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Chemistry · Glossary

What is Risk assessment?

Also known as: hierarchy of controls

Definition 33.24 University Chemistry — Year 3 · Chapter 33 — Lab Techniques III: Research Practice

A risk assessment of a procedure identifies its hazards, estimates the likelihood and severity of harm in the planned conditions, and sets the controls that reduce the risk to an acceptable level. The hierarchy of controls ranks them from most to least effective: elimination, substitution, engineering controls, administrative controls, personal protective equipment.

The hierarchy of controls, as an inverted pyramid: removing or replacing the hazard protects everyone, always; protective equipment protects only its wearer, and only when worn and intact.
The hierarchy of controls, as an inverted pyramid: removing or replacing the hazard protects everyone, always; protective equipment protects only its wearer, and only when worn and intact.
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