In a recent Q&A on the FacilityCare website, consultant Brad Keyes answered a question about liquid oxygen transfilling operations.
Q: I have portable liquid O2 canisters that need to be refilled from the portable storage Dewar. Are there any directions for me to follow in the process to refill these canisters?
A: Yes, there are very restrictive directions that you must follow when transfilling liquid oxygen from one container to another. It is very dangerous work, because if liquid oxygen were to be spilled onto a combustible surface, it would lower the flame point of that material to room temperature and actually burst into flames. Even flooring such as PVC tile are a danger because they are combustible.
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