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National Stock Number:
6685-00-991-5461
Federal Supply Class:
6685
National Item Identification Number:
009915461
Description:
BAROMETER,MERCURIAL
Detail:
A BAROMETER CONSISTING OF A COLUMN OF MERCURY WHICH RISES AND FALLS WITHIN A TUBE DUE TO VARIATIONS OF ATMOSPHERIC PRESSURE.
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Manufacturer Information:
| 02-380 | 22527 | FISHER SCIENTIFIC COMPANY L.L.C. | | 02-380 | 94480 | FISHER SCIENTIFIC WORLDWIDE | | 2-380 | 22527 | FISHER SCIENTIFIC COMPANY L.L.C. | | 2-380 | 94480 | FISHER SCIENTIFIC WORLDWIDE |
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Techincal Specification:
| CISTERN TYPE | ADJUSTABLE | | FUNCTIONAL DESCRIPTION | ADJUST LEVEL OF MERCURY POOL SO ITS SURFACE JUST TOUCHES THE WHITE ZERO POINTER WHICH FIXES ZERO POINT OF COLUMN; USE SCALE AND VERNIER TO READ COLUMN HEIGHT; MAKE CORRECTIONS FOR TEMP AND GRAVITY AS SHOWN IN INSTRUCTIONS, THIS WILL GIVE TRUE BAROMETRIC PRESSURE AT DESIRED LOCATION | | GRADUATION UNIT | 0.010 INCHES | | OVERALL LENGTH | 42.000 INCHES NOMINAL | | OVERALL WIDTH | 3.000 INCHES NOMINAL | | SCALE RANGE | +25.5 TO 31.7 INCHES ABSOLUTE PRESSURE BELOW BAROMETER | | SPECIAL FEATURES | CAN BE USED UP TO 3000 FT, 900 M, ABOVE SEA LEVEL; DOUBLE SCALE ALSO READS 647 TO 805 MM AT 0.1 MM DIV; DOUBLE SCALED THERMOMETER READS IN C AND F; MERCURY LEVEL AND WHITE ZERO POINTER ARE CLEARLY VISIBLE IN GLASS CISTERN; WHITE BACKING FOR CISTERN AND MENISCUS; UNIFORM BORE 1/4 INCH, 6.4 MM, SO CAPILLARY DEPRESSION IS CONSTANT AND TAKEN INTO ACCOUNT IN CALIBRATION; TUBE IS IN METAL CASING ON 3 BY 42 INCH WOOD PANEL; MERCURY IS INCLUDED | | TUBE BORE DIAMETER | 0.250 INCHES NOMINAL |
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