquid measuring instruments

licensing requirements for a verifier including

quality management system

licence conditions

maintenance of statutory records

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

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 verification documentation

organisational policy and procedures for verifying 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 one 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

install and repair liquid measuring instruments to meet statutory requirements

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

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

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 and remedial actions

review of verification 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

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

A service station operator of a large company owned site requests a servicing company to visit their site as he has noticed that one fuel dispenser has a faulty display and the service station appears to have inconsistent dip reading The verifier arrives and introduces himself and informs the owner that under their contract all fuel dispensers are due for checking The verifier completes a safety check AIP clearance form and asks about the location of the fuel return points The verifier then blocks the lane next to the fuel dispenser puts safety signs barricades and test measures in place and ensures that the work area is safeThe verifier repairs the faulty display and proceeds to test the fuel dispenser He visually checks the fuel dispenser against the Certificate of Approval and checks for any leaks noting any discrepancies on a verification report form He then tests the fuel dispenser as per the National Test Procedures noting results on the test report and returning dispensed fuel to the storage tanks in a safe manner The verifier finds the fuel dispenser is outside the maximum permissible error and adjusts the dispenser After repeating the National Test Procedure he finds the dispenser is within the maximum permissible error and then seals and marks the dispenser with his mark

The verifier then tests the other fuel dispensers onsite Some require adjustment before being verified and marked Another dispenser is within the maximum permissible error and does not require adjustment One dispenser cannot be adjusted within the maximum permissible error and the verifier removes the mark After all dispensers are tested the verifier completes the verification forms fuel usage form and AIP form The verifier informs the site manager that one dispenser cannot be used as it is noncompliant and issues a noncompliancy form The site manager locks the dispenser until repairs can be made The remaining forms are given to the site manager and the verifier departs

Prescribed performance criteria for instruments

Appropriate documentation

Certificates of Approval

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 may include: