Which substance is considered excluded from Section 608 refrigerant management requirements?

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Multiple Choice

Which substance is considered excluded from Section 608 refrigerant management requirements?

Explanation:
Section 608 rules apply to refrigerants actually used in cooling equipment and require proper recovery and handling to prevent emissions. Substances that aren’t refrigerants aren’t subject to these requirements. Water, nitrogen, and carbon dioxide aren’t used as refrigerants in standard HVAC/refrigeration systems, so they’re excluded from Section 608. Ammonia, on the other hand, is a real refrigerant (R-717) and would be covered by these rules, which helps explain why the excluded trio is the correct choice.

Section 608 rules apply to refrigerants actually used in cooling equipment and require proper recovery and handling to prevent emissions. Substances that aren’t refrigerants aren’t subject to these requirements. Water, nitrogen, and carbon dioxide aren’t used as refrigerants in standard HVAC/refrigeration systems, so they’re excluded from Section 608. Ammonia, on the other hand, is a real refrigerant (R-717) and would be covered by these rules, which helps explain why the excluded trio is the correct choice.

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