5. In this Code, class 5 is divided
into two classes as follows:
Class 5.1 Oxidizing substances
Substances which, while in themselves not necessarily combustible,
may, generally by yielding oxygen, cause, or contribute to, the
combustion of other material. Such substances may be contained in
an article;
Class 5.2 Organic peroxides
Organic substances which contain the bivalent -O-O- structure and
may be considered derivatives of hydrogen peroxide, where one or
both of the hydrogen atoms have been replaced by organic radicals.
Organic peroxides are thermally unstable substances which may undergo
exothermic self-accelerating decomposition. In addition, they may
have one or more of the following properties:
- be liable to explosive decomposition;
- burn rapidly;
- be sensitive to impact or friction;
- react dangerously with other substances;
- cause damage to the eyes.
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