Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

PMASUP346 Mapping and Delivery Guide
Control corrosion

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency PMASUP346 - Control corrosion
Description
Employability Skills
Learning Outcomes and Application This unit of competency covers the skills and knowledge required to control corrosion in plant, equipment and/or pipelines (plant) by the use of chemical or biological controls.This unit of competency applies to operators who are required to monitor plant for signs of corrosion, monitor the concentration of inhibiting chemicals or similar, and maintain an appropriate dosing regime in order to control the rate of corrosion.This unit of competency applies to an individual working alone or as part of a team or group and working in liaison with other shift team members and the control room operator, as appropriate.Corrosion typically refers to any electrochemical process leading to the decay of metal. However, this competency may also be contextualised and applied to decay processes in non-metals.No licensing, legislative or certification requirements apply to this unit at the time of publication.
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.

The unit should be assessed holistically and the judgement of competence based on a holistic assessment of the evidence.

The collection of performance evidence:

should occur over a range of situations which include typical disruptions to normal, smooth operations

will typically include a supervisor/third-party report focusing on consistent performance and problem recognition and solving. A supervisor/third-party report must be prepared by someone who has a direct, relevant, current relationship with the person being assessed and who is in a position to form a judgement on workplace performance relevant to the unit of competency

must include the use of industrial type plant, appropriate tools, equipment and safety gear requiring demonstration of preparation, operation, completion and responding to problems

may use industry-based simulation for part of the unit particularly where safety, lack of opportunity or significant cost is an issue.

Assessment should occur in operational workplace situations. Where this is not possible, or where personal safety or environmental damage are limiting factors, assessment must occur in a sufficiently rigorous simulated environment reflecting realistic operational workplace conditions. This must cover all aspects of workplace performance, including environment, task skills, task management skills, contingency management skills and job role environment skills.

Assessment in a simulated environment should use evidence collected from one or more of:

walk-throughs

pilot plant operation

demonstration of skills

industry-based case studies/scenarios

‘what ifs’.

Knowledge evidence may be collected concurrently with performance evidence (provided a record is kept) or through an independent process, such as workbooks, written assessments or interviews (provided a record is kept).

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Conditions for assessment must include access to all tools, equipment, materials and documentation required, including relevant workplace procedures, product and manufacturing specifications associated with this unit.

The regulatory framework will be reflected in workplace policies and procedures and is not required to be independently assessed.

Foundation skills are integral to competent performance of the unit and should not be assessed separately.

Assessors must satisfy the assessor competency requirements that are in place at the time of the assessment as set by the VET regulator.

In addition, the assessor or anyone acting in subject matter expert role in assessment must demonstrate both technical competency and currency. If the assessor cannot demonstrate technical competency and currency they must assess with a subject matter expert who does meet these requirements.

Technical competence can be demonstrated through one or more of:

relevant VET or other qualification/Statement of Attainment

appropriate workplace experience undertaking the type of work being assessed under routine and non-routine conditions

appropriate workplace experience supervising/evaluating the type of work being assessed under routine and non-routine conditions

Currency can be demonstrated through one or more of:

being currently employed undertaking the type of work being assessed

being employed by the organisation undertaking the type of work being assessed and having maintained currency in accordance with that organisation’s policies and procedures

having consulted/had contact with an organisation undertaking the type of work being assessed within the last twelve months, the consultation/contact being related to assessment

conducting on-the-job training/assessments of the type of work being assessed

being an active member of a relevant professional body and participating in activities relevant to the assessment of this type of work.
Prerequisites/co-requisites
Competency Field Support
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities 		Slides
PPT 		Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Identify corrosion controls in use
  • Identify sites susceptible to corrosion on work area
  • Identify the causes and effects of corrosion at these sites
  • Identify the corrosion inhibitors used in work area
  • Determine hazards associated with corrosion and corrosion control
  • Control hazards associated with corrosion and corrosion control
  • Coordinate with appropriate personnel
       
Element: Dose corrosion inhibitor in accordance with procedures
  • Monitor indicators of rate of corrosion
  • Monitor inhibitor dosing equipment
  • Adjust rate of dosing
  • Monitor inhibitor stocks
  • Recognise situations requiring action
  • Take action, as required
       
Element: Test plant for corrosion in accordance with procedures
  • Identify corrosion testing methods used in work area
  • Complete testing activities as required by procedures
  • Examine test results and take action
       
Element: Isolate and de-isolate dosing plant
  • Isolate dosing plant
  • Make safe for required work
  • Check dosing plant is ready to be returned to service
  • De-isolate and prepare dosing plant for return to service
       


Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Identify corrosion controls in use

1.1

Identify sites susceptible to corrosion on work area

1.2

Identify the causes and effects of corrosion at these sites

1.3

Identify the corrosion inhibitors used in work area

1.4

Determine hazards associated with corrosion and corrosion control

1.5

Control hazards associated with corrosion and corrosion control

1.6

Coordinate with appropriate personnel

2

Dose corrosion inhibitor in accordance with procedures

2.1

Monitor indicators of rate of corrosion

2.2

Monitor inhibitor dosing equipment

2.3

Adjust rate of dosing

2.4

Monitor inhibitor stocks

2.5

Recognise situations requiring action

2.6

Take action, as required

3

Test plant for corrosion in accordance with procedures

3.1

Identify corrosion testing methods used in work area

3.2

Complete testing activities as required by procedures

3.3

Examine test results and take action

4

Isolate and de-isolate dosing plant

4.1

Isolate dosing plant

4.2

Make safe for required work

4.3

Check dosing plant is ready to be returned to service

4.4

De-isolate and prepare dosing plant for return to service

Evidence required to demonstrate competence in this unit must be relevant to and satisfy the requirements of the elements and performance criteria, and include the ability to:

identify corrosion and its causes and effects

monitor rate of corrosion

monitor and adjust rates of inhibitor dosing

undertake corrosion tests and interpret results

isolate and de-isolate equipment

recognise early warning signs of equipment/processes needing attention or with potential problems

identify hazards and risks and apply risk control procedures

communicate effectively with team/workgroup, supervisors and other personnel

complete forms and documentation.

