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04-02-2024
Chemistry

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What is the safest rating of a refrigerant according to the ASHRAE scale?
a. A-1 is considered the safest refrigerant while B-3 is the least safe
b. B-1 is considered the safest refrigerant while A-3 is the least safe
c. B-3 is considered the safest refrigerant while A-1 is the least safe
d. None of the above.

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