Quantcast Figure 3-17. Examples of hazardous materials warning placards

 

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Oxidizers - Items with this placard readily yield oxygen and will greatly accelerate burning. In
the event of spill, these materials must not be allowed to come in contact with combustible or
flammable materials, corrosive materials, or organic matter. Water can be used to fight fires
involving liquid oxidizers. Wet dirt or sand should be used to fight fires involving solid oxidizers.
Organic Peroxides - Items with this placard are strong oxidizing agents. In addition, when
heated or subjected to strong shocks, organic peroxides can decompose rapidly with explosive
force. Care must be taken to avoid contamination of organic peroxides by other chemicals as
violent chemical reactions can occur.
Oxygen - Items with this placard, refrigerated liquid oxygen, if allowed to come in contact with
combustible or oxidizing materials may result in rapid combustion or explosion. Sources of
ignition, sparks, impacts, friction, or sudden shocks should be prevented in the spill area. Contact
with the liquid can result in severe frostbite.
Nonflammable Gas - Items with this placard are gases that can cause suffocation by displacing
oxygen. They may be toxic or irritating; and contact with the liquid may cause frostbite injuries.
Containers that are exposed to flame impingement or intense heat may rupture violently, hurling
fragments great distances. An evacuation distance of 1/2 mile is recommended.
Figure 3-17. Examples of hazardous materials warning placards.
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