Unit of competency details

LMFFL2104A - Prepare concrete sub-floors using wet cleaning methods (Release 1)


ReleaseStatusRelease date
1 1 (this release)Current 11/May/2009

Usage recommendation:
Supersedes and is equivalent to LMFFC2005A - Prepare monolithic sub-floorPrepare concrete sub-floors using wet cleaning methods 12/May/2009
Is superseded by and equivalent to MSFFL2008 - Prepare concrete sub-floors using wet cleaning methodsSupersedes and is equivalent to LMFFL2104A Prepare concrete sub-floors using wet cleaning methods 09/Dec/2013

Training packages that include this unit


SchemeCodeClassification value
ASCED Module/Unit of Competency Field of Education Identifier 040313 Ceiling, Wall And Floor Fixing  

Classification history

SchemeCodeClassification valueStart dateEnd date
ASCED Module/Unit of Competency Field of Education Identifier 040313 Ceiling, Wall And Floor Fixing  28/Apr/2009 
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Modification History

Not applicable.

Unit Descriptor

Unit descriptor 

This unit covers the competency to wet clean concrete sub-floors using high and low pressure water cleaning applications relating to sub-floor preparation.

Application of the Unit

Application of the unit 

This unit supports the attainment of skills and knowledge required for competent workplace performance in the wide variety of sub-floor preparation operations. The competency applies to an on site environment and involves application of skills and knowledge at a sub-trade worker level. These skills and knowledge are to be used within the scope of the individual's job and authority.

Licensing/Regulatory Information

Not applicable.


Prerequisite units 


Employability Skills Information

Employability skills 

This unit contains employability skills.

Elements and Performance Criteria Pre-Content

Elements describe the essential outcomes of a unit of competency.

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the required skills and knowledge section and the range statement. Assessment of performance is to be consistent with the evidence guide.

Elements and Performance Criteria



1. Identify wet cleaning operations

1.1. Applicable legislative , OHS  and organisational  requirements relevant to the application of wet cleaning methods , are verified and complied with

1.2. Types of wet cleaning equipment  and their functions are identified from relevant information sources 

1.3. Sources of power supply  are recognised

2. Select wet cleaning method

2.1. Wet cleaning method, equipment and attachments  are selected consistent with the needs of the job

2.2. Wet cleaning equipment is checked for serviceability and safety and any faults  are corrected or processed for repair

2.3. Sequence of work is planned to ensure efficiency and quality of sub-floor cleaning

3. Prepare sub-floor for cleaning

3.1. Appropriate personal protective equipment  is selected, correctly fitted and used

3.2. Fittings and fixtures  are removed from the sub-floor

3.3. Sub-floor is cleared of loose debris and dirt and cleaned

3.4. A safe flooring technology work environment is established and maintained

4. Clean the floor

4.1. The start point is established and work plan implemented

4.2. Perimeter is cleaned using appropriate method and equipments.

4.3. Main area is cleaned to the required standard  using the most appropriate available equipment in accordance with the manufacturer specification

4.4. Floor area is inspected and reworked as required

5. Clean up work area and tools

5.1. All tools are cleaned, maintained and stored

5.2. Equipment is cleaned, maintained and stored

5.3. Work area is cleared and waste removed

5.4. Workplace documentation is completed

Required Skills and Knowledge


This section describes the skills and knowledge required for this unit.

Required skills 

  • communicate ideas and information to enable confirmation of work requirements and specifications and the reporting of faults and problems
  • collect and understand information related to the use of wet cleaning methods and the maintenance of high and low water pressure equipment
  • work with others and in a team by recognising dependencies and using cooperative approaches to optimise work flow and productivity
  • use pre-checking and inspection techniques to anticipate problems associated with wet cleaning to avoid rework and wastage
  • recognise and respond to circumstances outside instructions or personal competence
  • plan and organize activities including the preparation and layout of the worksite and the obtaining of tools
  • use mathematical ideas and techniques to correctly complete measurements and estimate other material requirements
  • clarify and confirm work instructions
  • plan work within given task parameters
  • accept responsibility for given tasks
  • set, monitor and satisfy personal work goals
  • satisfy the competency requirements for the job
  • maintain current knowledge of:
  • tools and materials
  • installation techniques
  • seek learning opportunities
  • use workplace technology related to the use of wet cleaning methods and operator maintenance of equipment and associated materials

Required knowledge 

  • State or Territory OHS legislation, regulations, standards and codes of practice relevant to the use of wet cleaning methods
  • Standards including AS/NZS 2455 and AS 1884 (1985)
  • organisational and site standards, requirements, policies and procedures for the use of wet cleaning methods
  • types and characteristics of high and low water pressure including requirements for their safe use, operation and maintenance
  • high and low water pressure equipment attachments, their uses, limitations and maintenance requirements
  • environmental protection requirements
  • established communication channels and protocols
  • problem identification and resolution

Evidence Guide


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.

