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NATE: Refrigerant Types and Properties - R-22, R-410A and Beyond
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Avg score: 57% • Most missed: “ODP refers to:”

Refrigerants are classified by chemical family, pressure characteristics, ODP (Ozone Depletion Potential), and GWP (Global Warming Potential). Modern EPA focus emphasizes low-ODP and lower-GWP alternatives.
 

Key comparisons:
• R-22: HCFC, phased out (high ODP)
• R-410A: HFC blend, higher pressure than R-22, zero ODP but higher GWP
• A2L refrigerants: mildly flammable, lower GWP replacements emerging

Related: NATE: EPA 608 Core Concepts - Sections, Types and Responsibilities

NATE: Refrigerant Types and Properties - R-22, R-410A and Beyond
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8 Questions

1. ODP refers to:
2. Retrofit from R-22 requires:
3. POE oil is commonly associated with:
4. R-410A systems operate at pressures generally:
5. R-410A systems operate at pressures generally:
6. R-22 is classified as:
7. A2L refrigerants are classified as:
8. POE oil is commonly associated with:

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