A millimetre of mercury is a manometric unit of pressure, formerly defined as the extra pressure generated by a column of mercury one millimetre high, ...
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What is a millimeter of mercury?
A millimetre of mercury is a manometric unit of pressure, formerly defined as the extra pressure generated by a column of mercury one millimetre high, and currently defined as exactly 133.322387415 pascals or exactly 133.322 pascals. It is denoted mmHg or mm Hg.
Why is blood pressure measured in millimeters of mercury?
Blood pressure is measured in millimeters of mercury (mm Hg) because the first instrument used to measure it was a mercury column. When a sphygmomanometer is used, a person sits with legs uncrossed and back supported.
What is mm and Hg in blood pressure?
Blood pressure is measured in units of millimeters of mercury (mmHg). The readings are always given in pairs, with the upper (systolic) value first, followed by the lower (diastolic) value. So someone who has a reading of 132/88 mmHg (often spoken “132 over 88”) has a. systolic blood pressure of 132 mmHg, and a.
Is 1 torr equal to 760 mmHg?
Definition of Torr? A torr is a non-SI unit for pressure e that is equal to 1/760 of the atmospheric pressure. Torr is equal to 1 mmHg in a barometer and 133.322368 in pascals. So, torr is equal to two units, i.e., torr in mmHg and torr in Pascal.
Mercury is a chemical element; it has symbol Hg and atomic number 80. It is also known as quicksilver and was formerly named hydrargyrum from the Greek ...
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Inch of mercury (inHg and ″Hg) is a non-SI unit of measurement for pressure. It is used for barometric pressure in weather reports, refrigeration and ...
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 ...
This category identifies units of pressure. Wikimedia Commons has media related to Units of pressure.
Millimetre of mercury. P. Pan amalgamation · Patio process · Polarography · List of countries by mercury production. R. Raseśvara · Red mercury · Mercury relay ...
Pressure is not one of the seven fundamental quantities of the SI, therefore mmHg is a derived unit, as it measures a derived quantity.
It is the simplest organomercury compound. Methylmercury is extremely toxic, and its derivatives are the major source of organic mercury for humans. It is a ...
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millimetre of mercury. manometric unit of pressure. mmHg; mm Hg ... wurvoc.org measure ID · millimetre_of_mercury. 0 references. Sitelinks. Wikipedia(39 entries).
A centimetre or millimetre of water are less commonly used measures of pressure based on the pressure head of water. Contents. 1 Centimetre of water ...