National Item Identification Number

00-551-1485
005511485
6685-00-551-1485
6685005511485

National Stock Number

Item Name

PSYCHROMETER

Federal Supply Class

6685

Description

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.

Commercial and Government Entity Code (Supplier Data)

---

82187

---

NATIONAL WEATHER SERVICE
DIV OFFICE OF HYDROLOGIC DEVELOPMENT
1325 EAST-WEST HWY 18150
SILVER SPRING
MD
20910
301-713-0640

---

Reference Numbers (Part Numbers)

H001-1

Required Categories

CIRCULATION TYPE
CIRCULATION METHOD
THERMOMETER QUANTITY
OPERATING TEMP RANGE

Required Description

FORCED
HAND SLING
2
-30.0 TO 45.0 DEG CELSIUS
1.0 DEG
PORM 0.2 DEG C ABOVE