These lab safety signs in Adobe Acrobat format can be printed and posted in your laboratory facilities. N.B. It is preferable to print these signs with a color printer. Please email ehs [at] mcgill.ca (EHS) if you wish to have these signs printed as adhesives.
For resizable images (where available) click on thumbnail image on the left.
Resizable images
To use the resizable version of the images click on the thumbnail image on the left and copy the image, paste it into your word processor where it can be resized.
Radiation:
Class 3B Lasers:
Danger - Visible and/or Invisible Laser Radiation Sign- Danger - Invisible Radiation Sign
- Danger - Laser Radiation Sign
- Caution - Class 3B Enclosed Sign
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Class 4 Lasers:
- Danger - Visible and/or Invisible Laser Radiation Sign
- Danger - Invisible Radiation Sign
- Danger - Laser Radiation Sign
- Notice - Laser Repair in Progress Sign
- Caution - Class 4 Enclosed Sign
WHMIS 2015 Pictograms:
- Available to download directly from