Master ASU ARS445 History Of Animation Exam 2

What characteristic most directly distinguishes an A2L refrigerant from an A1 refrigerant?

It is always a hydrocarbon It has lower flammability rather than no flame propagation It has higher toxicity It cannot be recovered

Correct Answer:

It has lower flammability rather than no flame propagation

Explanation:

A1 refrigerants have no flame propagation under the classification test, while A2L refrigerants are mildly flammable and require ignition-control precautions.

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