How are safety ratings for zeotropic refrigerants different than for compounds?
A) Zeotropic refrigerants are assigned a safety group classification based on the worst case of fractionation.
B) Zeotropic refrigerants use the same rating system as all other refrigerants.
C) They precede the normal letter and number with the letter Z for zeotropic.
D) They follow the normal letter and number rating with the letter Z for zeotropic.
Answer is A. (They list a ratings for the refrigerant as manufacturers flowed by a slash and a rating and a rating for the worst case fractionation)
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