Class 1:	Fatal if swallowed [LD50 ≤ 5]
Class 2:	Fatal if swallowed [5 < LD50 ≤ 50]
Class 3:	Toxic if swallowed [50 < LD50 ≤ 300]
Class 4:	Harmful if swallowed [300 < LD50 ≤ 2000]
Class 5:	It may be harmful if swallowed [2000 < LD50 ≤ 5000]
Class 6:	Non-toxic [LD50 > 5000]