Environmental Health and Safety provides the following safety posters for use by the campus community. Contact EHS (402-472-4925 or ehs@unl.edu) with the titles(s) wanted and the number of each you would like to receive.  We will send you as many posters as you want at no charge.  The posters provided by EHS are professionally printed on poster stock.

If you prefer to print your own safety posters, provide an email address along with the title(s) you want to receive in PDF format and we will send a file to you via UNL Box.  

Title: Too Many Wires Cause Electrical Fires

  • NEVER exceed the rated loads for power strips.
  • AVOID plugging appliances with heating elements into power strips.
  • NEVER use multi-plug adapters that do not have integrated surge suppressors.
  • ONLY use extension cords on a temporary basis.

Title: When it's HOT...

  • ACCLIMATE. Increase exposure and workload gradually.
  • APPROPRIATE CLOTHING.  Light, loose clothing.
  • HYDRATION.  Drink 6-8 ounces water before working in heat and 8 ounces every 20 minutes.  
  • ADEQUATE REST PERIODS.  Work at a steady pace.  Take breaks in a cooler or shady area if possible.  
  • JOB ROTATION.  When possible, rotate tasks between two or more employees.
  • EDUCATION.  Know how heat stress manifests and proper actions to take for each.

Water is Essential!

Title: Good Housekeeping = Safe Science

  • Keep benches free of clutter and hazardous residues.
  • Clean up spills immediately.
  • Pick up lab debris and trash on the floor.* Maintain safe exit routs.
  • Keep emergency eyewashes and showers accessible.
  • Keep biohazard and RAM waste separate from regular trash.

* Custodial Services DOES NOT clean up unidentified spills in labs and WILL NOT sweep up lab debris (e.g., pipette tips, paper, tubes, etc.) on the floor.  


Title: Safe Winter Walking (Exiting Vehicle)

  • Maintain three points of contact when stepping out of higher vehicles (trucks, SUVs, etc.)
  • Use the vehicle for support
  • Do not grab objects as you are exiting - Exit vehicle then retrieve items

Title: Safe Winter Walking (Entering Buildings)

  • Wipe your shoes on mats
  • Watch for melted snow and ice
  • Remove traction cleats when entering a building

Title: Safe Winter Walking (Steps)

  • Wear proper footwear
  • Maintain your center of balance
  • Take steps slowly
  • Use hand rails
  • Avoid talking on cell phones

Title: Disposal of Biohazardous Waste Bags


  • Bag loosely closed
  • Autoclave tape used in "X" pattern
  • Place in tub
  • Use Proper autoclave cycle


  • Carefully remove from autoclave with heat resistant gloves
  • Look for color change on autoclave tape
  • Allow to cool
  • Clean up any spills


  • Place autoclaved bag in BLACK trash bag*
  • Dispose in dumpster

*Black trash bags are provided by user

poster describing proper liquid nitrogen usage and safety

Title: Liquid Nitrogen Safety

  • 22 or 230 psi
  • Verify proper pressure relief valve setting
  • If fitting won't connect it's the WRONG fitting
  • Use proper PPE when operating valves
  • Use/store in a well-ventilated area
  • Transport cylinder safely
poster describing what a spill kit is and the location of said kit

Title: Spill Kit

  • Personal Protective Equipment (PPE)
  • Diking/Absorbent Materials
  • Collection equipment (hand broom, etc.)
  • Collection Container
  • Diinfectant if necessary
Kit Location:                                                               
poster describing autoclaving biohazardous waste bags and how to properly prepare them

Title: Autoclaving Biohazardous Waste Bags

  • Biohazard bag not overfilled (<3/4 full)
  • Seal Loosely
  • Proper placement of indicator tape
  • Secondary containment
  • Bag is upright
poster describing how to properly dispose different types of batteries

Title: Battery Disposal

  • Universal Waste batteries - insulate terminals before placing into collection container
  • Lead Acid - Trade in or Tag for EHS collection
  • ONLY alkaline batteries may go into regular trash
poster describing how to dispose glass properly

