Lesson 1,
Topic 1
In Progress
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Class 5 – Oxidizing substances and Organic Peroxide
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- There are two divisions in Class 5
- 5.1 Oxidizer
o Can cause or contribute to the combustion of other material by yielding oxygen even if the product itself is not combustible
o Packing Group Criteria can be found in TDGR 2.25
- 5.2
o Thermally unstable organic compounds that contain the bivalent “-O-O-“ chemical bond
o Liable to self-accelerating chemical separation that produces heat (exothermic decomposition)
o May have one or more of the following characteristics:
– Burns rapidly
– Sensitive to impact or friction
– Reacts dangerously with other substances
– Liable to explosive decomposition
– Causes damage to the eyes
o No Packing Groups assigned for air transport
o TDGR 2.25 (3) Class 5.2 are assigned to PG II for surface transport
