Identify safety and hazard in
the Agriscience laboratories
Explain the meaning of Safety
• Safety – preventing loss or injury
A. Injury and loss may be inflicted on people or their property
1. People can suffer cuts and other wounds
2. Injury to eyes and hearing
3. Loss append-ages or death
Explain the meaning of Safety
4. Animals, crop, machinery, and other property can be
injured or destroyed by accidents.
5. Safety should also consider protecting the environment
from:
a. spill of toxic materials
b. release of smoke
Explain the meaning of Safety
B. Precautions can be taken to make an environment safer.
1. Accident- is an event that occurs unintentionally.
People do not know that an accidents is going to happen.
Where can an accident happen?
Explain the meaning of Safety
2. Hazard- is a danger where risk is present.
Some hazards are more hazardous than others
Examples: using a computer is less hazardous than
operating a
motor vehicle
Explain the meaning of Safety
3. Risk- is the chance that an accident will occur.
Risk can be reduced by taking the proper precautions.
How?
Explain the meaning of Safety
4. Carelessness- is failing to pay attention to hazards and
taking unnecessary risk.
Many people know what is safe but fail to go about their
work and activities in a careful manner.
Explain the meaning of Safety
C. Safety is important for a number of reasons.
1. People are protected
2. Animals are protected
3. Property is protected.
Explain the meaning of Safety
4. Medical expenses are avoided
5. Equipment is protected
6. Buildings last longer
List hazards found in Agriscience laboratories
1. Using power tools and equipment
2. Using living organism
3. Using chemicals, fertilizer, and other materials
4. Using electricity
List hazards found in Agriscience laboratories
5. Constructing project, carrying out experiments and
handling animals
6. Using water
7. Exposure to the sun
List hazards found in Agriscience laboratories
Use chemicals safely
A. Material Safety Data Sheets (MSDS)- are sheets sent with all
shipments of chemicals and are available from chemical
suppliers or via the Internet.
B. MSDS provide information on the safe use of the particular
chemical.
C. You should always understand the chemical that is being used.
List hazards found in Agriscience laboratories
Follow basic rules:
1. Know the materials
2. Never touch or taste the substance
3. Avoid in-haling fumes
4. Conduct experiments in ventilated areas
5. Store and label chemicals properly
Identify and properly use personal protection
equipment (PPE)
Personal protective equipment (PPE)- Devices worn or used to
protect from injury.
1. Eye protection
A. Goggles – lens and rims that prevent solid object,
liquids and other materials from getting into the eyes.
B. Safety glasses – specially designed spectacles that
prevent flying objects from getting into the eyes.
Identify and properly use personal protection
equipment (PPE)
C. Face Shields- break-resistant see-through plastic material
that covers the entire face
2. Hearing protection
A. Ear plugs- are small foam rubber that fit into the ear canal to
reduce the passage of sound waves into the ear.
B. Ear muffs- are sound absorptive devices that cover the entire
outer ear prevent the passage of sound waves into the ear.
Identify and properly use personal protection
equipment (PPE)
3. Skin and body- protection is needed to prevent injury to the
skin, bones, and other body tissues and organs.
A. Gloves- worn on hands to protect from solutions, cuts
and abrasions
B. Boots/ shoes- may be needed depending on the hazard in
the laboratory
Identify and properly use personal protection
equipment (PPE)
C. Hats- used to protect from falling objects and other
harzards and reduce contamination of food products with hair.
D. Aprons and special clothing are needed in some
situations, such as a chemical laboratory.
Identify and properly use personal protection
equipment (PPE)
Respiratory-needed in places where dust, liquid droplets,
gases and other materials may be in the air.
A. Particle masks- should be clean and fit properly over the
nose and mouth
B. Respirator- needed in areas where smoke, fumes, and
other air-borne materials are being released.
Electricity Safety
Electricity- is the flow of electron
A. shock or electrocution can occur if an individual serves as
the conduit for the flow of electrons
B. moisture increase the rate of flow
Electricity Safety
Safety:
1. Use ground fault circuit interrupters (GFCI) on circuits
2. Install all wiring and devices properly
3. Use UL approved materials
Electricity Safety
4. Be sure switches are off when installing electrical devices
5. Avoid water when using electricity
6. Avoid extension cord
Safety Rules In The Agriscience Lab
1. Learn how to be safe
2. Think safety; anticipate and avoid dangers
3. Wash hand after working in the lab
4. Properly wear PPE
Safety Rules In The Agriscience Lab
5. Read and follow instructions
6. Keep equipment and facilities in good condition
7. Use GFCI
8. Use life vest and throwable tethered buoys
Safety Rules In The Agriscience Lab
9. Never take unnecessary risk
10. No eating or drinking in the lab
11. No horseplay in the lab
12. Keep facilities clean and free of debris
Safety Rules In The Agriscience Lab
13. Alert other people to safety
14. Have a telephone and post emergency numbers
Identify the three conditions necessary for
combustion.
