Refrigerant leak rate

{
  "id": "MLC-T-ENV-023555",
  "term": "Refrigerant leak rate",
  "field": "Environment",
  "term_source": "Refrigerant Leak Rate",
  "definition": "1. The rate at which an appliance is losing refrigerant, measured between refrigerant charges. The leak rate is expressed in terms of the percentage of the appliance's full charge that would be lost over a 12-month period if the current rate of loss were to continue over that period. The rate is calculated using only one of the following methods for all appliances located at an operating facility.(1) Method 1. (i) Step 1. Take the number of pounds of refrigerant added to the appliance to return it to a full charge and divide it by the number of pounds of refrigerant the appliance normally contains at full charge;(ii) Step 2. Take the shorter of the number of days that have passed since the last day refrigerant was added or 365 days and divide that number by 365 days;(iii) Step 3. Take the number calculated in Step 1. and divide it by the number calculated in Step 2.; and(iv) Step 4. Multiply the number calculated in Step 3. by 100 to calculate a percentage. This method is summarized in the following formula:[Please see PDF for image: ER11ja05.010](2) Method 2. (i) Step 1. Take the sum of the quantity of refrigerant added to the appliance over the previous 365-day period (or over the period that has passed since leaks in the appliance were last repaired, if that period is less than one year),(ii) Step 2. Divide the result of Step 1. by the quantity (e.g., pounds) of refrigerant the appliance normally contains at full charge, and(iii) Step 3. Multiply the result of Step 2. by 100 to obtain a percentage. This method is summarized in the following formula:[See PDF for image: ER11ja05.011.\n\n2. Rate at which an appliance is losing refrigerant, measured between refrigerant charges. The leak rate is expressed in terms of the percentage of the appliance's full charge that would be lost over a 12-month period if the current rate of loss were to continue over that period. The rate must be calculated using one of the following methods. The same method must be used for all appliances subject to the leak repair requirements located at an operating facility.",
  "subject": "Regulatory activities",
  "references": [
    "40 CFR 82.152 (CFR 2013)",
    "40 CFR 82.152 (CFR 2017)"
  ],
  "url": "https://mlchart.com/terminology/environment/refrigerant-leak-rate/"
}