2. • many signs labeled in the bottles of lab
reagents ,it aid to safety if well flow it when
we use the chemical substance or
reagent.
•they are :
BIOCHEMICAL HAZARD SIGNS
6. OXIDIZING
Is one that produces heat or
evolve oxygen in contact with
other substance causing them
to burn strongly or become
explosive. E:g hydrogen
peroxied.
7. TOXIC
Toxic that can cause serious acute or
chronic effects , even death .e:g methanol
8. CORROSIVE
It allowed to come in contact with skin can
destroy livening tissue and also capable of
damaging inanimate substances. E:g phenol.