Contents
Introduction What's Inside?
Lesson 1 Take Control of Your Own Safety
Lesson 2 Prepare for Safe Operation
Lesson 3 Avoid Rollover Accidents
Lesson 4 Avoid Run Over Accidents and Collisions
Lesson 5 Moving Parts and Machinery Hazards
Lesson 6 Highway Safety and Other Hazards.
Conclusion
Quiz Yourself Solutions
The is booklet teaches important safety practices to follow when using a tractor.
Safety tips, along with real accident reports, have been combined to give you a better understanding of the risks associated with this type of work.
Use this booklet along with hands-on safety training and the equipment operator's manual.
Lesson 1 Take Control of Your Own Safety
Objective:
Greatest Dangers
Failure to observe safety precautions when operating tractors and attachments can result in serious injury or death. The e most common types of serious accidents are:
1. Rollovers
You can be seriously injured or killed if the tractor rolls over.
Accident Report Employee Killed When When Tractor Rolls Over |
Summary of OSHA Accident Inspection 112205341660 An employee was using a tractor with a mowing implement. He was not wearing his safety belt. While mowing on a slope, the tractor rolled to the side, pinning him between the rollover protective structure (ROPS) and the ground. He died from his injuries. Always wear your safety belt; use extra
caution when operating on a slope. |
2. Runovers
You can be seriously injured or killed if run over by a tractor.
Accident Report Employee Killed When Run Over By Unmanned Tractor |
Summary of OSHA Accident Inspection 111630969140 An employee attempted to jump start a tractor by connecting the battery cables to two other trucks. He was standing in front of the rear tractor tire, and as he turned the starter switch, the tractor moved forward. He was run over. Start the tractor only while sitting
in the operator’s seat. |
3. Being Caught in Moving Parts
You can be seriously injured or killed if you are caught in the equipment's moving parts.
Accident Report Employee Killed In Auger Entanglement |
Summary of OSHA Accident Inspection 123578858 Several employees were digging holes using a tractor with an attached post hole digger (auger). One employee walked around the digger and his shirt and pant leg became caught on the drive shaft. His leg twisted and was cut off below the knee and he hit his head on the auger's drive line. He was killed. Keep hands, feet and clothing away
from rotating machine parts. |
4. Collisions
You can be seriously injured or killed if a collision occurs.
Accident Report Employee Struck By Branch While Cutting Brush |
Summary of OSHA Accident Inspection 304474711 An employee was driving a tractor pulling a mowing implement. He hit a tree branch that entered the cab and struck him in the lower torso. He was killed. Watch for low hanging tree limbs and
other obstructions that could enter the cab of the tractor. |
Help Yourself
Safe work habits are important. Here are three actions you can take to be safe on the job site:
Safety Messages and Signs
Manufacturers put important safety messages on tractors and in the operator’s manual. It is critical to read, understand and follow safety messages.
The e triangle shape is the symbol for caution. The e exclamation mark in the center means Pay Attention. In some instances, the triangle shaped sign will show a picture. Other times, words explain why the sign is used.
Many safety messages use the words Caution, Warning and Danger to get your attention. Each sign has a color assigned to it to get your attention. There are universally accepted colors associated with each sign: caution signs are yellow, warning signs are orange and danger signs are red. Following are safety messages and their meanings. Each of these signs will have a written message, and perhaps a picture, about an unsafe condition.
CAUTION means you need to be careful. Follow the directions on the sign or you could get hurt.
WARNING is more serious and means you need to follow the directions on the sign or you could be badly hurt or killed.
DANGER is the most serious safety message. If you don’t follow the directions, you will be seriously injured or killed.
Quiz Yourself
For answers, click here.
a. Watch out for a rotating shaft | |
b. Wear eye protection. | |
c. Don’t get caught in moving parts. |
Lesson 2 Prepare for Safe Operation
Objectives
1. Identify and locate tractor parts to be checked before operation.
2. Discuss steps for safe start-up and shutdown.
Safety starts before the engine. A thorough inspection of the tractor is important before beginning work each day. Use the checklist on the next page as a guide for daily, visual inspections. If you find anything wrong during your daily check, alert your supervisor before starting the tractor.
Daily Pre-operation Checklist:
Safety Belt and ROPS
Your safety belt and the tractor’s Rollover Protective Structure (ROPS) work together to keep you on the operator’s platform if the tractor rolls over. Damage to either of these safety devices can lead to serious injury or death.
