EPA Leak-Rate Calculator (40 CFR Part 82 Subpart F & Part 84 Subpart C)

Inputs

Program (select)

Appliance Category (select)

Full Charge (lb)

Method (select)

Lbs Added (this event)

Days Since Last Addition (Annualizing only)

Sum Lbs Added Last 365 Days (or since last successful follow-up verification test)

Total Added This Calendar Year (for ≥125% annual loss check)

Outputs

Leak Rate (%)

20.3%

Applicable Trigger (%)

10.0%

Trigger Exceeded?

YES

Required Action

Repair required within 30 days (or 120 days if process shutdown) and perform verification tests per 40 CFR §82.157(d)-(f).

Annual Loss Check (≥125% of full charge)

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References (clickable):

Disclaimer: This tool summarizes federal rules as of Sep 2025 for convenience only. Consult the eCFR links above for controlling text.