Filling factors using Refrigerant / H2O density R-12 R-22 R-134a R-404A R-407C R-410A* R-410A R-414b = = = = = = = = 74.36 lb/ft3 66.312 lb/ft3 67.49 lb/ft3 54.08 lb/ft3 61.65 lb/ft3 56.11 lb/ft3 54.68 lb/ft3 67.80 lb/ft3 ÷ ÷ ÷ ÷ ÷ ÷ ÷ ÷ 62.4 lb/ft3 62.4 lb/ft3 62.4 lb/ft3 62.4 lb/ft3 62.4 lb/ft3 62.4 lb/ft3 62.4 lb/ft3 62.4 lb/ft3 = 1.19 = 1.06 = 1.08 = 0.87 = 0.99 = 0.90 = 0.88 = 1.08 •Refrigerant’s density at 130 0F • * R-410A Temperature for Safe Storage is limited to 125 0F Filling Factor X tank WC ( water capacity) = R- 100% Fill Weight Fill Capacity assuming the 50 lb recovery cylinder has a water weight capacity of 47.6 lbs. R-22 R-134a R-404A R-407C R-410A* R-414b 47.6 lb water weight 47.6 lb water weight 47.6 lb water weight 47.6 lb water weight 47.6 lb water weight 47.6 lb water weight x x x x x x 1.06 1.08 0.87 0.99 0.90 1.08 = 50.46 lbs = 51.41lbs = 41.41lbs = 47.12 lbs = 42.84 lbs = 51.41 lbs Filling Factor X tank WC ( water capacity) = R- Fill Weight Multiply calculated weight by .80 to know safe fill weight. Add Tare Weight to safe fill weight for TOTAL CYLINDER WEIGHT DECREASE THE MAXIMUM LBS ON THE CHARTS BY 1-2 LBS FOR 30-50LB TANKS. THIS IS THE MAXIMUM, DO NOT GET CLOSE TO THE MAXIMUM!!!!!