Commercial and industrial process refrigeration systems must be repaired when the leak rate exceeds ______ percent of the charge per year.

Commercial and industrial process refrigeration systems must be repaired when the leak rate exceeds 30 percent percent of the charge per year.
THIS BECAME EFFECTIVE IN JAN 2019: Leak rates, documentation, and inspection parameters changed. The new leak thresholds are now:
30% for Industrial Process Refrigeration
20% for Commercial Refrigeration
10% for Comfort Cooling
PREVIOUS THRESHOLDS:
35% for Industrial Process Refrigeration
35% for Commercial Refrigeration
15% for Comfort Cooling