Ethylene oxide has a lower explosive limit of 2.0% and an upper explosive limit of 100% by volume in air. This means __________.

Official USCG Answer & Rule Citation

Correct Answer: Option B — there is no possible ethylene oxide concentration in air which is too rich to burn

Under USCG National Maritime Center examination standards, the accepted correct answer is: there is no possible ethylene oxide concentration in air which is too rich to burn.

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