Convert millimeter water (4°C) to microbar
Please provide values below to convert millimeter water (4°C) [mmH2O] to microbar [µbar], or Convert microbar to millimeter water (4°C).
How to Convert Millimeter Water (4°c) to Microbar
1 mmH2O = 98.0638 µbar
Example: convert 15 mmH2O to µbar:
15 mmH2O = 15 × 98.0638 µbar = 1470.957 µbar
Millimeter Water (4°c) to Microbar Conversion Table
millimeter water (4°C) | microbar |
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Millimeter Water (4°c)
Millimeter water (4°C) is a unit of pressure measuring the height of a water column at 4 degrees Celsius that exerts a specific pressure.
History/Origin
The unit originated from the use of water columns to measure pressure, particularly in hydrology and medical applications, with standardization based on the density of water at 4°C.
Current Use
It is primarily used in medical and scientific contexts to measure low pressures, such as intracranial pressure, respiratory pressures, and in calibration of pressure sensors.
Microbar
A microbar (µbar) is a unit of pressure equal to one millionth of a bar, where 1 bar equals 100,000 pascals.
History/Origin
The microbar was introduced as a subunit of the bar to measure very low pressures, particularly in meteorology and vacuum technology, gaining usage in the 20th century as precision pressure measurements became more common.
Current Use
Today, the microbar is used primarily in meteorology for measuring atmospheric pressure variations and in scientific research requiring precise low-pressure measurements.