Evidence must be provided that demonstrates knowledge of:

the galvanic series

electrochemical corrosion

types of corrosion/causes of anode formation

factors controlling the rate of corrosion

types of corrosion inhibitors used and their action

hazards associated with corrosion inhibitors and relevant hazard controls

costs and hazards of corrosion

principles of operation of dosing equipment

physics and chemistry relevant to the process unit and the materials processed

process parameters and limits (e.g. temperature, pressure, flow and pH)

hierarchy of control

relevant alarms and actions

plant process idiosyncrasies

all items on a schematic of the plant item and the function of each

types and causes of problems within operator's scope of skill level and responsibility.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Identify corrosion controls in use

1.1

Identify sites susceptible to corrosion on work area

1.2

Identify the causes and effects of corrosion at these sites

1.3

Identify the corrosion inhibitors used in work area

1.4

Determine hazards associated with corrosion and corrosion control

1.5

Control hazards associated with corrosion and corrosion control

1.6

Coordinate with appropriate personnel

2

Dose corrosion inhibitor in accordance with procedures

2.1

Monitor indicators of rate of corrosion

2.2

Monitor inhibitor dosing equipment

2.3

Adjust rate of dosing

2.4

Monitor inhibitor stocks

2.5

Recognise situations requiring action

2.6

Take action, as required

3

Test plant for corrosion in accordance with procedures

3.1

Identify corrosion testing methods used in work area

3.2

Complete testing activities as required by procedures

3.3

Examine test results and take action

4

Isolate and de-isolate dosing plant

4.1

Isolate dosing plant

4.2

Make safe for required work

4.3

Check dosing plant is ready to be returned to service

4.4

De-isolate and prepare dosing plant for return to service

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.

Regulatory framework

The latest version of all legislation, regulations, industry codes of practice and Australian/international standards, or the version specified by the local regulatory authority, must be used, and include one or more of the following:

legislative requirements, including work health and safety (WHS)

industry codes of practice and guidelines

environmental regulations and guidelines

Australian and other standards

licence and certification requirements

All operations to which this unit applies are subject to stringent health, safety and environment (HSE) requirements, which may be imposed through state/territory or federal legislation, and these must not be compromised at any time. Where there is an apparent conflict between performance criteria and HSE requirements, the HSE requirements take precedence.

Procedures

All operations must be performed in accordance with relevant procedures.

Procedures are written, verbal, visual, computer-based or in some other form, include one or more of the following:

emergency procedures

work instructions

standard operating procedures (SOPs)

safe work method statements (SWMS)

formulas/recipes

batch sheets

temporary instructions

any similar instructions provided for the smooth running of the plant

Hazards

Hazards include one or more of the following:

noise, rotational/reciprocating equipment or vibration

plant services (steam, condensate and cooling water)

hazardous products and materials

other hazards that might arise

Routine problems

Routine problems are predictable and have known solutions and include one or more of the following:

lifting equipment failures

fire and explosion

burns

atmospheric hazards

manual handling hazards

static electricity

Non-routine problems

Non-routine problems are unexpected problems, or variations of previous problems and must be resolved by applying operational knowledge to develop new solutions, either individually or in collaboration with relevant experts, to:

determine problems needing action

determine possible fault causes

develop solutions to problems which do not have a known solution

follow through items initiated until final resolution has occurred

report problems outside area of responsibility to designated person

Operational knowledge includes one or more of the following:

procedures

training

technical information, such as journals and engineering specifications

remembered experience

relevant knowledge obtained from appropriate people

Corrosion control system

This unit of competency includes all such items of equipment and unit operations which form part of the corrosion control system, including as appropriate to the facility:

dosing pumps

flow rate controllers

analytical instrumentation related to corrosion

head tanks

test coupons or similar

brushes

inspection devices

Work area

Work area refers to the systems or units the technician is responsible for. Depending on the organisation and context it might be a plant area, a well head or pipeline covering thousands of kilometres.

Corrosion inhibitors

Corrosion inhibitors include or more of the following:

anodic or cathodic inhibitors

film formers

oxygen scavengers

pH adjusters/buffers

biocides

additives and carriers, such as:

solvent base

surfactants

dispersants

demulsifiers

de-foamers

Inhibitor dosing

Inhibitor dosing includes one or both of the following:

continuous

batch injection

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Identify sites susceptible to corrosion on work area 
Identify the causes and effects of corrosion at these sites 
Identify the corrosion inhibitors used in work area 
Determine hazards associated with corrosion and corrosion control 
Control hazards associated with corrosion and corrosion control 
Coordinate with appropriate personnel 
Monitor indicators of rate of corrosion 
Monitor inhibitor dosing equipment 
Adjust rate of dosing 
Monitor inhibitor stocks 
Recognise situations requiring action 
Take action, as required 
Identify corrosion testing methods used in work area 
Complete testing activities as required by procedures 
Examine test results and take action 
Isolate dosing plant 
Make safe for required work 
Check dosing plant is ready to be returned to service 
De-isolate and prepare dosing plant for return to service 

Forms

Assessment Cover Sheet

PMASUP346 - Control corrosion
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

PMASUP346 - Control corrosion

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: