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Torr

Index Torr

The torr (symbol: Torr) is a unit of pressure based on an absolute scale, now defined as exactly of a standard atmosphere (101.325 kPa). [1]

24 relations: Absolute scale, Atmosphere (unit), Barometer, Centimetre of water, Conversion of units, Evangelista Torricelli, Foot–pound–second system, Inch of mercury, International System of Units, Letter case, Meteorology, Metric prefix, Metrology, Milli-, Millimeter of mercury, Outline of the metric system, Pascal (unit), Pressure, Pressure head, Repeating decimal, SI derived unit, Standard gravity, Tesla (unit), Unit of measurement.

Absolute scale

An absolute scale is a system of measurement that begins at a minimum, or zero point, and progresses in only one direction.

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Atmosphere (unit)

The standard atmosphere (symbol: atm) is a unit of pressure defined as.

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Barometer

A barometer is a scientific instrument used in meteorology to measure atmospheric pressure.

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Centimetre of water

A centimetre of water (US spelling centimeter of water, abbreviated cm or cm H2O) is a less commonly used unit of pressure derived from pressure head calculations using metrology.

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Conversion of units

Conversion of units is the conversion between different units of measurement for the same quantity, typically through multiplicative conversion factors.

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Evangelista Torricelli

Evangelista Torricelli; 15 October 1608 – 25 October 1647) was an Italian physicist and mathematician, best known for his invention of the barometer, but is also known for his advances in optics and work on the method of indivisibles.

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Foot–pound–second system

The foot–pound–second system or FPS system is a system of units built on three fundamental units: the foot for length, the (avoirdupois) pound for either mass or force (see below), and the second for time.

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Inch of mercury

Inch of mercury (inHg and ″Hg) is a unit of measurement for pressure.

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International System of Units

The International System of Units (SI, abbreviated from the French Système international (d'unités)) is the modern form of the metric system, and is the most widely used system of measurement.

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Letter case

Letter case (or just case) is the distinction between the letters that are in larger upper case (also uppercase, capital letters, capitals, caps, large letters, or more formally majuscule) and smaller lower case (also lowercase, small letters, or more formally minuscule) in the written representation of certain languages.

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Meteorology

Meteorology is a branch of the atmospheric sciences which includes atmospheric chemistry and atmospheric physics, with a major focus on weather forecasting.

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Metric prefix

A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple or fraction of the unit.

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Metrology

Metrology is the science of measurement.

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Milli-

Milli- (symbol m) is a unit prefix in the metric system denoting a factor of one thousandth (10−3).

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Millimeter of mercury

A millimeter of mercury is a manometric unit of pressure, formerly defined as the extra pressure generated by a column of mercury one millimetre high and now defined as precisely pascals.

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Outline of the metric system

The following outline is provided as an overview of and topical guide to the metric system: Metric system – various loosely related systems of measurement that trace their origin to the decimal system of measurement introduced in France during the French Revolution.

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Pascal (unit)

The pascal (symbol: Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus and ultimate tensile strength.

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Pressure

Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.

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Pressure head

In fluid mechanics, pressure head is the internal energy of a fluid due to the pressure exerted on its container.

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Repeating decimal

A repeating or recurring decimal is decimal representation of a number whose digits are periodic (repeating its values at regular intervals) and the infinitely-repeated portion is not zero.

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SI derived unit

SI derived units are units of measurement derived from the seven base units specified by the International System of Units (SI).

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Standard gravity

The standard acceleration due to gravity (or standard acceleration of free fall), sometimes abbreviated as standard gravity, usually denoted by or, is the nominal gravitational acceleration of an object in a vacuum near the surface of the Earth.

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Tesla (unit)

The tesla (symbol T) is a derived unit of magnetic flux density (informally, magnetic field strength) in the International System of Units.

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Unit of measurement

A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity.

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Redirects here:

Conventional millimeter of mercury, Conventional millimetre of mercury, Micrometer of mercury, Micrometre of mercury, Millimeter of Mercury, Millitorr, Torr (unit).

References

[1] https://en.wikipedia.org/wiki/Torr

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