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Dangerous Substances and Explosive Atmospheres Regulations (DSEAR) (Guidance note 19)


DSEAR applies to workplaces where dangerous substances are present, used, or produced. Some requirements of DSEAR which deal specifically with explosive atmospheres, do not apply to industries such as mining and offshore oil and gas production. See  for more details of the scope and specific exclusions. This guidance note outlines the types of activities covered by DSEAR related to hydrocarbon and ammonia refrigerating system design, installation, and maintenance or service activity including ownership including the use of acetylene for welding.

The Dangerous Substances and Explosive Atmospheres Regulations 2002 implement in the UK the requirements of the European Directive on Minimum Requirements for Improving the Safety and Health Protection of Workers Potentially at Risk from Explosive Atmospheres (commonly referred to as “ATEX workplace”.) It is noted that DSEAR also includes requirements from European Directive on the Protection of the Health and Safety of Workers from the Risks Related to Chemical Agents at Work (or “CAD”).

(This is an extract from the introduction to the 4-page guidance note)

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