Guards and Shields
Safety guards and shields protect you from moving parts. Check the operator’s manual for the location of guards and shields. Check for safety decals alerting you to the location of guards. Guards and shields should not be damaged or bent. Report damage to your supervisor immediately.
Tires
Proper tire maintenance is important to maintain traction. Tires that show signs of damage, have excessive tread wear or are under inflated will not perform safely.
Steps and Operator’s Platform
Slips and falls on steps are a common cause of serious injury. Keep steps and the operator’s platform free of ice, mud and debris. When the non-slip step surface becomes worn, it can become slick and should be replaced immediately.
Fluid Leaks
Leaks can cause breakdowns and are possible fire hazards. Puddles or drops of fluid under the tractor indicate a leak. Report signs of leaking fluid to your supervisor immediately.
Fluid Levels
Check the gauge for fuel level, the dipstick for oil level and the radiator for coolant level before you begin each day, while the engine is still cold. Running low on any of these fluids can cause engine failure, and the loss of power may place you in danger.
Daily Tractor Checklist
|
Safe Start Up and Shut Down
Safe Entry and Start Up
You can be killed or seriously injured if you do not enter or start the tractor correctly. To prevent accidents, follow the instructions in the operator’s manual for entry and start up.
Three point technique |
OSHA Standard 1910.95 (i) (l) requires hearing protection to be worn when sound levels exceed certain limits (generally, a daily average of 85 or 90 decibels, depending on the circumstances). These levels can be measured with a sound level meter. A hearing conservation program requiring hearing tests and other precautions may also be necessary. Check with the equipment operator’s manual, as well as your supervisor, for suggestions on hearing protection for each piece of equipment as well as instructions on how to wear it properly.
Hearing Protection Rules of Thumb
Hearing protection may be needed if:
Tractor Tire Safety
You should inspect tires daily before operation, and pay attention to their condition throughout the workday. Tire maintenance should be performed only by trained, authorized personnel. Consult your operator’s manual for correct tire maintenance procedures for your vehicle and tire type.
Practice safe tire maintenance:
Protective Clothing:
stand away from tire |
Tire Pressure:
Damaged Tires/Rims:
Support Equipment:
Returning to Service:
Safe Shut Down
Protect yourself from death or injury by following safety procedures during the shutdown process.
Hitching and Unhitching Attachments and Implements
Safe Fueling Procedures
Quiz Yourself
For answers, click here.
Use the list of words to fill in the blanks of the safe start up procedures.
facingLesson 3 Avoiding Rollover Accidents
Objectives
1. Identify safe work procedures to prevent rollover accidents.
2. Evaluate safe operating procedures for hills and
slopes.
Rollover accidents often result in serious injury or death. the three types of tractor rollovers are to the side, rear and front.
Rollovers occur when a tractor becomes unbalanced. Some of the most common causes are:
Human reaction time is too slow to stop a rollover once it starts. You can avoid rollovers by recognizing dangerous situations and taking action to avoid them.
1. Side rollovers
Side rollovers are the most common type of rollover accident. they occur when the tractor becomes unbalanced, often while it is being driven across a hill, carrying a load too high, or traveling too fast across uneven ground.
Accident Report Employee Killed When Tractor Rolls Over |
Summary of OSHA Accident Inspection 120060140 An employee drove a tractor too close to the side of a steep embankment, causing it to roll down the hill. The tractor came to rest almost upside down. The employee was not wearing the safety belt and his head struck against the rollover protective structure (ROPS). He died from head injuries sustained in the accident. Stay away from steep embankments; never
operate a tractor without wearing a safety belt. |
2. Rear Rollovers
Rear rollovers can occur when a tractor is towing a load that is too heavy or not properly balanced, when driving uphill, or when using an attachment or implement.
Accident Report Employee Killed While Towing With Tractor |
Summary of OSHA Accident Inspection 0950621 An employee was using a tractor to pull a truck out of the mud. The employee attached a chain between the back of the tractor and the truck and attempted to pull the truck with the tractor. The weight of the truck caused the tractor’s front to rise off the ground and roll over backward, landing on top of the employee. His neck was broken and he died at the scene. Do not attempt to pull loads that are
greater than the tractor’s towing capacity. |
3. Front Rollovers
Front rollovers occur most often when an operator fails to stop before a dropoff , or accidentally drives over an embankment.