To produce fire, 3 components must be present at the same
time. They are known as the Fire Triangle.
1. Fuel- is any combustible material that will burn.
A. common fuels are gasoline, diesel, wood paper and
propane
B. most materials will burn if they are made hot eough in
the present of oxygen.
Identify the three conditions necessary for
combustion.
2. Heat- simply refers to a type of energy that causes the
temperature to rise.
Example: If the room temperature changes from 50 degrees to
70 degrees, it is done by using heat.
Identify the three conditions necessary for
combustion.
3. Oxygen- is a gas in the atmosphere.
It is not a fuel, but must be present for fuels to burn.
Oxygen is nearly always present except in airtight conditions.
This fact is important to remember in fire safety and control.
Explain how to prevent fires in agricultural
mechanics.
1. Proper storage of material decreases the chance of fire.
2. Clean work areas also decrease the chance of a fire.
3. If any one of the three components of the fire triangle is
eliminated , fire will be prevented from starting or it will be
stop if it has started.
Explain how to prevent fires in agricultural
mechanics.
The basic steps in fire prevention and control are:
1. Store fuels in approved containers.
2. Store fuels away from other materials that burn easly.
3. Store materials in area that are cooler than their
combustion temperature
Explain how to prevent fires in agricultural
mechanics.
4. Use fire only in safe surroundings.
5. Put out fires by removing one or more elements in the fire
triangle.
Identify the different classes of fires and the
different types of fire extinguishers
The fires classes are:
1. Class A- Ordinary Combustibles
wood ,papers, and trash
Class A combustion do not include any item in the presence
of electricity or any type of liquid.
Identify the different classes of fires and the
different types of fire extinguishers
2. Class B- Flammable Liquid
Include fuels, greases, paints and other liquid as long as
they are not in the presence of electricity.
Identify the different classes of fires and the
different types of fire extinguishers
3. Class C – Electrical Equipment
Class C fires involve the presence of electricity
Identify the different classes of fires and the
different types of fire extinguishers
Class D- Combustible Metals
1. Are metals that burn.
2. Burn metal are very difficult to extinguish.
3. Only class D extinguisher will work on burning metals
Identify the different classes of fires and the
different types of fire extinguishers
The common types of extinguishers are:
1. Water with pump or gas pressure used for Class A fires.
2. Carbon dioxide gas used for Class B and C fires.
3. Dry chemical used for Class A, B, and C fires.
Describe the proper use of fire extinguishers.
The basic steps are as follow:
1. Hold the extinguisher upright and pull blocking pin.
2. Move within 6 to 10 feet of the fire.
3. Aim the nozzle of the extinguisher toward the base of the
fire.
Describe the proper use of fire extinguishers.
• 4. squeeze lever and discharge contents using a side to side
sweeping motion.
• 5. have extinguishers serviced after each use.
Describe the proper use of fire extinguishers.
1. A monthly inspection of all fire extinguishers should be
made to ensure that the extinguishers are usable in case of an
emergency.
2. Have extinguishers inspected and service annually by a
qualified service technician.
Describe the different types of burns that can
occur in agricultural mechanics.
The three classification of burns:
1. First degree burns-occur when the surface of skin is reddish
in color, tender and painful and do not involve any broken
skin.
A. Treated by running cold water or cold compress
B. Cover with non-fluffy sterile or clean bandages
C. Do not apply butter or grease
Describe the different types of burns that can
occur in agricultural mechanics.
2. Second degree burns- surface of skin is severely damaged,
resulting in the formation of blisters and possible breaks in skin.
A. treat by place under cold water or apply cold compress until
pain diseases
B. Cover with dried area with bandage to prevent infection
C. Seek medical attention
D. do not apply ointments spray antiseptics or home remedies
Describe the different types of burns that can
occur in agricultural mechanics.
3. Third degree burn-surface of skin and possibly the tissue
below the skin appear white or churred.
A. Little pain is present because nerve ending have being
destroyed.
B. Do not remove ant clothes that are stuck to the burn
C. Do not put ice water or ice on the burns
Describe the different types of burns that can
occur in agricultural mechanics.
D. Do not apply ointments, spray, antiseptics, or home
remedies.
E. Place Cold clothes or cool (not ice) water on burns.
F. Cover burned area with thick, sterile dressings.
G. Call for an ambulance immediately