ADH Biology 1.1 (a) health and safety

Hazard

Something that can cause harm or injury to people, other organisms or ecological damage.

COSHH

Control of substances hazardous to health. A risk assessment that must be carried out before any practical work begins to ensure practitioners are aware of the risk and how to minimise them

Risk

A likelihood of harm arising from exposure to a hazard

PPE

Personal protective equipment

3 categories of Control measures which reduces risk

PPE (personal protective equipment)

Aseptic techniques

Autoclaving (heat sterilising or incineration, disinfecting with 70% ethanol)

3 classes of hazardous substances

Toxic chemicals (lead ethaonate can bioaccumulate)

Corrosive chemicals (concentrated sulfuric acid can cause burns)

Flammable substances (ethanol)

3 types of hazard found in lab

Substances

Organisms

Equipment

Corrosive

Flammable

Oxidising

Explosive

Harmful

Radioactive

Toxic

Harmful to the environment