Hazard Class 5 – Oxidizing Substances & Organic Peroxides
Division 5.1 – Oxidizers
Oxidizers are materials that can, generally by yielding oxygen, cause or enhance the combustion of other materials.
Source: 49 CFR §173.127
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Division 5.2 – Organic peroxides
Organic Peroxides are any organic compounds containing oxygen in a bivalent -O-O- structure and which may be considered derivatives of hydrogen peroxide, where one or more of the hydrogen atoms have been replaced by organic radicals. Refer to §173.128 for exceptions.
Source: 49 CFR §173.128
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