Accident Report Employee Killed When Tractor Falls Over Ledge |
Summary of OSHA Accident Inspection 125470765 An employee was operating a tractor equipped with a blade attachment. He drove up a ramp which was surrounded by a guard rail. The tractor went through the guard rail and flipped forward over the edge of the ramp. The employee was crushed and killed by the tractor. Avoid operating a tractor close to
ledges; keep away from guard rails. |
How to Avoid Rollover Accidents
Understanding ROPS
Rollover protective structures (ROPS) have been required by law since 1976. However, many tractors built before 1976 are still in use. ROPS are protective frames securely attached to a tractor to prevent the operator from being crushed if the tractor overturns. ROPS will not prevent rollover accidents; however, it will help protect you if a rollover accident occurs.
Not all cab or operator covering structures are ROPS. For example, an awning to protect the operator from the sun is not an approved ROPS structure and provides no protection in a rollover. Certified ROPS must meet strict engineering performance standards. They must support the weight of the tractor and create a protective zone for the operator during a rollover. Typically, ROPS limit overturns to 90 degrees.
Approved ROPS can be:
Carefully check the operator’s manual to learn if the tractor you are operating is equipped with an approved ROPS.
When operating a tractor with ROPS always use your seat belt. If you do not wear your seat belt, ROPS may not protect you from being crushed in a rollover accident.
Safe Hill Operation
Tractors are designed to operate on hills with a grade of 20 percent or less. You can be seriously injured or killed if you operate on a hill with a grade steeper than 20 percent.
Never drive across a hill while operating a tractor. The tractor could become unstable, causing a side rollover.
Never drive with the heavy end of the tractor facing down hill. A rear rollover could result.
Always drive up and down the face of the hill with the heaviest part of the tractor facing uphill. With no attachments, a tractor’s heavy end is the rear.
When operating with a front attachment, drive forward up a hill.
Reaction Time
Reaction time is the time it takes for a person to react to an event or an emergency. A tractor can tip over in ¾ of one second; much faster than human reaction time.
Many factors can affect your reaction time such as:
Recognize these factors and how they affect your ability to react to a potentially dangerous situation.
Quiz Yourself
For answers, click here.
Lesson 4 Avoiding Runover and Collision Accidents.
Objectives
You can be killed or seriously injured if you are run over by a tractor or collide with another object while driving the tractor.
Runover accidents often occur when:
Collisions can occur between the tractor and an unseen object such as a hidden tree stump or rock, or a low-hanging branch or structure. Collisions can cause serious injury or death when:
Operator Runovers and Collisions
the safest place for the operator of a tractor is in the operator’s seat, with the safety belt buckled. You can be seriously injured or killed if you attempt to operate a tractor from the ground or another location on the tractor.
Accident Report Employee Killed When Run Over by Tractor Mower |
Summary of OSHA Accident Inspection 0111700 An employee was using a tractor with a mowing attachment when the right front wheel of the tractor apparently struck an obstacle. The employee was thrown from the tractor and then run over by it. He was killed. The tractor was missing half the safety belt. Be careful to not run over obstacles; never operate a tractor with a broken safety belt. |
Accident Report Employee Killed When Run Over By Tractor |
Summary of OSHA Accident Inspection 0418800 An employee who was operating a tractor stopped, put the tractor in neutral, but did not turn off the engine or set the emergency brake before exiting. The tractor began to roll down an incline, and the employee attempted to mount the moving tractor and was run over by the rear wheel and killed. Always follow safe shut down procedures before exiting the tractor; never mount a moving tractor. |
Accident Report Maintenance Worker Run Over by Tractor |
Summary of OSHA Accident Inspection 170843064 An employee was repairing a broken fl ail mower attachment on a tractor. He was standing in front of the left rear wheel, welding the broken support back together when he reached across to the hydraulic controls and accidentally engaged the transmission. The tractor drive wheel ran over his chest and crushed him. He was killed. The transmission was not in neutral and the brakes were not set. Follow safe shutdown procedures before performing maintenance on the tractor. |
Guide Safety |
|
SAFE GUIDE: The guide is out of the way of the tractor and attached equipment. The operator can drive without endangering the guide. |
UNSAFE GUIDE: The guide is between the tractor and attached equipment, and could be seriously injured or killed if the tractor begins to move. |
No Extra Riders! |
|
Never allow anyone to ride on a tractor unless in an approved passenger carrier. There is not a safe place on the tractor for anyone other than the driver. |
Bystander Runovers and Collisions
Coworkers, maintenance personnel and other bystanders can be seriously injured or killed if safe operating procedures are not followed.
