ATEX is the name commonly given to the procedure for controlling explosive atmospheres and the standards of equipment and systems used.
It is based on the following European Directives.
1) Directive 99/92/EC ('ATEX Workplace Directive’) on minimum requirements for improving the health and safety protection of workers potentially at risk from explosive atmospheres.
DSEAR stands for the Dangerous Substances and Explosive Atmospheres Regulations 2002.
Dangerous substances can put peoples safety, at risk from fire and explosion. DSEAR puts duties on employers and the self-employed to protect people from risks to their safety from fires, explosions and similar events in the workplace, this includes members of the public who may be put at risk by work activity.
An explosive atmosphere is defined as a mixture of dangerous substances with air, under atmospheric conditions, in the form of gases, vapours, mist or dust in which, after ignition has occurred, combustion spreads to the entire unburned mixture.
Atmospheric conditions and ambient temperatures are commonly referred to as temperatures of –20°C to 40°C and pressures of 0.8 to 1.1 bar.
Dangerous substances are any substances used or present at work that could, if not properly controlled, cause harm to people as a result of a fire or explosion. These can be found in most workplaces which include the following items organic dusts, paints, solvents and flammable gases.
Identify which dangerous substances are in their workplace then identify the fire and explosion risks;
Then to establish control measures to remove those risks, or where this is not possible, how to control them and reduce there effects;
Identify and classify areas of the workplace where explosive atmospheres may occur and avoid ignition sources in those areas.
Prepare plans and procedures to deal with accidents, incidents and emergencies involving dangerous substances;
Make sure employees are properly trained to control or deal with the risks from the dangerous substances;
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