These pictogram labels conform to the labeling and hazard communication requirements of the Globally Harmonized System (GHS) which is now part of 29 CFR 1910.1209, OSHA's Hazard Communication Standard. These high gloss self-adhesive paper labels apply easily to metal and plastic containers and are available in four sizes. The 0.5" and 1" labels come in perforated pads of 1,820 and 1,120 identical labels, respectively. The 2" and 4" labels come in rolls of 500.
This older biohazard symbol is not formally part of the GHS, but folks still use it so we're including it here. The symbol indicates biological hazards, examples of which are microrganisms, viruses, bacteria, and biological toxins. For more information on GHS pictograms see ILPI's GHS Pictogram Page