Passenger Runovers and Collisions
Anyone who is not in the driver’s seat of the tractor is in danger of falling and being run over. Human reaction time is too slow for a driver to react if a passenger falls off the tractor.
Watch for Collision Hazards
Check your work area for hidden obstacles such as: rocks, hidden machinery or a tree stump in tall grass.
When driving, make sure you are clear of any low hanging branches, power lines, or structures.
Even though the tractor may fit, double check to make sure attached equipment clears posts, doorways and other obstacles.
Be Aware of Obstacles
When operating a tractor without a cab, you can be crushed or thrown out of the driver's seat if you hit an obstacle or rough surface.
Safe Backing Procedures
Before backing a tractor, make sure the area is clear of people and obstacles.
Quiz Yourself
For answers, click here.
For each pair of drawings, circle the one that shows the operator using safe procedures.
Lesson 5 Moving Parts and Machinery Hazards
Objectives
You can be seriously injured or killed if you or your clothing become caught in a tractor’s moving parts. Entanglements happen in power driven shafts, belts, gears, chains or wheels.
Accident Report Employee Injured In Drive Shaft Of Post Hole Digger |
Summary of OSHA Accident Inspection 119581437 An employee was using a tractor with an attached post hole digger. As the hydraulically controlled auger was being lowered, he used his body weight to push down on the post hole digger. His clothes became caught, entangling him in the driveline shaft and support boom. He was seriously injured. An investigation showed that guards had been removed from the digger that would have protected the employee. Never operate equipment with missing guards or shields. |
The Power Take Off (PTO)
One of the most dangerous power transfer devices on a tractor is the PTO. Maintaining proper machine guards can lower injury risk. A PTO stub rotates either at 540 revolutions per minute (rpm) or 1,000 rpm. You are protected from the rotating stub by the PTO master shield and from the rotating shaft by the PTO integral shield. Report a missing or damaged shield to your supervisor and do not operate the tractor until the shield has been replaced or repaired.
The following safety practices can help prevent the most common types of PTO entanglements:
Keep Clear of a Rotating PTO |
|
Reaction Time | PTO will wrap... |
1/4 of a second | 21 inches, about the length of your shoulder to your fist |
1/2 of a second | 42 inches, about the length of your leg |
3/4 of a second | 64 inches, about the height of an average person |
1 second | 85 inches, about the height of a doorway |
Other Mechanical Hazards
the tractor industry has grouped mechanical hazards into categories: pinch points, wrap points, shear points, crush points, burn points, freewheeling parts, stored energy and thrown objects. Following are eight examples of mechanical hazards with their corresponding warning symbols.
Pinch points are formed when two machine parts move together and at least one of the parts moves in a circle. Examples of pinch points are gear, belt or chain drives. Keep guards and shields in place to protect yourself from pinching injuries.
Wrap points occur when any part of the machine rotates. Loose clothing or hair can easily be caught in rotating mechanical parts. the rotating PTO is one of the most common wrap points. Maintain guards to protect yourself from rotating wrap points. Make sure your shoe laces are tied, and never wear loose fitting clothing.
Shear points occur when the edges of two machine parts move across or close to each other to create a scissors-like area that can cut through skin, clothing and body parts. One of the objects can be stationary or both can be moving. Hedge trimmers are an example of a machine with a shear point. To prevent shearing injuries, shut off the machine before working on it.
Crush points are formed when two objects are moving toward each other or when one object is moving toward a stationary object and the gap between them is getting smaller. the most common example of a crush point is a tractor backing up to be attached to an implement. Do not allow someone to stand between the tractor and an implement while hitching.
Burn points occur where machine parts get hot. Mufflers, engine blocks, pipes and hydraulic fluid couplers are examples of burn points. Avoid burns by not touching the engine or machine parts.
Freewheeling parts continue to move after power to the machine has been turned off . this happens because of the large amount of force required to move mechanical parts. Bringing this force to an immediate stop is almost impossible. To avoid injury from freewheeling parts, stop the tractor engine, disengage the PTO and wait for the machine to stop completely before inspecting
Stored energy is energy that has been confined and is released unexpectedly. Springs and hydraulic systems are examples of potential stored energy. To avoid stored energy hazards, know which parts of the machine are spring loaded. Relieve hydraulic pressure when you shut down each day.
Thrown objects are materials that are discharged from the machine. these hazards can be caused by rotating fan or knife blades used to cut, grind or chop materials, such as a rotary mower. Avoid thrown object injuries by allowing the machine to come to a complete stop before approaching the discharge area. Keep the discharge chute pointed away from bystanders. Wear eye protection to protect yourself from thrown objects. When using a rotary mower attachment, consult your owners manual regarding proper shielding to protect the operator.
