PRESERVATION OF FRUITS AND VEGETABLES 



17 



Follow parallel to the nearest curve as before until the 100 percent 

 relative humidity line is reached. The temperature at this point 

 reads 89° F. 



PELAT/VE HUMID/TV (pEPCENT) 



relative: humidity (percent) 



Figure 4. — Pounds of water vapor per pound of dry air. 



Example: Raising the temperature from 70° F. and 50 percent 

 relative humidity to 150° F. 



440721 °-42 3 



