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Weights & Measurements

Basic Units and Metric Units of measurement.

PREFIX SYMBOL MULTIPLE
mega- M x 1,000,000
kilo- k x 1,000
hecto h x 100
deka- da x 10
PREFIX SYMBOL MULTIPLE
deci- d x 1/10
centi- c x 1/100
milli- m x 1/1,000
micro- u x 1/1,000,000
 
BASIC UNITS OF MEASUREMENTS
Linear meter
Volume liter
Weight gram
International units IU or U based on #/ml
Whole Blood 1 unit = 500 mls.
Equivalents mEq (Elect. charge)
METRIC UNITS OF LENGTH
1 LIGHT YEAR: 9.46 X 10 KILOMETERS
1 KILOMETER (km): 1,000 METERS
1 METER (m): 100 CENTIMETERS
1 METER (m): 1,000 MILLIMETERS
1 MICRON: 1,000 MILLIMICRONS
1 MILLIMICRON: 10 ANGSTROMS (A)
 
METRIC UNITS OF WEIGHT
1 metric ton = 1,000 kilograms
1 kilogram (kg) = 1,000 grams
1 gram (gm) = 1,000 milligrams
1 milligram (mg)= 1,000 micrograms
METRIC UNITS OF VOLUME
1 megaliter = 1,000 kiloliters
1 kiloliter = 1,000 liter
1 liter (l.) = 1,000 milliliters
1 milliliter = 1,000 microliters
 
GENERAL RELATIONSHIP BETWEEN UNITS
1 gram of water = 1 milliliter = 1 cubic centimeter at 25°C
 
CONVERSION TABLE FOR COMMON U.S. AND METRIC MEASUREMENTS
1 inch = 2.54 centimeters
1 liquid ounce = 29.58 (30) milliliters = 1 Fluid oz
1 meter = 1.0936 yards
1 kilogram = 2.204 pounds
1 liter = 1.0567 quarts
1 cubic meter = 1.3080 cubic yards
1 hectare = 2.4711 acres
10,000 meters = 1 hectare
1.609 kilometer = 1 mile
1 lb. = 454 gram
1 grain (gr) = 65 mg (60 mg for Ntg and narcotics)
1 tablespoon = 15 ml = 1/2 fluid ounce
1 teaspoon = 5 ml
1 pint = 473 ml
1 quart = 946 ml
 
TEMPERATURE
C = 5/9 (F - 32)
F° = C° 9/5 + 32
98.6°F = 37°C = 310°K
32°F = 0°C = 273°K
PRESSURE
1 mm Hg = 1 Torr.
1 Atmosphere = 760 mm Hg.
1 Atmosphere = 14.696 lbs/sq in
1 mm Hg = 13.6 mm H20 = 1.36 cm H20
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