The Engineering Tool Box 210 Www.EngineeringToolBox.com 200 190 PSYCHROMETRIC CHART BAROMETRIC PRESSURE 29.921 inches of Mercury 85 - 1.2 180 45 Og 170 - 1.1 35 WET BULB TEMPERATURE . "F _ 60 150 ENTHALPY . BTU PER POUND OF DRY AIR 35 SATURATION TEMPERATURE . 'F VAPOR PRESSURE - INCHES OF MERCURY ENTHALPY - BTU PER POUND OF DRY AIR HUMIDITY RATIO - GRAINS OF MOISTURE PER POUND OF DRY AIR 30 8 8 45 DEW POINT - F HUMIDIT 10% 106 110 115 120 35 40 70 75 80 85 90 96 100 20 25 DRY BULB TEMPERATURE . "F Linric Company Psychrometric Chart, www.linric.com 30