What Are Pictograms

For HCS purposes, a pictogram is a symbol on a white background with a red border that is intended to convey specific information about the hazards of a chemical. For in-plant or workplace labeling only, OSHA says that pictograms may have a black border, rather than a red border. 

The pictograms which appear on the label are determined by the chemical s hazard classification. 

Flame over circle is used to denote oxidizers. 

Flame is used to mark flammables self-reactives, pyrophorics, self-heating substances, substances that emit flammabl gases, and organic peroxides. 

Exploding bomb is used to signify explosives, self-reactives, and organic 

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