A hazardous material may be classified based on its ability to burn.
|
Flash Point
|
DOT Term
|
|
< 23°C
|
highly flammable
|
|
23 to 37.7°C
|
flammable
|
|
37.8 to 60°C
|
flammable, may be termed combustible
|
|
> 60 to <= 93°C
|
combustible
|
|
Flash Point
|
Boiling Point
|
OSHA Category
|
|
< 23°C
|
<= 35°C
|
1
|
|
< 23°C
|
> 35°C
|
2
|
|
23 to 60°C
|
NA
|
3
|
|
> 60 to <= 93°C
|
NA
|
4
|
|
> 93°C
|
NA
|
NA
|
When a liquid with a flashpoint > 23°C is heated to within 16.7°C of its flashpoint then handling precautions should be in place.
