The Dangerous Substances and Explosive Atmospheres Regulations (DSEAR) 2002 are the UK enactment of the European Directive ATEX 137 and part of the Chemical Agents Directive. Dangerous substances include those capable of forming an explosive atmosphere as well as those capable of highly energetic or runaway reactions. DSEAR place a duty on employers to protect members of the public as well as employees from the risks of fires, explosions and similar events.

DSEAR applies to all workplaces where dangerous substances are present, used or produced. This encompasses all activities such as processing, packing, warehousing, storage and transportation in addition to planned or emergency maintenance.

DSEAR requires employers to:

  • Assess the fire and explosion risks caused by dangerous substances and work activities.
  • Eliminate those risks or put in place measures to reduce the effect of any incidents.
  • Classify areas where explosive atmospheres may occur into zones.
  • Mark hazardous zones with signs where there is a benefit in terms of risk reduction.
  • Prepare plans and procedures to deal with accidents, incidents and emergencies.
  • Inform and train employees to control or deal with those risks.
  • Select equipment and protective systems suitable for the hazardous zones.
  • Ensure that the overall explosion safety measures are confirmed (verified) as being suitable by a competent person or organisation before any work area containing zones comes into operation for the first time.

HSD’s experienced team of consultants has been involved in carrying out explosion risk assessments and hazardous area classification studies for many years, since before DSEAR came into force.

HSD has carried out DSEAR and ATEX assessments in a wide range of industries including

  • Chemicals and pharmaceuticals
  • LPG storage and handling
  • Aerosol manufacture
  • Food and drinks manufacture
  • Wood and wood processing
  • Glass and glass fibre manufacture
  • Research and Development facilities

To find out more about how we can assist your company with regards to DSEAR/ ATEX, please contact us.