Editing Toxicity (section)

====Acute toxicity====
{{Main|Acute toxicity}}
{{See also|Lethal dose}}
{{More citations needed section|date=August 2009}}
Acute toxicity looks at lethal effects following oral, dermal or inhalation exposure. It is split into five categories of severity where Category 1 requires the least amount of exposure to be lethal and Category 5 requires the most exposure to be lethal. The table below shows the upper limits for each category.

{| class="wikitable"
|-
! Method of administration
! Category 1
! Category 2
! Category 3
! Category 4
! Category 5
|-
| Oral: {{LD50}} measured in mg/kg of bodyweight
| 7
| 50
| 300
| 2 000
| 5 000
|-
| Dermal: LD<sub>50</sub> measured in mg/kg of bodyweight
| 50
| 200
| 1 000
| 2 000
| 5 000
|-
| Gas Inhalation: [[LC50|LC<sub>50</sub>]] measured in [[Ppmv|ppmV]]
| 100
| 500
| 2 500
| 20 000
| Undefined
|-
| Vapour Inhalation: LC<sub>50</sub> measured in mg/L
| 0.5
| 2.0
| 10
| 20
| Undefined
|-
| Dust and Mist Inhalation: LC<sub>50</sub> measured in mg/L
| 0.05
| 0.5
| 1.0
| 5.0
| Undefined
|}

Note: The undefined values are expected to be roughly equivalent to the category 5 values for oral and dermal administration.{{Citation needed|date=April 2010}}