Title: Glass Disposal

  • No glass to regular trash
  • All glass to rigid container, sealed, labeled
poster explaining different types of gloves to protect yourself against chemicals

Title: Fits Like A Glove

  • Your Hands are the Most Exposed to Chemicals
  • Know Which Type to Use
  • Brands Vary. Check Manufacturer Recommendation
posters warning of germs and contamination that could get on your cellphone if you use it in the lab

Title: Don't Take Your Work Home With You

  • You Cannot See Germs/Other Contamination
  • Avoid Cell Phones and Other Personal Electronic Devices in the Laboratory
  • Remove Gloves, Wash Hands, Then Use Device
Safe Needle Recapping Poster discussing about not recapping needles unless absolutely necessary

Title: Safe Needle Recapping

  • Safety needles
  • Needle recapping device
  • One-handed recapping technique
Hydrofluoric Acid Hazards Posters showing disastrous effects of coming into contact with Hydrofluoric Acid

Title: Hydrofluoric Acid Hazards

  • Skin contact can be fatal
  • Can deeply penetrate skin. Symptoms can be delayed 24 hours
  • Keep calcium gluconate (not outdated) available.  Apply immediately after exposure
  • Medical evaluation necessary for all exposures
  • Wear PPE (exposed skin, face, eyes)
  • Verify gloves are appropriate and free of pin holes

Title: Near Miss...Near Hit?

  • How to access the Student Injury Reporter Link on the EHS web site
  • How to access the Employee Near-Miss/Close Call Reporting System on the EHS web site
Image of Hazard Symbols poster

Title: Globally Harmonized System

Text: GHS Pictograms and Hazards

  • Contact EHS at (402) 472-4925 for questions or comments
  • QR code included to access additional information
Image of Biohazard program poster reminding readers to keep an up to date inventory of what is in the freezer

Title:  EHS Biosafety Program

Text:  What's in your freezer?

  • Clean out your freezer while updating your inventory
  • Contact EHS at (402) 472-4925 for assistance with disposal of unwanted or abandoned biological materials
Poster for No personal protective equipments outside the lab poster

Title:  No PPE outside of the lab!

Text:  Be considerate of others

Never wear personal protective equipment (PPE) in public spaces (hallways, restrooms, offices, etc.)

Image of we can do better poster

Title:  Chemical Containers/Inventory


  • Actively manage your chemical inventory
  • Dispose of time sensitive materials before they become a problem and greater expense
  • Need help?  Just let us know!
Poster of Excellence Happens safely with two individuals pictured conversing in a lab environment

Title:  Excellence Happens


  • Know the hazards of your work
  • Plan to mitigate the risks
  • Wear appropriate lab attire
  • Observe good housekeeping
  • Promote safe behaviors in others
Image of Eye injury prevention poster with a injured eyeball

Title:  Eye Injuries


  • Wear ANSI Z87 approved eye protection at all times
  • When additional protection is required, substitute chemical splash goggles for safety glasses - then add a face shield
Image of flourescent materials safety poster

Title:  Fluorescent Materials


Any work with GFP or other fluorescent molecules introduced into microorganisms needs to be registered with the biosafety committee

Image of Safety gloves poster

Title:  Gloves - Replace


Unsure what glove is best for your needs? Simply contact EHS or the glove manufacturer for assistance

Image of safer science lab attire poster

Title:  Safer Science (Lab Attire)


  • Restrain long hair
  • ANSI Z87 approved eye protection
  • Flame-resistant (FR) lab coat
  • ANSI approved hand protection
  • Long pants
  • Fully enclosed shoes
Image of Never work alone safety poster

Title:  Working Alone


  • Do you have permission to be alone in the lab?
  • Does someone know where you are & when you will return?
  • How would you handle an emergency?
  • Please avoid working alone with dangerous chemicals, equipment, processes or energies--especially at night, when tired or under stress.