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A standard cubic foot (scf) is a unit representing the amount of gas (such as natural gas) contained in a volume of one cubic foot at reference temperature and pressure conditions. It is the unit commonly used when following the customary system , a collection of standards set by the National Institute of Standards and Technology .
The IEEE symbol for the cubic foot per second is ft 3 /s. [1] The following other abbreviations are also sometimes used: ft 3 /sec; cu ft/s; cfs or CFS; cusec; second-feet; The flow or discharge of rivers, i.e., the volume of water passing a location per unit of time, is commonly expressed in units of cubic feet per second or cubic metres per second.
≡ 1 atm × 1 cu ft/h = 0.797 001 247 04 W: atmosphere-cubic foot per minute: atm cfm [citation needed] ≡ 1 atm × 1 cu ft/min = 47.820 074 682 24 W: atmosphere-cubic foot per second: atm cfs [citation needed] ≡ 1 atm × 1 cu ft/s = 2.869 204 480 9344 × 10 3 W: BTU (International Table) per hour: BTU IT /h ≡ 1 BTU IT /h ≈ 0.293 071 W
778.2 ft⋅lbf (foot-pounds-force) 5.40395 (lbf/in 2 )⋅ft 3 A Btu can be approximated as the heat produced by burning a single wooden kitchen match or as the amount of energy it takes to lift a one-pound (0.45 kg) weight 778 feet (237 m).
One slug is a mass equal to 32.17405 lb (14.59390 kg) based on standard gravity, the international foot, and the avoirdupois pound. [3] In other words, at the Earth's surface (in standard gravity), an object with a mass of 1 slug weighs approximately 32.17405 lbf or 143.1173 N. [4] [5]
1 pound per square inch (psi) ≈ 6,895 Pa; Torque 1 pound-foot ≈ 1.356 N⋅m; Insulation 1 R-value (ft 2 ⋅°F⋅h/Btu) ≈ 0.1761 R SI (K⋅m 2 /W) Various combination units are in common use; these are straightforwardly defined based on the above basic units. Sizing systems are used for various items in commerce, several of which are U.S ...
cu ft long code "cufoot" outputs cubic foot (and never feet) 1.0 cu ft (0.028 m 3) cubic inch: cuin cu in 1.0 cu in (16 cm 3) Imperial: imperial barrel: impbbl imp bbl 36 imp gal 1.0 imp bbl (160 L; 36 imp gal; 43 US gal) imperial bushel: impbsh imp bsh 8 imp gal 1.0 imp bsh (36 L; 8.0 imp gal; 8.3 US dry gal) impbu imp bu
The specific weight, also known as the unit weight (symbol γ, the Greek letter gamma), is a volume-specific quantity defined as the weight W divided by the volume V of a material: = / Equivalently, it may also be formulated as the product of density, ρ, and gravity acceleration, g: = Its unit of measurement in the International System of Units (SI) is newton per cubic metre (N/m 3), with ...