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

  • Comply with legislation, regulations, standards, codes of practice and established safe practices and procedures for operating and maintaining wet cleaning equipment
  • Apply safe handling practices for equipment, products and materials
  • Adopt and carry out correct procedures prior to and during the application of each of the following wet cleaning methods:
  • high and low water pressure cleaning
  • detergent cleaning
  • acid etching
  • Apply ventilation standards
  • Follow work instructions, operating procedures and inspection practices to:
  • prevent damage to goods, tools, equipment or products
  • minimise the risk of injury to self or others
  • Complete operator maintenance on wet cleaning high and low water pressure equipment
  • Work effectively with others
  • Modify activities to cater for variations in workplace contexts and environment

Context of , and specific resources for assessment 

  • The application of competency is to be assessed in the workplace or realistically simulated workplace
  • Assessment is to occur under standard and authorised work practices, safety requirements and environmental constraints
  • Assessment of essential underpinning knowledge, other than confirmatory questions, will usually be conducted in an off-site context
  • Assessment is to comply with relevant regulatory or Australian Standards requirements
  • The following resources should be made available:
  • a realistic cleaning requirement
  • workplace location or simulated workplace
  • access to high and low pressure wet cleaning equipment.
  • access to manufacturer/user instructions and/or manuals

Method of assessment 

Assessment must satisfy the endorsed assessment guidelines of the Furnishing Industry Training Package

Assessment methods must confirm consistency and accuracy of performance (over time and in a range of workplace relevant contexts) together with application of underpinning knowledge

Assessment methods must be by direct observation of tasks and include questioning on underpinning knowledge to ensure its correct interpretation and application

Assessment may be applied under project related conditions (real or simulated) and require evidence of process

Assessment must confirm a reasonable inference that competency is able not only to be satisfied under the particular circumstance, but is able to be transferred to other circumstances

Assessment may be in conjunction with assessment of other related units of competency

Range Statement


The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Legislative requirements 

  • are to be in accordance with applicable legislation from all levels of government that affect organisational operation. Requirements may include but not be limited to award and enterprise agreements, industrial relations, Australian Standards, confidentiality and privacy, OHS, the environment, equal opportunity, anti-discrimination, relevant industry codes of practice, duty of care and heritage

OHS requirements 

  • are to be in accordance with Commonwealth, State or Territory legislation and regulations, organisational safety policies and procedures. Requirements may include but not be limited to the use of personal protective equipment and clothing, fire fighting equipment, First Aid equipment, hazard and risk control and elimination, control of hazardous materials and substances, manual handling including lifting and carrying

Organisational requirements 

  • may include but are not limited to legal, organisational and site guidelines, policies and procedures relating to own role and responsibility, quality assurance, procedural manuals, quality and continuous improvement processes and standards, OHS, emergency and evacuation, ethical standards, recording and reporting, access and equity principles and practices, equipment use, maintenance and storage, environmental management (waste disposal, recycling and re-use guidelines)

Wet cleaning methods 

  • may include high and low pressure water-hosing, detergent cleaning and acid etching

Types of wet cleaning equipment 

  • may include but are not limited to low pressure sprayer, booster pump, air compressor, hand held lance, plastic sprinkling can, mop, stiff broom, floor scrubber, disc machine equipment with abrasive bristle brushes, power washer, suitable nozzle tips, pressure rated hoses, wet/dry vacuum, squeegee, runoff protection.

Relevant information sources 

  • Manufacturer specifications and operational procedures for wet cleaning high and low water pressure, detergent cleaning and acid etching equipment
  • Workplace procedures relating to ohs, tool handling and operation, reporting and communication
  • Work instructions, including job sheets, plans, drawings and designs

Sources of power supply 

  • may be single or 3-phase
  • propane


  • are to include wet/dry vacuum attachment suitable nozzle tips, run off protection

Fault reporting 

  • is to cover any faults in the operation of wet cleaning equipment
  • reporting may be verbal or written

Personal protective equipment 

  • is to include that prescribed under legislation, regulation and enterprise policies and practices

Fittings and fixtures 

  • include nails, door stops, gripper strips, metal mouldings and debris

Work sequence 

  • is likely to cover inspect, select equipment and accessories, clean sub-floor, wet cleaning, remove standing water, dispose of solid debris, slurry, and rework


  • AS/NZS 2455 and AS 1884 (1985)

Unit Sector(s)

Unit sector 

Flooring Technology

Competency field

Competency field 

Floor Preparation

Co-requisite units

Co-requisite units 

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