Question

All CFC, HCFC, and HFC refrigerant recovery devices must ________.

a) be approved by the EPA
b) be color-coded
c) be used only indoors
d) have a built-in refrigerant identifier

Answer 1

All CFC, HCFC, and HFC refrigerant recovery devices must be approved by the EPA to ensure they adhere to environmental and safety standards.

Step-by-step explanation:

All CFC, HCFC, and HFC refrigerant recovery devices must be approved by the EPA. Chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), and hydrofluorocarbons (HFCs) are substances that were commonly used in refrigeration systems. They are known for their damaging effects on the ozone layer, leading to their regulation under international agreements such as the Montreal Protocol. The most well-known HCFCs include hydrochlorofluorocarbon-22 (HCFC-22), hydrochlorofluorocarbon-123 (HCFC-123), and hydrochlorofluorocarbon-124 (HCFC-124). To mitigate their environmental impact, recovery devices for these refrigerants must be EPA-approved to ensure they meet safety and environmental standards.