Question

question 21
epa regulations require that all industrial process refrigeration (ipr) systems containing more than 50 pounds of refrigerant must be repaired when the annual leak rate exceeds;
a 10%
b 20%
c 30%
d 40%

Explanation:

According to EPA regulations, industrial process refrigeration (IPR) systems with more than 50 pounds of refrigerant must be repaired when the annual leak - rate exceeds 30%. This is a regulatory standard for environmental and safety reasons.

Answer:

C. 30%