11 10 11 0 5 12 5 12 0 13 5 13 0 5 30 10 15 34 0 0 33 .98 30 .96 14 32 30 90 5 31 30 85 28 ET 5 27 BU LB .92 75 TE 26 M 13 PE RA 70 TU RE 25 20 60 RE TU RA 90% PE 80% RA TU SA ³/kg O .88 20 70 F DR % 40 Y AIR 35 60 % 15 30 10 .86 15 20 % EM TIO ME m 45 15 25 ER JP -K NT 20 VOLU AL PY 50 IFIC TH PEC EN 25 .90 S KG - °C OF DR YA IR -° C 65 55 15 24 25 22 21 20 19 18 20 17 16 15 14 % 5 0 10 5 10 0 95 90 6 DEW POINT - °C .82 8% 20% -1 .80 0 -5 6% ITY UMID IVE H .78 ELAT R 10% 4% .74 .76 -15 11 8 % 0 -10 5 9 1 30 5 -1 5 11 7 0 0 0 11 5 -5 12 12 40 .84 5 5 13 10 5% 10 12 23 10 10 10 0 25 50 % 25 13 W VAPOR PRESSURE - MM OF MERCURY 30 29 HUMIDITY RATIO - GRAMS OF MOISTURE PER KILOGRAM OF DRY AIR 80 14 0 25 85 5 0 4 80 3 -10 2 -20 1 2% 75 -40 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 DRY BULB TEMPERATURE - °C Linric Company Psychrometric Chart, www.linric.com 15 20 25 70 30 35 40 45 50 55 60 65 ENTHALPY - KJ PER KG OF DRY AIR BAROMETRIC PRESSURE 760 mm of Mercury .94 95 PSYCHROMETRIC CHART