Key terms
Confined spaces: 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.
6 terms, United Kingdom version
- Attendant
- A person stationed outside a confined space to keep contact with those inside and raise the alarm.
- Confined space
- A substantially enclosed place where serious injury can occur from hazardous substances or conditions.
- Gas monitor
- A calibrated instrument that measures oxygen, flammable and toxic gases.
- Hydrogen sulphide
- A toxic gas from drains and sewage, which smells of rotten eggs at low levels but deadens the sense of smell at higher ones.
- Isolation
- Disconnecting and locking off pipes, power and moving parts so they cannot harm people inside.
- Permit to work
- A formal written system that records checks and authorises entry or high-risk work for a set time.
These terms come from the United Kingdom version of the course. See what the course covers.