| 21. | Poop-Freeze is nonflammable, contains no CFC's and is safe when used as directed.
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| 22. | The NT LZ NO7 is inflated with nonflammable helium instead of hydrogen, which caused the Hindenburg disaster.
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| 23. | Early models were often filled with highly flammable substances, though the fluid in later versions is nonflammable.
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| 24. | From that moment on, things went downhill for hydrogen airships, with designers quickly switching to nonflammable helium.
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| 25. | Once, CFCs were thought of as miracle substances _ cheap to produce, nonflammable and non-toxic.
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| 26. | :Well, it's completely nonflammable in the absence of oxygen, so why not use that?
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| 27. | The new model is filled with nonflammable helium instead of the dangerous hydrogen that doomed the first generation of airships.
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| 28. | Candles should always be held firmly in a nonflammable holder and should be lit only when people are in the room.
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| 29. | :: Also, in the presence of pure oxygen, many normally nonflammable things become flammable, like human flesh.
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| 30. | The other will recommend the installation of a nonflammable barrier between the cargo control unit and the Mylar-covered insulation blanket.
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