Question: r-12 refrigerant cannot exceed what levels of contaminants?
Answer: The contaminants in this recycled refrigerant 12 shall be limited to moisture, refrigerant oil, and noncondensable gases, which shall not exceed the following level: 3.1 Moisture: 15 ppm by weight. 3.2 Refrigerant Oil: 4000 ppm by weight. 3.3 Noncondensable Gases (air): 330 ppm by wright.