Do I Need a DSEAR Assessment?

Ensuring workplace safety involves more than visible hazards. Many hidden risks, such as potentially explosive atmospheres caused by flammable substances, require specialised assessments.

The Dangerous Substances and Explosive Atmospheres Regulations (DSEAR) exist to protect workers and businesses from the dangers associated with explosion, thermal runaway or spontaneous combustion.

Our guide will help you understand DSEAR, whether your business requires an assessment, and how to stay compliant.

What is a DSEAR Risk Assessment?

A DSEAR Risk Assessment is a systematic review of workplaces that store, handle, or use dangerous substances that could pose an explosion risk. The assessment ensures compliance with strict safety regulations designed to minimise hazards and protect employees from potentially catastrophic incidents.

Does My Business Require a DSEAR Risk Assessment?

If your workplace has any of the following dangerous substances, a DSEAR Risk Assessment must be carried out:

• Solvents, paints, and varnishes
• Flammable gases
• Dusts from machining, sanding, or foodstuffs
• Pressurised gases
• Substances corrosive to metal
• Activities involving spraying, grinding or welding

A number of other processes, such as spraying, grinding or welding activities, battery charging areas (particularly lithium ion batteries) trigger the need for a DSEAR Risk Assessment – if you are unsure, please just ask our team for further advice.

A business must also appoint a duty holder responsible for managing and implementing DSEAR compliance. Our team can take on this role, ensuring full compliance and peace of mind, or we provide specialised DSEAR training courses.

Does Diesel Need to Be Included in a DSEAR Risk Assessment?

Yes. Diesel was reclassified as a flammable liquid in 2008 and again in 2016, meaning it falls under DSEAR regulations. If your business handles or stores diesel, including it in your assessment is crucial.

What Happens During a DSEAR Risk Assessment?

A DSEAR Assessment conducted by our specialist consultants includes:

1. Site Visit & Consultation – Our suppliers meet with key team members and conduct a full site walkaround.
2. Review of Hazardous Substances – This includes examining flammable liquids, vapours, dust, and fumes.
3. Assessment of Explosive Atmospheres – Identifying areas where gas, mist, or dust could ignite or explode.
4. Hazardous Area Classification – Establishing zoning plans for explosive gases, vapours, and dust.
5. Implementation Support & Training – We provide tailored guidance, training, and written procedures to help businesses remain compliant.

What Training is Available?

Our specialist training partners run the following courses for all different levels of responsibility and involvement within the DSEAR process.

• Employee DSEAR Awareness
• Line Manager and Responsible Person Training - Stallard Kane
• DSEAR Coordinator & Responsible Person Training: Fundamentals of DSEAR Risk Assessment, Arrangements & Inspection- Ensuring Implementation of Effective DSEAR Compliance.

There are 2 spaces remaining on their upcoming DSEAR Co-ordinator course on the 21st & 22nd May. Contact our Training team on training@skaltd.co.uk for more information or to book now.

What Does ATEX Mean, and How Does It Apply?

ATEX refers to two European directives that set requirements for equipment and protective systems intended for use in explosive atmospheres, along with minimum safety obligations for workplaces. A detailed DSEAR assessment provides the foundation for ATEX compliance by systematically identifying hazardous zones, assessing the nature and extent of explosion risks, and verifying that appropriate engineering controls and procedural safeguards are implemented within classified areas.

We can also support with ATEX inspections in accordance with BS EN 60079, to confirm where ATEX-rated equipment is correctly installed, identify where it may be required, and advise on where alternative controls could be implemented.

How Can I Discuss a DSEAR Risk Assessment Further?

To discuss DSEAR Risk Assessments or any additional needs your business might have, contact our Risk Solutions Team for a no-obligation consultation at risksolutions@skaltd.co.uk or call 01427 420 404