Dismantle components of steel structure fabrications to meet specification

Business Sectors (Suites): Fabricating Steel Structures (Plating)
Developed by: ECITB
Approved on: 14 Dec 2020


This standard is about the dismantling of steel structure fabrications in engineering construction.

You will need to be able to ensure that the systems are in a safe condition for work activities before removing. Once removed you must be able to check the condition of the components, identify and record, where required, those that will require replacing whilst adhering to adhere to health, safety and environmental legislation, regulations and safe working practices.

In the context of this standard, your responsibility is to interpret and work within given specifications, selecting techniques and making variations as needed to achieve the best possible result. In some cases, you may still be required to refer to others for final authorisation, even though you remain responsible for identifying and implementing decisions.

This standard is for
This standard is for Platers.

Performance criteria

You must be able to:

1. work safely at all times, comply with health and safety and other relevant legislation, regulations, guidelines and local rules or procedures 2. ensure that the work environment, material and equipment are suitably prepared for the activities to be undertaken 3. follow the relevant engineering drawings, specifications and quality standards 4. establish what is being dismantled and mark steel structure fabrications for reassembly 5. ensure isolations and disconnections are in line with procedures 6. ensure that any stored energy or substances are released safely and correctly in accordance with health, safety and environmental requirements 7. ensure appropriate temporary support systems are put in place for the task in hand 8. dismantle steel structure fabrications, as specified, using the correct tools, equipment and techniques 9. take precautions to ensure the steel structure fabrications are protected from the environment and potential damage 10. determine the condition of the removed components against specification: 1. identify and record any that need replacing 2. dispose of any that are now redundant 3. correctly record, label and store those for reuse 11. reinstate the work area 12. deal promptly and effectively with problems within your control and report those that have been and those that cannot be solved

Knowledge and Understanding

You need to know and understand:

  1. relevant
    legislative, regulatory and local requirements or procedures and safe working
    practices including your responsibilities with regards to reporting lines and
  2. preparation and reinstatement requirements in respect of
    the work area, components removed, material, and equipment, and the possible
    consequences of incorrect actions in these areas 
  3. relevant engineering drawings, related specifications and
    quality standards
  4. how to ensure any stored
    energy or substances are controlled and discharged safely in accordance with
    health, safety and environmental requirements
  5. methods
    and techniques for dismantling steel structure fabrications including:

    1. how to ensure relevant engineering support systems are put in place
    2. component removal and dismantling
  6. how to check the
    condition of the removed pipework found and what to do if defects are found

  7. how
    to label and store steel structure fabrications components for reuse 
  8. techniques for foreign material exclusion and the
    importance of this
  9. the correct disposal of waste, redundant and obsolete
  10. reporting documentation and control procedures
  11. tool and equipment control:  the correct use of
    relevant tools and equipment and your individual responsibility for the use,
    care and security of those you use


Work environment
Typical work environments could include:
• engineering construction sites
• controlled operations
• offshore installations
• maintenance sites
• nuclear sites
• repair sites

 Work environments may be open or restricted spaces: 
• at height
• confined spaces
• control rooms
• controlled operational and offshore installations
• designated work areas
• explosive atmospheres
• existing plants and structures
• fabrication workshops
• in plant rooms
• inside structures, system and plant
• on access structures (scaffold)
• on open structures
• onshore and offshore installations
• shafts
• shipyards
• tunnels

Reinstate the work area
This term could include:
•returning the work area to a safe condition
• removal of barriers
• sweeping up
• correctly disposing of waste materials
• storing of re-usable materials, consumables and equipment in accordance with appropriate procedures
• completing all necessary documentation

Scope Performance

Scope Knowledge





Links To Other NOS

External Links

Version Number


Indicative Review Date

14 Dec 2024





Originating Organisation

Engineering Construction Industry Training Board

Original URN


Relevant Occupations


SOC Code



plating; engineering drawings; specifications; tools; engineering; construction; plating; Installing plating components, steel structures; fabrication