This document discusses various biochemical hazard signs that are labeled on bottles of laboratory reagents and chemicals. It lists 9 types of hazard signs: 1) flammable solvents or gas, 2) highly toxic chemicals or gas, 3) oxidizers, 4) corrosive materials, 5) biohazard, 6) radioactive material, 7) laser light, 8) restricted area, and 9) cancer suspect agent. It then provides brief descriptions and examples of substances that would require labels of harmful, flammable, oxidizing, toxic, corrosive, irritating, explosive, and dangerous for the environment. The document concludes by listing additional prohibited acts in laboratories.

1. BIOHAZARD
Mr:Mahmoud ibrahim

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

3. 1. FLAMMABLE SOLVENTS OR GAS.
2. HIGHLY TOXIC CHEMICALS OR GAS.
3. OXIDIZERS.
4. CORROSIVE MATERIALS.
5. BIOHAZARD.
6. RADIOACTIVE MATERIAL.
7. LASER LIGHT.
8. RESTRICTED AREA.
9. CANCER SUSPECT AGENT.

4. HARMFUL SUBSTANCES
is one that cause limited
effects on health if inhaled
, swallowed , or absorbed
through the skin. E:g
potassium oxalate.
H

5. FLAMMABLE
Flammable substance are
more serious fire risk
because they ignite easily
, e:g acetone.

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.

9. IRRITATING
Can cause inflammation
and irritation of the skin
,mucus membranes and
respiratory tract . E:g
formaldahede vapour I

10. EXPLOSIVE
Heat , flame , knocks or frication can cause
explosive chemical to explode . E:g picric
acid.

11. DANGEROUS FOR ENVIRONMENT
Can cause immediate
long term harm to
aquatic life. E:g
sodium azid.

12. LASER LIGHT.

13. SMOKING PROHIBITED

14. FIRE, OPEN LIGHT AND
SMOKING PROHIBITED

15. THOROUGHFARE PROHIBITED

16. NOT DRINKING WATER

17. NO INTERY

18. NO MOUTH PIPETTING

19. DRINKING PROHIBITED

20. SMOKING, DRINKING AND EATING
PROHIBITED

21. ANY QUESTIONS..??