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Class-5-Organic-Peroxides-5.2

Published by California Department of Toxic Substances Control | State of California | Metadata Last Checked: July 09, 2025 | Last Modified: 2020-02-06T16:59:06.000Z
<b>Hazard Class 5</b><span style='font-family: &quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size: 16px;'>: Class 5 hazards are oxidizing chemicals that could be prone to combustion. There are two divisions to this class — oxidizers and organic peroxides — marked as 5.1 and 5.2, respectively. Oxidizers are designated with a yellow label, with the hazard class number 5.1 at the bottom and the oxygen logo at the top. Organic peroxides are noted with a half-red and half-yellow truck placard, with a flammable graphic at the top in the red portion. The hazard class No. 5.2 is located at the bottom.</span>

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