Laboratory safety is crucial to prevent accidents, with strict rules regarding eye protection, handling glassware, sharp instruments, electrical equipment, chemicals, and fire safety. It emphasizes the importance of wearing safety goggles, avoiding broken glass, and handling chemicals with care. Safety signs play a vital role in signaling hazards and guiding safe practices in the laboratory.

1. SAFETY MEASURES
IN THE LABORATORY

2. When working in the laboratory, it is very important to
follow safety procedures to avoid any incidents.
Here are some laboratory safety rules:
 Eye and Face Safety
a. Always wear safety laboratory googles.
b. Always point a bottle or test tube away from you and others when it is
heated.
 Glassware Safety
a. Never use broken glassware.
b. When heating any glassware, be sure that it is thoroughly dry.
c. In picking up hot glassware, always use heat-resistant gloves.
d. Always clean glassware thoroughly after using it.

3.  Sharp Instrument Safety
a. Always handle sharp instruments with extreme care.
Always cut material away from you.
b. Avoid using double-edged razors.
c. Inform your teacher immediately if you accidentally cut
yourself while doing an experiment.
 Electrical Safety
a. Never touch an electrical outlet or appliance when your
hands are wet.
b. Do not overload the socket by plugging in too many
different appliances into one socket.
c. Do not use long extension cords to plug in an electrical
devise.

4.  Chemical Safety
a. Do not mix chemicals unless told to do so.
b. Do not taste or touch any chemical unless instructed.
c. Do not smell any chemical directly from its container.
d. Close all lids when chemicals are not in use.
e. Always rinse any chemical off your skin and laboratory gown with
water.
 Heat or Fire Safety
a. Wear safety googles whenever you use any source of fire.
b. Never heat any chemicals unless told to do so.
c. Do not heat-seal containers.
d. Never reach across a flame.
e. Use clamps, tongs, or heat-resistant gloves to handle hot objects.

5. SAFETY SIGNS
 Safety signs are of great importance in all places,
particularly in the laboratory to provide protection and
caution and to avoid any unforeseen incident. The
handling of different chemicals, acids, and other
substances is to be done with great care as these have
some inherent features that can be harmful to health.

6. SYMBOL MEANING DEFINITION
POISONOUS
Chemicals are fairly dangerous if ingested or
inhaled. Many of these are dangerous even
upon contact.
FLAMMABLE OR
EXTREMELY FLAMMABLE
Chemicals are to be stored in a flame-resistant
cupboard. Volatile solvents can be a particular
problem as they are prone to spreading around
from unsealed containers.
CORROSIVE
Avoid contact with the skin. Bear in mind that
these (under some circumstances) can rust
chemical cupboards.

7. OXIDIZING CHEMICAL
Oxidizing chemicals are materials that
spontaneously release oxygen at room temperature
with slight heating or promote combustion. They
are to be kept away from flammable chemicals at
all costs.
KEEP AWAY FROM FOODSTUFF
Harmful materials are to be kept away from edible
materials to avoid contamination.
DANGEROUS WHEN WET Walk with caution. This area is slippery when wet.
FLAMMABLE GAS OR LIQUID
This safety symbol is used for the transport or
storage of flammable gas or liquid.