Unit of competency details

MEM05003B - Perform soft soldering (Release 1)


Usage recommendation:
Is superseded by and equivalent to MEM05003 - Perform soft solderingSupersedes and is equivalent to MEM05003B Perform soft soldering 25/Jun/2019

ReleaseRelease date
1 1 (this release) 01/Dec/2005

Training packages that include this unit

Qualifications that include this unit

CodeSort Table listing Qualifications that include this unit by the Code columnTitleSort Table listing Qualifications that include this unit by the Title columnUsage RecommendationRelease
AUR10105 - Certificate I in AutomotiveCertificate I in AutomotiveSuperseded
AUR20408 - Certificate II in Automotive Electrical TechnologyCertificate II in Automotive Electrical TechnologySuperseded1-2 
AUR21011 - Certificate II in MotorsportCertificate II in MotorsportSuperseded1-2 
AUR30911 - Certificate III in MotorsportCertificate III in MotorsportSuperseded1-2 
AUR20811 - Certificate II in Outdoor Power EquipmentCertificate II in Outdoor Power EquipmentSuperseded1-2 
LMF50311 - Diploma of Stained Glass and LeadlightingDiploma of Stained Glass and LeadlightingSuperseded1-2 
MEM30405 - Certificate III in Engineering - Electrical/Electronic TradeCertificate III in Engineering - Electrical/Electronic TradeSuperseded1-3 
AUR20611 - Certificate II in MarineCertificate II in MarineSuperseded1-2 
MSF50118 - Diploma of Stained Glass and LeadlightingDiploma of Stained Glass and LeadlightingDeleted
AUR30711 - Certificate III in Outdoor Power EquipmentCertificate III in Outdoor Power EquipmentSuperseded1-2 
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SchemeCodeClassification value
ASCED Module/Unit of Competency Field of Education Identifier 030711 Boilermaking And Welding  

Classification history

SchemeCodeClassification valueStart dateEnd date
ASCED Module/Unit of Competency Field of Education Identifier 030711 Boilermaking And Welding  31/Aug/2006 
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Modification History

Not Applicable

Unit Descriptor

Unit descriptor 

This unit applies to performing soft soldering applications of ferrous and non-ferrous materials, using straightforward techniques, where heat damage to components or finish of soldered joint is not critical.

Application of the Unit

Application of the unit 

All work is undertaken to predetermined standards of quality, safety and procedures.

Techniques of applying soft solder may include the use of soldering irons (all types) and direct flame or other heating devices. Preparation of materials includes cleaning, deburring, twisting of conductors and fluxing.

Depending on the actual soldering job, hand and power tools and drawing and interpretation skills may be required. These are covered by units MEM18001C (Use hand tools), MEM18002B (Use power tools/hand held operations) and MEM12023A (Perform engineering measurements).

This unit should not be selected if Unit MEM05001B (Perform manual soldering/desoldering - electrical/electronic components) or Unit MEM10002B (Terminate and connect electrical wiring) has already been selected.

Band :

Unit Weight :

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 job requirements

1.1. Soldering requirements are identified and correctly understood from job sheets or instructions.

2. Undertake soft soldering

2.1. Tools, equipment and consumables appropriate to the task are assembled and prepared for use as required.

2.2. Materials to be soldered are prepared, arranged and checked as required, to ensure solder joint meets specifications.

2.3. Correct techniques are used to apply soft solder to standard operating procedures.

2.4. Solder joint is cleaned and checked for conformance to specifications using standard operating procedures.

Required Skills and Knowledge


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

Required skills 

Look for evidence that confirms skills in:

  • using soldering irons
  • using direct flame and other heating devices
  • reading and interpreting routine information on written job instructions, specifications and standard operating procedures
  • following oral instruction

Required knowledge 

Look for evidence that confirms knowledge of:

  • the effect of material to be soft soldered on the selection of consumables
  • the reasons for preparing surfaces prior to soldering
  • the procedures for rectifying defects in soldered joints
  • use and application of personal protective equipment for soft soldering
  • safe work practices and procedures

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.

Overview of assessment 

A person who demonstrates competency in this unit must be able to perform soft soldering.

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

Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts.

Context of and specific resources for assessment 

This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is the candidate is not in productive work, then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team. The assessment environment should not disadvantage the candidate.

This unit could be assessed in conjunction with any other units addressing the safety, quality, communication materials handling, recording and reporting associated with performing soft soldering or other units requiring the exercise of the skills and knowledge covered by this unit.

Method of assessment 

Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways including direct observation, supervisor's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency. The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials.

Guidance information for assessment 

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.


Soldering irons (all types) and direct flame or other heating devices


Ferrous and non-ferrous

Unit Sector(s)

Unit sector 

Co-requisite units

Co-requisite units 

Competency field

Competency field