Class 5: Oxidizing agents (oxidants)
Classification of hazardous goods
Class 5.1: Oxidation of substances (oxidants)
Substances that lead to risk when combined with oxygen, increasing the risk and intensity of fire. Oxidizer (Division 5.1) is a material that can in general, in conjunction with oxygen, cause or increase the combustion of other materials.
- The solid material is classified as Division 5.1 materials, if during the inspection in accordance with the Manual Tests and Criteria of the UN and its stingy burning time is less than or equal to the burning time of 3:7 mixture of bromate / cellulose potassium.
- Liquid material is classified as Division 5.1 materials, if during the inspection in accordance with the Manual Tests and Criteria of the UN, spontaneously turns, or the average time to increase the pressure from 690 kPa up to 2070 kPa - less time if 1:1 nitric acid (65 percent) / cellulose mixture.
Class 5.2: Organic peroxides
Most of them will burn quickly and are sensitive to an impact or friction. The organic peroxide (Division 5.2) is any organic compound containing oxygen (O) in a dual-OO-structure and which can be considered derivative of hydrogen peroxide where one or more hydrogen atoms have been replaced by organic radicals, unless any of the following paragraphs shall not apply to:
- Materials are defined an explosive as prescribed in subdivision C of this part, when it should be classified as an explosive;
- The material is forbidden to be transported in accordance with 49CFR 172.101 of this subsection or 49CFR 173.21;
- If the representative of the Association of Dangerous Goods decided that the material does not pose a danger, which is associated with Division 5.2 materials, or
- The material meets one of the following conditions:
- For materials containing no more than hydrogen peroxide at 1.0 per cent, available oxygen as calculated using the equation in paragraph (a) (4) (ii) of this section is not more than 1.0 percent, or
- For materials containing hydrogen peroxide to no more than 7.0 percent but more than 1.0 percent.