12.2: Laboratory Rules, Equipment & Hazard Symbols

To prevent accidents, to protect against harmful substances, to ensure proper use of equipment, to maintain a clean working environment, to prepare for emergencies, to protect others

Why do we have lab rules? (6)

Flammable

This symbol indicates substances that can easily catch fire

It is found on chemicals like alcohols or acetone

Keep these substances away from heat or open flames

Corrosive

This symbols warns of chemicals that can cause severe skin burns or eye damage

Like acids ( e.g., HCl (aq) – hydrochloric acid) and base ( e.g., NaOH - sodium hydroxide)

Handle with gloves and goggles

Toxic

This symbol indicates poisonous substances that can cause harm if inhaled, ingested, or touched

Special precautions are needed such as using fume hoods and wearing of protective gears

Explosive

This symbol warns of chemicals or reactions that may cause explosions under certain conditions, such as highly reactive substances

Handle with care, and keep away from heat and pressure

Biohazard

This symbol indicates the presence of biological materials that pose a risk to health, such as bacteria, viruses, or other harmful microorganisms

Use protective equipment and proper disposal methods

Irritant/Harmful

This symbol signals substances that may cause skin or eye irritation, allergic reactions, or discomfort if inhaled

Wear appropriate protection like gloves and masks

Eye protection required

This symbol indicates that safety goggles must be worn to protect eyes from harmful chemicals, sharp objects, heat, or biological hazards

Hand protection required

This symbol means that gloves must be worn to protect hands from chemicals, heat, or biological hazards

General safety warning

This is a general caution symbol indicating the need to be aware of potential hazards in the area or process

Oxidizing

Represents substances that can cause or intensify fires by providing oxygen or other oxidizing agents

These materials do not burn themselves, but they can promote or accelerate the combustion of other materials

They can be highly reactive, especially in the presence of flammable substances

Beaker

Name the laboratory equipment

Bunsen burner

Name the laboratory equipment

Gas bottle

Name the laboratory equipment

Buret

Name the laboratory equipment

24-well plate

Name the laboratory equipment

Pipet

Name the laboratory equipment

Thermometer

Name the laboratory equipment

Ring stand

Name the laboratory equipment

Pipestem triangle

Name the laboratory equipment

Utility clamp

Name the laboratory equipment

Iron ring

Name the laboratory equipment

Wire gauze

Name the laboratory equipment

Graduated cylinder

Name the laboratory equipment

Safety goggles

Name the laboratory equipment

Tongs

Name the laboratory equipment

Wash bottle

Name the laboratory equipment

Spatula

Name the laboratory equipment

Scoopula

Name the laboratory equipment

Micropipets

Name the laboratory equipment

Dropper

Name the laboratory equipment

Funnel

Name the laboratory equipment

Test-tube rack

Name the laboratory equipment

Wire brush

Name the laboratory equipment

File

Name the laboratory equipment

Forceps

Name the laboratory equipment

Test tube holder/clamps

Name the laboratory equipment

Lab burner

Name the laboratory equipment

Triple beam balance

Name the laboratory equipment

Watch glass

Name the laboratory equipment

Erlenmeyer flask

Name the laboratory equipment

Corks

Name the laboratory equipment

Mortar and pestle

Name the laboratory equipment

Crucible and cover

Name the laboratory equipment

Erlenmeyer flask

Name the laboratory equipment

Evaporating dish

Name the laboratory equipment

Test tubes

Name the laboratory equipment

Alcohol lamp

Name the laboratory equipment

Platform balance

Name the laboratory equipment

Digital balance

Name the laboratory equipment

Harmful

Name the symbol

Explosive

Name the symbol

Corrosive

Name the symbol

Dangerous for the environment

Name the symbol

Radioactive

Name the symbol

Biohazard

Name the symbol

Toxic

Name the symbol

Oxidizing

Name the symbol

General danger

Name the symbol

Flammable

Name the symbol

Electrical hazard

Name the symbol