“Memorize the pictograms” is really the take-home point. To that end, it’s important for people to recognize the distinctions between them. The two groups that I think require particular attention are the three health-related pictograms (human profile, exclamation mark, and skull and crossbones) and the flammables and oxidizers (flame and flame over circle).
Recognizing chemical hazards
Posted by David Bradley on June 14, 2012