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- Bar_(unit) abstract "The bar is a non-SI unit of pressure, defined by the IUPAC as exactly equal to 100,000 Pa. It is about equal to the atmospheric pressure on Earth at sea level, and since 1982 the IUPAC has recommended that the standard for atmospheric pressure should be harmonized to 100,000 Pa = 1 bar ≈ 750.0616827 Torr. The same definition is used in the compressor and the pneumatic tool industries (ISO 2787).The bar and the millibar were introduced by the British meteorologist William Napier Shaw in 1909, while he was the director of the Meteorological Office in London.Units derived from the bar are the megabar (symbol: Mbar), kilobar (symbol: kbar), decibar (symbol: dbar), centibar (symbol: cbar), and millibar (symbol: mbar or mb). These are not SI or cgs units, but they are accepted by the BIPM for use with the SI. The bar is legally recognized in countries of the European Union.The bar unit is considered deprecated by some entities. While the BIPM includes it under the class "Non-SI units accepted for use with the SI", the NIST includes it in the list of units to avoid and recommends the use of kilopascals (kPa) and megapascals (MPa) instead. The IAU also lists it under "Non-SI units and symbols whose continued use is deprecated."Bar(g) is a unit of gauge pressure, i.e., pressure in bars above ambient or atmospheric pressure; see absolute pressure and gauge pressure below.".
- Bar_(unit) thumbnail Aluminium_cylinder.jpg?width=300.
- Bar_(unit) wikiPageExternalLink table8.html.
- Bar_(unit) wikiPageID "362631".
- Bar_(unit) wikiPageRevisionID "599870176".
- Bar_(unit) hasPhotoCollection Bar_(unit).
- Bar_(unit) subject Category:Non-SI_metric_units.
- Bar_(unit) subject Category:Units_of_pressure.
- Bar_(unit) type Abstraction100002137.
- Bar_(unit) type DefiniteQuantity113576101.
- Bar_(unit) type Measure100033615.
- Bar_(unit) type MetricUnit113604275.
- Bar_(unit) type Non-SIMetricUnits.
- Bar_(unit) type UnitOfMeasurement113583724.
- Bar_(unit) type UnitsOfPressure.
- Bar_(unit) comment "The bar is a non-SI unit of pressure, defined by the IUPAC as exactly equal to 100,000 Pa. It is about equal to the atmospheric pressure on Earth at sea level, and since 1982 the IUPAC has recommended that the standard for atmospheric pressure should be harmonized to 100,000 Pa = 1 bar ≈ 750.0616827 Torr.".
- Bar_(unit) label "Bar (Einheit)".
- Bar_(unit) label "Bar (druk)".
- Bar_(unit) label "Bar (jednostka)".
- Bar_(unit) label "Bar (unidad de presión)".
- Bar_(unit) label "Bar (unidade)".
- Bar_(unit) label "Bar (unit)".
- Bar_(unit) label "Bar (unità di misura)".
- Bar_(unit) label "Bar (unité)".
- Bar_(unit) label "Бар (единица измерения)".
- Bar_(unit) label "بار".
- Bar_(unit) label "バール (単位)".
- Bar_(unit) label "巴".
- Bar_(unit) sameAs Bar_(jednotka).
- Bar_(unit) sameAs Bar_(Einheit).
- Bar_(unit) sameAs Μπαρ_(μονάδα_μέτρησης).
- Bar_(unit) sameAs Bar_(unidad_de_presión).
- Bar_(unit) sameAs Bar.
- Bar_(unit) sameAs Bar_(unité).
- Bar_(unit) sameAs Bar_(satuan).
- Bar_(unit) sameAs Bar_(unità_di_misura).
- Bar_(unit) sameAs バール_(単位).
- Bar_(unit) sameAs 바_(단위).
- Bar_(unit) sameAs Bar_(druk).
- Bar_(unit) sameAs Bar_(jednostka).
- Bar_(unit) sameAs Bar_(unidade).
- Bar_(unit) sameAs m.01_m3f.
- Bar_(unit) sameAs Q103510.
- Bar_(unit) sameAs Q103510.
- Bar_(unit) sameAs Bar_(unit).
- Bar_(unit) wasDerivedFrom Bar_(unit)?oldid=599870176.
- Bar_(unit) depiction Aluminium_cylinder.jpg.
- Bar_(unit) homepage table8.html.
- Bar_(unit) isPrimaryTopicOf Bar_(unit).
