Explosive Atmospheres (DSEAR)

DSEAR (Dangerous Substances and Explosive Atmospheres Regulations) is concerned with the protection against risks from fire, explosion and similar events, arising from the use of dangerous substances in the workplace. The regulations set out minimum requirements for the protection of workers from fire and explosion risks related to dangerous substances and potential explosive atmospheres.

DSEAR became part of UK law in June 2003, the legislation imposing duties on employers and the self employed, with a transitional period allowing existing facilities 3 years to comply with the requirements of the legislation.

The transitional period ended on the 1st July 2006, by which time existing facilities must have complied.

Lorien provide DSEAR gap studies for existing plants, and Basis Of Safety documents and Area Classifications for new plant designs.


  • One-stop consultancy service for DSEAR (hazardous areas classification), and also links to our machine safety services. 
  • Experience gained over a wide range of applications including sugar confectionery, ready meals, brewing and beverages, spreads, snack foods, dairy and cereals.


  • Competent and experienced staff 
  • Area classification 
  • Basis of safety documents 
  • DSEAR audits 
  • Gap studies 
  • Specialists in food and beverage equipment