Dangerous goods labels class 5.1 - oxidizers, oxidizers are materials that can, generally by yielding oxygen, cause or enhance the combustion of other materials.
Dangerous Goods Labels Class 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structure and which may be considered derivatives of hydrogen peroxide, where one or more of the hydrogen atoms have been replaced by organic radicals.
Hazardous Material Labels Class 5.1 Oxidizing Agent, Oxidizers are materials that can, generally by yielding oxygen, cause or enhance the combustion of other materials.