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Expand Up @@ -25,19 +25,19 @@ An IfcConversionBasedUnit is used to define a unit that has a conversion rate to
|'pint US'|Volume measure equal to 0.000473 cubic meters|
|'gallon UK'|Volume measure equal to 0.004546 cubic meters|
|'gallon US'|Volume measure equal to 0.003785 cubic meters|
|'degree'|Angle measure equal to π/180 rad|
|'degree'|Plane angle measure equal to π/180 rad|
|'ounce'|Mass measure equal to 28.35 g|
|'pound'|Mass measure equal to 0.454 kg|
|'ton UK'|Mass measure equal to 1016.0469088 kg, also known as long ton, gross ton, shipper's ton|
|'ton US'|Mass measure equal to 907.18474 kg, also known as short ton, net ton|
|'lbf'|Force measure equal to 4.4482216153 N, pound-force|
|'kip'|Force measure equal to 4448.2216153 N, kilopound-force|
|'psi'|Pressure measure equal to 6894.7572932 Pa, pound-force per square inch|
|'ksi'|Pressure measure equal to 6894757.2932 Pa, kilopound-force per square inch|
|'lbf'|Force measure equal to 4.4482216153 N, also known as pound-force|
|'kip'|Force measure equal to 4448.2216153 N, also known as kilopound-force|
|'psi'|Pressure measure equal to 6894.7572932 Pa, also known as pound-force per square inch|
|'ksi'|Pressure measure equal to 6894757.2932 Pa, also known as kilopound-force per square inch|
|'minute'|Time measure equal to 60 s|
|'hour'|Time measure equal to 3600 s|
|'day'|Time measure equal to 86400 s|
|'btu'|Energy measure equal to 1055.056 J, British Thermal Unit|
|'btu'|Energy measure equal to 1055.056 J, also known as British Thermal Unit|

Table 1 — Standard unit names

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