Leak Log

Topped off a unit holding 15 lb or more of HFC refrigerant? Since January 1, 2026, 40 CFR 84.106 requires a leak-rate calculation at every addition, a repair and verification tests within 30 days when the rate is over the threshold, and records the owner or operator keeps for three years. Refrigerant Leak Log does the math and keeps the record. • Leak rate by the annualizing or rolling-average method, live as you type lb and oz • Thresholds by appliance type: commercial refrigeration 20%, industrial process 30%, comfort cooling and others 10% • Repair clock: repair + initial verification test (30 days, or 120 with an industrial process shutdown), follow-up test 10 days after a passed initial test • Due list across every customer; chronic-leak (125% a year) and leak-inspection reminders • Records with the 84.106(l) fields: owner/operator, location, parts, service performed, technician, pounds added or removed, leak rate and method, documentation to the owner • PDF proof pack per unit or per owner, CSV of every record • No account, no cloud, no ads. Records stay on your phone until you share them. Free: leak-rate checks and records on up to 3 units. Leak Log Pro (monthly or annual subscription): unlimited units and owners, full history, PDF and CSV, reminders. Reference tool based on 40 CFR 84.106 as of Nov 5, 2026 (eCFR). Not legal advice; verify current regulations. Not affiliated with or endorsed by any government agency. [Minimum supported app version: 1.0.0]

First release: calculate HFC leak rates at every addition, track the 30-day repair and verification clock, and keep 40 CFR 84.106 service records with PDF and CSV export.