#755 MMHG TO ATM HOW TO#
How to avoid confusion in this diversity? Pressure gauges use different pressure units, which, in turn, may differ from those indicated in the technical specifications of the air conditioner itself. When installing the air conditioner, it is necessary to measure the pressure in the system. If the pressure is indicated in "technical atmospheres", then to convert the pressure to mm Hg. multiply the number of atmospheres by 760. One atmosphere (atm, atm) is equal to 760 mm Hg. When measuring high pressures, the unit often used is "atmosphere", which corresponds to normal atmospheric pressure.Accordingly, if the pressure is indicated in microns, then simply divide this number by a thousand and get the pressure in mmHg.
"vacuum workers" use the unit "micron of mercury", which is usually referred to as "μm". When measuring very low pressures, instead of mm Hg. Therefore, if the pressure is given in millimeters or just a number, then most likely it is mm Hg.
" to "mm" (sometimes millimeters are omitted). When converting pressure to pascals, keep in mind that when measuring blood pressure, in meteorological reports, as well as among vacuum engineers, the name “mm Hg” is often abbreviated.Millimeter of water column inch of mercury (inHg) One bar is equal to 105 N/m² or 106 dynes/cm² or 0.986923 atm. A sharp increase in pressure to large values \u200b\u200bcan lead to rupture of the ear tympanic membrane.īar (bar, bar) is approximately equal to one atmosphere. There may be visual disturbances in the form of the appearance of "flies" before the eyes, dizziness, nausea. As a result, the blood circulation of the body is disturbed. The tone of blood vessels increases, which leads to their spasms. Due to poor blood supply, a person may be disturbed by pain in the joints, numbness of the fingers.Īn increase in pressure leads to an excess of oxygen in the blood and tissues of the body. There are difficulties in the respiratory system. With a decrease in pressure, there is a lack of oxygen in the human blood, hypoxia of the cells of the body develops, and the heartbeat quickens. decrease or increase in pressure by at least 1 mmHg for three hours Even if the normal pressure is low compared to the ideal 760 mmHg, but is the norm for the area, people will.Ī person's well-being is affected by a sharp fluctuation in atmospheric pressure, i.e.
The effect of atmospheric pressure on peopleA person gets used to everything. And in the mountains of Tibet - 413 mm of mercury. For Vladivostok, the normal pressure is 761 mmHg. Petersburg, you can meet the ideal pressure rate of 760 mm Hg. This difference is explained by the fact that the city on the Neva is located lower than Moscow. Petersburg, normal pressure is 753-755 mmHg. So, at an altitude of five kilometers, the pressure indicators will be approximately two times less than at the bottom.ĭue to the location of Moscow on a hill, the pressure here is considered to be 747-748 mm of column. Atmospheric pressure standards in different regionsAs altitude increases, atmospheric pressure decreases. On a hill, the indicators may differ from ideal, but at the same time they will also be considered the norm. This figure is an indicator of normal atmospheric pressure.Ītmospheric pressure depends on the height of the area above sea level. Under these ideal conditions, a column of air presses on each area with the same force as a column of mercury 760 mm high. For normal atmospheric pressure, it is customary to take the air pressure at sea level at a latitude of 45 degrees at a temperature of 0 ° C.
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