Images used in the “Other Mechanical Hazards” section have been recreated from images taken with permission from ASAE S441.4, FEB04, Safety Signs.
If the tractor or attached equipment contacts an electric power source: |
|
Electrical Hazards
When a tractor or attached implement comes into contact with electricity you can be electrocuted. Talk with your supervisor before starting a job that requires work near an electric power source.
Hydraulics Hazards
Hydraulics systems can fail without warning. Do not allow anyone to stand below a raised hydraulic device without proper blocking.
Hydraulic injection injuries are serious: Leaks in hydraulic hoses form a thin, high pressure stream that quickly slices through skin, causing a serious injury called a hydraulic fluid injection. Seek medical attention immediately! A hydraulic fluid injection injury is serious, even if it does not cause a great deal of pain. |
High Pressure Hydraulics
Another way power is transferred from a tractor to an attachment is through hydraulics.
Quiz Yourself
For answers, click here.
Use the list of words to fill in the blanks of the following sentences.
PTO system
toward
entanglements
medical attention
PTO master shield | PTO integral shield |
Lesson 6 Highway Safety and Other Hazards
Objectives
You may be required to move a tractor from one location to another using a public roadway, or you may be required to work near a public roadway. You can be seriously injured or killed if the tractor you are operating is involved in an accident. Since a tractor driver may not be able to hear over engine noise, he or she has to depend on sight alone to be aware of the surroundings. When you must operate a tractor on a public road, remember to obey all traffic laws and signs.
Accident Report Employee Killed When Tractor Flips Over on Public Road |
Summary of OSHA Accident Inspection 300256138 An employee was traveling on a public highway in a tractor pulling a loaded trailer. He was driving downhill too fast and the tractor began to sway. As he attempted to turn left onto the employer’s property, the trailer swayed, causing the tractor to flip over. The employee, who was not wearing a safety belt, was thrown from the tractor and crushed to death when it rolled on top of him. Refer to the tractor operator’s manual for safe highway speed for your model of tractor and attachments. |
Tips for Safe Highway Travel
Slow Moving Vehicle Emblem |
Be Careful on the Road
When traveling on a public roadway, make sure to leave enough room for motorists to get around your vehicle and attachments.
When possible, stay to the right.
Use a transport trailer to move the tractor between job sites instead of driving on a public road, whenever possible.
Towing Attachments and Implement
Working Safely Near Traffic
Health and Environmental Hazards
Heat Stress
You can become seriously ill or die if you do not take proper precautions while working outdoors in high temperature and/or humidity. Heat can reduce physical performance, as well as mental alertness, which can cause serious accidents.
Accident Report Employee Collapses From Heat Stroke, Dies in Grass Fire |
Summary of OSHA Accident Inspection 0950624 An employee was using a tractor to mow grass. Witnesses saw the employee standing behind the tractor at the roadside with his shirt removed, while a slowly-moving grass fire was seen ahead of the tractor. The body of the employee was found on the ground later, severely burned. Investigation revealed that the employee had collapsed due to heat stroke and then the fire passed over him and killed him. Drink plenty of fluid, and seek assistance at the first sign of heat stress. |
Heat illness starts with heat exhaustion, and if not given proper attention, can lead to heat stroke. Take action immediately if you notice anyone with symptoms of heat illness (shown, left).
Avoid Heat Related Illnesses
To help prevent a heat related illness:
In Case of Heat Illness:
Heat Facts
Heat Exhaustion Symptoms
|
Heat Stroke Symptoms
|
Sun Exposure
Prolonged exposure to sunlight causes skin cancer, cataracts and other serious illnesses.
Lightning Safety
When weather turns bad, take cover indoors. Never park your tractor near a tree for shelter.
Lightning Precautions
Lightning strikes injure and kill hundreds of people each year. Follow these precautions to help keep you safe when the weather turns bad.
If You Can't Take Cover Inside:
Keep away from:
If Someone is Struck by Lightning
With immediate treatment, most lightning-strike victims survive. |
Carbon Monoxide
Carbon monoxide (CO) is a colorless, odorless, tasteless gas that can poison and kill. Symptoms of CO poisoning include headache, nausea, weakness, dizziness and the loss of consciousness. To avoid CO poisoning, operate all equipment outdoors. If you must operate a tractor indoors, make sure there is adequate ventilation to prevent exposure to CO.
