Precautions when working with refrigerants include ___________
A) Wear safety goggles or a clear face shield and protective clothing (gloves) when working with refrigerants
B) Always be in a well-ventilated shop area when working with refrigerants and avoid small, enclosed areas
C) When refrigerant containers are filled, reserve room is left for expansion and the container is marked with its critical temperature
D) All of the above
D) All of the above
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