RR526 - Assessment of fire and explosion risks in coating mixing operations

The Dangerous Substances and Explosive Atmospheres Regulations 2002 (DSEAR) necessitate a re-assessment of the fire and explosion risks arising from the formation of explosive atmospheres in and around coatings mixing vessels. A programme of work has been commissioned by HSE to review the hazards that would need to be covered by the risk assessment and to carry out experimental work to fill in any gaps in knowledge. The outcome of the project would be used to inform the development of HSE's DSEAR Enforcement Policy on coatings mixing operations. This report presents the findings of Phase 2 of the project, the objectives of which were to:

  • Undertake site visits to make vapour concentration measurements in and around coatings mixing vessels.
  • Perform ignition tests on example coatings at HSL.

This report and the work it describes were funded by the Health and Safety Executive (HSE). Its contents, including any opinions and/or conclusions expressed, are those of the author alone and do not necessarily reflect HSE policy.

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Updated 2021-04-20