The usual conditions are a) 105°C at atmospheric pressure or b) 80°C under vacuum equivalent to24inchesofmercury. lubrizol.com lubrizol.com 通常所用条件是:a)105℃标准大气压;或者 b)80℃真空条件下(24英寸水银柱)。 cn.lubrizol.com
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Definition: Millimeter of mercuryThe torr (symbol: Torr) or millimetre of mercury (mmHg) is a non-SI unit of pressure. It is the atmospheric pressure that supports a column of mercury 1 millimetre high. The unit is named after Evangelista Torricelli, Italian physicist and mathematician, for ...
a fall (as of rain or snow) sufficient to cover a surface or to fill a gauge to the depth of one inch a degree of atmospheric or other pressure sufficient to balance the weight of a column of liquid (such as mercury) one inch high in a barometer or manometer ...
There are also two other specialized units of pressure measurement in the SI system: the Bar, equal to 105 Pa and the Torr, equal to 133 Pa. Meteorologists, scientists who study weather patterns, use the millibar (mb) which is equal to 0.001 bars. At sea level, atmospheric pressure is...
Interestingly, this recording was made by an unnamed coal-miner, who had volunteered to be a weather observer, with the help of a special (mercury-thallium alloy) thermometer. Ohio Canva Ohio - All-time highest temperature: 113° F (Gallipolis on July 21, 1934) - All-time lowest ...
Stacker ranked the most expensive climate disasters by the billions since 1980 by the total cost of all damages, adjusted for inflation, based on 2021 data from the National Oceanic and Atmospheric Administration (NOAA). The list starts with Hurricane Sally, which caused $7.3 billion in damages ...
Definition: Millimeter of mercuryThe torr (symbol: Torr) or millimetre of mercury (mmHg) is a non-SI unit of pressure. It is the atmospheric pressure that supports a column of mercury 1 millimetre high. The unit is named after Evangelista Torricelli, Italian physicist and mathematician, for ...
The standard atmosphere (symbol: atm) is a unit of pressure defined as 101325 Pa (1.01325 bar). It is sometimes used as a reference pressure or standard pressure. It is approximately equal to Earth's atmospheric pressure at sea level.