1. www.jst.umn.edu Know your hazards An overview of chemical hazards and the associated pictograms

2. www.jst.umn.edu Physical Hazards OSHA, Globally Harmonized System of Classification and Labeling of Chemicals (GHS) http://www.osha.gov/dsg/hazcom/ghs.html#4.2 OxidizersFlammable gases, solids, liquidssolidliquid, gas Also can denote: Pyrophorics, Emits flammable gas, and Self reactive

3. www.jst.umn.edu Physical Hazards OSHA, Globally Harmonized System of Classification and Labeling of Chemicals (GHS) http://www.osha.gov/dsg/hazcom/ghs.html#4.2 ExplosivesGases under pressure Corrosives Also can denote: Self reactives and organic peroxides

4. www.jst.umn.edu Physical Hazards OSHA, Globally Harmonized System of Classification and Labeling of Chemicals (GHS) http://www.osha.gov/dsg/hazcom/ghs.html#4.2 Reactive with Water (emit flammable gases when wet) Pyrophoric (spontaneously combustible) Organic Peroxides

5. www.jst.umn.edu Health Hazards OSHA, Globally Harmonized System of Classification and Labeling of Chemicals (GHS) http://www.osha.gov/dsg/hazcom/ghs.html#4.2 Carcinogen Respiratory Sensitizer Reproductive Toxin Organ Toxicity Mutagenicity Acute Toxicity (severe) Irritant Dermal Sensitizer Narcotic Effects

6. www.jst.umn.edu Health Hazards OSHA, Globally Harmonized System of Classification and Labeling of Chemicals (GHS) http://www.osha.gov/dsg/hazcom/ghs.html#4.2 Acute Oral Toxicity Categories The pictogram, signal words, and hazard statements on chemical labels are defined by the median lethal dose (LD 50 ) of the chemical.

7. www.jst.umn.edu Environmental Hazards OSHA, Globally Harmonized System of Classification and Labeling of Chemicals (GHS) http://www.osha.gov/dsg/hazcom/ghs.html#4.2 Environmental toxicity Marine pollutant Ozone depleting

8. www.jst.umn.edu Hazard Diamond for labeling chemical containers 8

9. www.jst.umn.edu A quiz: What does each symbol signify? 9

10. www.jst.umn.edu A quiz: What does each symbol signify? 10 Toxic FlammableOxidizerExplosive Corrosive Irritant Carcinogen (and Respiratory Sensitizer) Environmental Hazard