Key terms

DSEAR awareness: key terms

Plain-English definitions of the words used in the course. In the lessons, tap any underlined term to read its definition without leaving the page.

7 terms, United Kingdom version

ATEX
The EU rules on explosive atmospheres, covering equipment and workplaces.
Bonding and earthing
Connecting equipment electrically to discharge static safely.
DSEAR
The Dangerous Substances and Explosive Atmospheres Regulations 2002 (UK).
Explosive atmosphere
A mixture of flammable gas, vapour, mist or dust with air that can ignite.
Ignition source
Anything that can start a fire or explosion, such as a flame, spark, hot surface or static.
Secondary explosion
A larger explosion caused when a first blast lifts settled dust into the air.
Zone
An area classified by how likely an explosive atmosphere is: 0, 1, 2 for gas and 20, 21, 22 for dust.

These terms come from the United Kingdom version of the course. See what the course covers.