Which code group applies to R-123?

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Multiple Choice

Which code group applies to R-123?

Explanation:
Code groups categorize refrigerants by safety characteristics—toxicity and flammability—so you know what handling and recovery rules apply. R-123 is a nonflammable, low-toxicity refrigerant, which places it in the nonflammable, low-toxicity category. That is why the option representing that classification is correct. The other groups describe refrigerants with higher toxicity or flammability, which do not apply to R-123.

Code groups categorize refrigerants by safety characteristics—toxicity and flammability—so you know what handling and recovery rules apply. R-123 is a nonflammable, low-toxicity refrigerant, which places it in the nonflammable, low-toxicity category. That is why the option representing that classification is correct. The other groups describe refrigerants with higher toxicity or flammability, which do not apply to R-123.

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