DSEAR Risk Assessing and Surveying

Specializing in hazardous area classification, risk assessment preparation, and selecting suitable equipment, we excel in designing bespoke engineering solutions. Our expertise ensures safety and compliance in challenging environments, offering tailor-made solutions for your specific needs.

  • Our expert team provides comprehensive DSEAR compliance support, including hazardous area classification, risk assessment preparation, equipment selection, and engineering solution design. We offer specialised DSEAR and Hazardous Area Classification Services, ensuring safety and efficiency in your operations:
    • DSEAR Risk Assessments.
    • Hazardous Area Classification.
    • Identification of dangerous substances that may apply under DSEAR.
    • Risk Assessments to assess the likelihood and consequences of releases associated with the storage and handling of dangerous substances.
    • Preparation of a prioritised action plan to mitigate the risk and develop a Basis of Safety.
    • Advice on selection of equipment within ATEX zones, and risk of ignition from mechanical sources such as mixers via Mechanical Equipment Ignition Risk Assessment.
    • Advice on area signage and labelling requirements.
  • Industries regularly using DSEAR-regulated substances include manufacturing, chemical processing, energy production, and other sectors prioritizing safety with hazardous materials.
    • Food Manufacturing – ammonia refrigeration, explosive powder handling (i.e. flour, spices).
    • Distilling – production and storage of flammable ethanol.
    • Engineering – acetylene and natural gas welding processes, compressed gas use.
    • Metal Processing – widespread use of flammable solvents, powder/plasma paint booths.
    • Wood Processing – generation of explosive wood dust.
    • Oil, Gas and Petrochemicals – The use or storage of refined hydrocarbons including LPG, kerosene and diesel used as a fuel source.
    • Clean Energy – hydrogen generation, storage and use and BESS.
    • Pharmaceutical – manufacturing of compound based on solvents and organic powders.
  • What is DSEAR assessment?
    • Do you store or handle dangerous substances?  These can include flammable gases, vapours or liquids, combustible dusts, oxidising materials, compressed gases, or materials corrosive to metal.  Processing or storing dangerous substances poses a potential threat of fire, explosion, or other energy-releasing events.
    • The Dangerous Substance and Explosive Atmospheres Regulations 2002 (DSEAR) specify the minimum requirements for protecting people from these risks.
    • Your site needs to:
      • Prepare a suitable and sufficient risk assessment.
      • Eliminate and reduce the risk from dangerous substances.
      • Complete a formal Hazardous Area Classification (HAC).
      • Manage ignition sources within hazardous areas.
      • Establish provision to deal with accidents, incidents, and emergencies.
      • Provide information, instruction, and training to all relevant personnel.
      • Ensure dangerous substances can be identified on site.
      • Even without a serious incident that results in damage, injury or loss of life, non-compliance can have serious consequences, with those found in breach of DSEAR subject to heavy fines or even prosecution.
  • What is a DSEAR zone?
    • Hazardous areas are classified into zones based on an assessment of the frequency of the occurrence and duration of an explosive gas atmosphere, as follows:
      • Zone 0: An area in which an explosive gas atmosphere is present continuously or for long periods.
      • Zone 1: An area in which an explosive gas atmosphere is likely to occur in normal operation.
      • Zone 2: An area in which an explosive gas atmosphere is not likely to occur in normal operation and, if it occurs, will only exist for a short time.
    • Various sources have tried to place time limits on to these zones, but none have been officially adopted. The most common values used are:
      • Zone 0: Explosive atmosphere for more than 1000h/yr.
      • Zone 1: Explosive atmosphere for more than 10, but less than 1000 h/yr.
      • Zone 2: Explosive atmosphere for less than 10h/yr., but still sufficiently likely as to require controls over ignition sources.
    • Where you wish to quantify the zone definitions, these values are the most appropriate, but for most situations a purely qualitative approach is adequate.
    • When the hazardous areas of a plant have been classified, the remainder will be defined as non-hazardous, sometimes referred to as ‘safe areas.
    • The zone definitions take no account of the consequences of a release. If this aspect is important, it may be addressed by upgrading your specification of equipment or controls over activities allowed within the zone. The alternative of specifying the extent of zones more conservatively is not generally recommended, as it leads to more difficulties with equipment selection, and in respect of control over health effects from vapours assumed to be present. Where you choose to define extensive areas as Zone 1, the practical consequences could usefully be discussed during site inspection.
    • (Contains public sector information published by the Health and Safety Executive and licensed under the Open Government Licence).
  • How often should a DSEAR assessment be carried out?
    • You should plan to review your risk assessment at regular intervals. The time between reviews depends on the nature of the risk and degree of change likely in activities. It should also be reviewed if significant changes have taken place, or you conclude it is no longer valid and following an accident or dangerous occurrence.
    • When reviewing your risk assessment, you should take the opportunity to re-examine your control and mitigation measures. This should include considering whether it is now possible to replace the substance or process with a less dangerous one. The risk assessment should be modified if developments mean it is no longer valid. Records, where required, of significant findings should also be updated.
    • (Contains public sector information published by the Health and Safety Executive and licensed under the Open Government Licence).

Proudly Serving Clients throughout the UK with courses in Hampshire, Surrey, Berkshire, London, and Hertfordshire.
Call 01252 214 075 or Email [email protected] to Discuss Your Needs!

Contact Us