Class 5 – Oxidizing Substances and Organic Peroxides Class 5 is divided into two divisions as follows: Division 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; Division 5.2 Organic peroxides … Continue reading Class 5 – Oxidizing Substances and Organic Peroxides