According to the Chemical Data Guide, what are the flammable limits of ethylene oxide?
Official USCG Answer & Rule Citation
Correct Answer: Option B — 2 - 100%
Ethylene oxide possesses an extraordinarily wide flammable range from 2% to 100% by volume in air. This extreme reactivity allows it to burn or detonate in the absence of atmospheric oxygen, demanding rigorous inerting procedures under 46 CFR.
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