TS EN 17975
Maintenance - Risk control processes of energies and fluids risks in maintenance activities - Guidance
This document provides users with guidance that help manage risks related to energies & fluids during maintenance activities on items when in use. It is the responsibility of each employer, according to the terms commonly used in the company, to: – Set out the correlation between the processes described in this document and standard practices, – Define the roles and responsibilities of the people involved in the energies & fluids lockout process. This document refers to concepts, definitions, rules, recommendations, and best practices taken from national and international documents (lockout/tagout – “administrative lockout” – Lockout/Tagout (LOTO) – Safe isolation) that cover activities to ensure the safety of workers with respect to energies & fluids. This document deals with the prevention of energy & fluid (e.g. powders, gases, liquids, etc.) related risks; it is noted that some are covered by specific regulations or standards, such as the electrical risk. Environmental issues related to energies & fluids are not in the scope of this document. Danger associated with energies & fluids can be direct (e.g. contact, absorption, etc.) or indirect by reaction (e.g. mixing, heating, etc.). The scope includes all fluids because they can be intrinsically dangerous or become dangerous. The recommendations given in this document have been drawn up with a view to ensure the safety and health of workers around hazardous energies & fluids, and situations when they are conducting actions related to maintenance, settings or changing formats, regardless of the type of activity. The recommendations relate to activities carried out on items. They are applied before, during and after the operation to: – The energies & fluids supplied, contained, transported, or released by items, products, – Risks related to the presence of hazardous energies & fluids for the worker and the surrounding personal. This document is a methodological guideline within the maintenance standards. NOTE Particular cases such as risks of lack of presence of vital elements for the worker (e.g. breathable air) are in the scope but will not be detailed.
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About This Item
TS EN 17975 is a methodological guidance standard for controlling risks from energies and fluids during maintenance activities. Its focus is the safe management of hazardous energies and fluids when work is performed on items that are in use, including maintenance, adjustment and format-change operations that can expose workers to unexpected release or activation.
In general technical terms, energy and fluid hazards can arise from many sources: electrical energy, pressure, moving parts, temperature, stored energy, gases, liquids or powders. These hazards may act directly, through contact or exposure, or indirectly, for example through mixing, heating, release or unexpected movement. The document draws on concepts used in national and international practices such as lockout/tagout, administrative lockout and safe isolation, while aiming to adapt those ideas to maintenance work in real operating environments.
How the guidance frames maintenance risk control
The document provides a process-oriented approach to preventing risks related to energies and fluids and to reducing the impact on workers and nearby persons. It states that each employer is responsible for defining how the processes described in the document relate to company practice and for assigning roles and responsibilities within the energies and fluids lockout process. It also notes that some subjects may already be addressed by specific regulations or standards, such as electrical risk provisions.
Why fluids are treated as a broad technical category
The scope covers all fluids because they may be inherently hazardous or become hazardous through interaction with other substances or processes. This includes powders, gases and liquids, reflecting the fact that the risk is not limited to conventional pressure systems alone. Environmental issues related to energies and fluids are explicitly outside the scope, so the document remains centred on worker safety and health during maintenance-related tasks.
- Addresses general risk control for maintenance, adjustment and format-change tasks.
- Applies to work performed on items that are in use.
- Covers hazards from supplied, contained, transported or released energies and fluids.
- Uses established safety-isolation concepts such as lockout/tagout and safe isolation as technical reference points.
- Excludes environmental aspects from its scope.
- Publication Date: 14.07.2025
- Standard Status: U (Yürürlükteki Standard/Standard)
- Publisher: TSE
- Document Language: en
- ICS Classification: 03.080.10 Endüstriyel Hizmetler ; 13.100 İş Güvenliği,Endüstriyel Hijyen
- Pages: 101
- Source Standard: EN 17975:2025
- International Equivalents: EN 17975-EQV
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