National Stock Number:
6685-99-220-4979
Federal Supply Class:
6685
National Item Identification Number:
992204979
Description:
PSYCHROMETER
Detail:
AN INSTRUMENT THAT SENSES, MEASURES, AND INDICATES THE AMOUNT OF RELATIVE HUMIDITY IN THE ATMOSPHERE. IT CONSISTS OF TWO LIQUID-IN-GLASS THERMOMETERS, ONE OF WHICH IS EQUIPPED WITH A WICK. AIR MOVEMENT (ASPIRATION) IS EFFECTED BY SLINGING THE INSTRUMENT ABOUT, BY USE OF BLOWER, FAN OR THE LIKE; OR THE INSTRUMENT MAY BE USED WITH NO FORCED CIRCULATION OF AIR.
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