Hazard Property Codes (HP)

HP4 - Irritant

Hazard Property Symbol HP4 Irritant  - Red Diamond Black Exclamation Mark Warning


- Waste which on application can cause skin irritation or damage to the eye. - Hazards HP 4 and HP 8 are linked because they refer to the potential for harm or damage to tissue at different levels of severity. - Hazardous wastes containing irritant substances will only display irritant properties. Hazardous wastes containing corrosive substances can display either corrosive or irritant properties dependent upon concentration. - The mechanical irritation produced by some substances, for example mineral wool, is not included within the definition of HP 4