001 0 ` Dry-Bulb 20 Temperature F 25 30 35 40 Below 32 F, properties and enthalpy deviation lines are for ice. 004 Btu 0.2 Btu ` 12.5 Wet-Bulb Dewpoint or Saturation Temperature F. 015 60 % OF D UN PE tu TU 2B -B -.08 Btu -.06 Btu -.04 Btu -.0 LP Y -0.3 Btu - Enthalpy deviation Btu per pound of dry air R PO IR RY A LB. Pounds of moisture per pound of dry air ` Grains of moisture per pound of dry air ` PSYCHROMETRIC CHART Normal Temperature I-P Units SEA LEVEL 180 BAROMETRIC PRESSURE: 29.921 in.
