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- : SUB_CAL unit and constant file v.2.00. 9 September 1991
-
- : Maximum number of constants (convertible or not) is 10.
- : Maximum number of unit categories: 5.
- : Maximum number of units per category: 10.
-
- : Category names are preceded with a *.
- : Name lengths are limited to 16 characters.
- : Empty lines and lines starting from : are ignored.
-
- : Non-convertible constants, preceded by a "#" :
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- #electron [C] = 1.6021892E-19
- #Planck h [J*s] = 6.126176E-34
- #Avogadro[1/kmol]= 6.022045E26
- #Grav. [N*m²/Kg²]= 6.6720E-11
- #Boltzmann [J/K] = 1.380662
- #Rydberg [1/m] = 1.097373177
-
- : Units and convertible constants:
-
- * Area
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- sq.meters = 1
-
- acres = 4.046856E3
- hectares = 1E4
- sq.centimeters = 1E-4
- sq.inches = 6.4516E-4
- sq.kilometers = 1E6
- sq.miles = 2.589988110336E6
- sq.feet = 9.290304E-2
- sq.yards = 0.83612736
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- * Energy
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- joules = 1
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- calories (int) = 4.1868
- ergs = 1E-7
- electron-volts = 1.6021892E-19
- kilowatt-hours = 3.6E6
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- * Length
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- meters = 1
-
- centimeters = 0.01
- feet (int) = 0.3048
- inches = 0.0254
- miles (stat) = 1609.344
- miles (naut) = 1852.0
- yards = 0.9144
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- * Mass
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- kilograms = 1
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- grams = 1E-3
- pounds (avd) = 0.4535924
- ounces (avd) = 2.8349525E-2
- tons (metric) = 1000.0
- tons (long) = 1016.047
- tons (short) = 907.1847
- #electron mass = 9.109534E-31
- #proton mass = 1.6726485E-27
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- * Volume
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- cu.meters = 1
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- barrels (oil) = 0.158987294928
- bushels = 0.03523907
- cu.inches = 1.6387064E-5
- cu.feet = 0.028316846592
- gallons (US) = 3.785412E-3
- liters = 0.001
- ounces (US fl) = 2.957353E-5
- pints (US dry) = 5.506105E-4
- pints (US liq) = 4.731765E-4
- quarts (US dry) = 1.101221E-3
- quarts (US liq) = 9.463529E-4
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