EPISODE · Jul 9, 2014 · 3 MIN
What do those diamond-shaped signs on buildings mean?
from BrainStuff · host iHeartPodcasts
The National Fire Protection Agency, or NFPA, uses these signs to indicate hazardous materials stored in an unknown building. Listen in to learn how the signs work -- and how they help firefighters -- in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.
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What do those diamond-shaped signs on buildings mean?
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