Study for the EPA Type 2 Test. Explore flashcards and multiple choice questions, with each question offering hints and explanations. Get prepared for your exam!

Multiple Choice

Recovered refrigerants may contain acids, moisture, and ______.

Oil is the contaminant that often accompanies recovered refrigerants. The compressor uses oil for lubrication, and some of that oil travels with the refrigerant as it circulates through the system. When you recover the refrigerant, that oil is pulled out with it, so the recovered material commonly contains oil. This matters because oil can foul filters and separators, degrade the efficiency of reclaiming equipment, and reduce the quality of the recovered refrigerant if not removed. Moisture and acids are also known contaminants, formed when moisture is present and can react with the refrigerant to create acids, but oil is the distinct third contaminant typically listed in this context. Dirt is not a standard contaminant emphasized in this scenario.

Oil is the contaminant that often accompanies recovered refrigerants. The compressor uses oil for lubrication, and some of that oil travels with the refrigerant as it circulates through the system. When you recover the refrigerant, that oil is pulled out with it, so the recovered material commonly contains oil. This matters because oil can foul filters and separators, degrade the efficiency of reclaiming equipment, and reduce the quality of the recovered refrigerant if not removed. Moisture and acids are also known contaminants, formed when moisture is present and can react with the refrigerant to create acids, but oil is the distinct third contaminant typically listed in this context. Dirt is not a standard contaminant emphasized in this scenario.