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The torr (symbol: Torr) is a unit of pressure based on an absolute scale, defined as exactly 1/760 of a standard atmosphere (101325 Pa). Thus one torr is exactly 101325/760 pascals (≈ 133.32 Pa).
History, Measurement & Standards
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mercury pressure units one 760 unit symbol atmosphere pa defined millimetre 101325 exactly definition 133 torricelli used standard equal pascals
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Torr | British Gravitational System | 0.01933677 psi | 1.00 | infobox |
| Torr | Definition | .mw-parser-output .sfrac{white-space:nowrap}.mw-parser-output .sfrac.tion,.mw-parser-output .sfrac .tion{display:inline-block;vertical-align:-0.5em;font-size:85%;text-align:cent… | 1.00 | infobox |
| Torr | Named after | Evangelista Torricelli | 1.00 | infobox |
| Torr | SI derived units | 133.3224 Pa | 1.00 | infobox |
| Torr | Symbol | Torr | 1.00 | infobox |
| Torr | Unit of | pressure | 1.00 | infobox |
| millimetres of mercury or centimetres of water that depend on an assumed density of a fluid | instance of | Manometric units of pressureManometric units are units | 0.80 | text |
| an assumed acceleration due to gravity | instance of | Manometric units of pressureManometric units are units | 0.80 | text |
| Torr | related to Conversion factors | The | 0.60 | section |
| Torr | related to Conversion factors | Pa | 0.60 | section |
| Torr | related to Conversion factors | Therefore | 0.60 | section |
| Torr | related to history | Torricelli | 0.60 | section |
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