Pictogram 1: Flame - Self-Reactives
Self-reactive substances are classified under Pictogram 1, the Flame pictogram.
OSHA defines self-reactives as "thermally unstable liquid or solid chemicals liable to undergo a strongly exothermic decomposition even without participation of oxygen (air). This definition excludes chemicals classified under this section as explosives, organic peroxides, oxidizing liquids or oxidizing solids."
A self-reactive chemical is regarded as "possessing explosive properties when in laboratory testing the formulation is liable to detonate, to deflagrate rapidly or to show a violent effect when heated under confinement."
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