hazard label 2013
TRANSCRIPT
Lab Safety
Hazard Label
The National Fire Protection Association (NFPA) has developed a system to indicate the health, flammability, and reactivity hazards of chemicals. In addition, a special precaution symbol may be used.
Hazard Labels
• The NFPA’s hazard labels are shaped like diamonds. The top section reveals the flammability of a substance. The left section indicates a substance’s health hazards. The right section tells how reactive a substance is with other substances.
Flammability
Health
Reactive
Special Hazard Information
Hazard Label
Hazard Label
4- Extreme Hazard
3- Serious Hazard
2- Moderate Hazard
1- Slight Hazard
0- Minimal Hazard
• Numbers ranging from 0 to 4 are recorded in each of the top three diamonds to indicate how dangerous a substance is. A four is the most dangerous, while zero is the least dangerous.
• The bottom section is for special hazard information. It may be empty, but some symbols that can appear in this section are:
Poisonwww.labeline.com
Corrosivewww.Labeline.com
Reacts with watersafety.science.tamu.edu
Lasers being usedsafety.science.tamu.edu
Goggles neededwww.le.ac.uk
Biohazardsafety.science.tamu.edu
Radioactivesafety.science.tamu.edu
Flammablesafety.science.tamu.edu
Cancer Causingsafety.science.tamu.edu
Electric Shock Warningsafety.science.tamu.edu
safety.science.tamu.edu
Reacts with oxygen to form compounds such as oxides.
Why might this be dangerous?
Explosion Hazardsafety.science.tamu.edu