Cold Induced Injuries and Illnesses
Prolonged exposure to freezing temperatures can result in cold induced injuries and illnesses that can seriously injure or kill you.
Cold temperatures reduce mental alertness and cause fatigue and exhaustion that can lead to accidents.
Frostbite
Frostbite occurs when parts of the body become so cold that the skin and tissue freezes. Frostbite normally occurs on ears, nose, fingers, hands, toes and feet or other parts of the body that are left uncovered in below-freezing temperatures. Frostbitten skin becomes numb and turns a pale white color.
Hypothermia
Hypothermia occurs when a person’s body temperature drops to or below 95º F. Common symptoms include bluish-colored skin, uncontrollable shivering and drowsiness or fatigue.
Avoid Cold-Induced Injuries and Illnesses
Insect Stings
Insect stings can be treated without medical attention unless the person suffers an allergic reaction.
the first step to treating an insect sting is to remove the stinger. this can be done by using a straight edge to scrape off the stinger or by using tweezers to pull it out. If you choose to use tweezers to remove the stinger, use extreme caution to not puncture the protruding venom sac.
After the stinger has been removed, a cold pack can be used during the first 24 hours to suppress pain and swelling. Following the first 24 hours, heat should be applied if pain or swelling persist.
Those with severe allergies to insect stings should consult a physician about carrying a prescription medical kit. the kit contains medicine and instructions to be used if the person is stung. If the kit is used, the victim still must receive medical attention. Call for help or take them to the nearest hospital.
Snake Bites
If you are bitten by a snake, seek medical attention immediately and try to describe the size and color of the snake to the doctor. this can help the doctor determine whether or not the snake was poisonous.
Never cut, suck or apply cold packs to snake bites.
Mammals
Be aware of animals such as squirrels or bats that may be in trees or bushes and startle you during work. Also, be cautious of animals such as rats, skunks and raccoons that could be rabid.
Poison Ivy, Oak and Sumac
Poison Ivy Leaves are usually found in clusters of three. |
Treating Cuts and Burns
Minor cuts and burns can be treated on the job site.
Seek medical attention if:
Treating Cuts
Treating Burns
First Aid Kit Contents
The following is a list of minimum requirements for workplace first aid kits as outlined by ANSI Standard Z308.1-2003*.
*ANSI Z308.1-2003 is published by the International Safety Equipment Association, Arlington, VA www.safetyequipment.org. Used with permission.
Quiz Yourself
For answers, click here.
Use the list of words to complete the following sentences.
pulling
aware
laws
brake pedals
thunder
Under the nearest tree. |
In the nearest shelter. |
You can be killed or seriously injured if you are involved in a tractor accident. Almost all tractor accidents are preventable. By practicing safe work habits, you can prevent tragedy on the job. Take control of your own safety by following the practices outlined in this booklet. Use this information to keep your work experience safe.
Quiz Yourself
For answers, click here.
Use the list of words to complete the following sentences.
slips and falls
drink
speed
right
extra riders
alcohol or drugs
Use the list of words to fill in the blanks of the safe start up procedures.
For each pair of drawings, circle the one that shows the operator using safe procedures.
Use the list of words to fill in the blanks of the following sentences.
PTO master shield | PTO integral shield |
Use the list of words to complete the following sentences.
Use the list of words to complete the following sentences.
Publication #: MF2708
This material was produced under grant number 46G3-HT04 from the Occupational Safety and Health Administration, U.S. Department of Labor. It does not necessarily reflect the views or policies of the U.S. Department of Labor, nor does mention of trade names, commercial products, or organizations imply endorsement by the U.S. government.
This booklet was produced by K-State Research and Extension, Kansas State University, Manhattan, Kansas.
The information in this publication has been compiled from a variety of sources believed to be reliable and to represent the best current opinion on the subject. However, neither K-State Research and Extension nor its authors guarantee accuracy or completeness of any information contained in this publication, and neither K-State Research and Extension or its authors shall be responsible for any errors, omissions, or damages arising out of the use of this information. Additional safety measures may be required under particular circumstances.
Brand names appearing in this publication are for product identification purposes only. No endorsement is intended, nor is criticism implied of similar products not mentioned.
Disclaimer and Reproduction Information: Information in NASD does not represent NIOSH policy. Information included in NASD appears by permission of the author and/or copyright holder. More
Disclaimer and Reproduction Information: Information in NASD does not represent NIOSH policy. Information included in NASD appears by permission of the author and/or copyright holder. More