What does the Lower Flammability Limit (LFL) represent for an A2L refrigerant?
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A
The minimum concentration of refrigerant in air required to sustain a flame.
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B
The maximum concentration of refrigerant in air that will still ignite.
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C
The minimum temperature at which the refrigerant will autoignite.
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D
The maximum pressure at which the refrigerant can be safely stored.