Convert millimeter water (4°C) to atmosphere technical
Please provide values below to convert millimeter water (4°C) [mmH2O] to atmosphere technical [at], or Convert atmosphere technical to millimeter water (4°C).
How to Convert Millimeter Water (4°c) to Atmosphere Technical
1 mmH2O = 9.9997246766225e-05 at
Example: convert 15 mmH2O to at:
15 mmH2O = 15 × 9.9997246766225e-05 at = 0.00149995870149337 at
Millimeter Water (4°c) to Atmosphere Technical Conversion Table
| millimeter water (4°C) | atmosphere technical |
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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.
Atmosphere Technical
The atmosphere technical (at) is a unit of pressure defined as exactly 101,325 pascals, representing the average atmospheric pressure at sea level.
History/Origin
The atmosphere technical was established as a standard unit of pressure in the early 20th century to facilitate scientific and engineering calculations involving atmospheric pressure, aligning with the international standard atmosphere (ISA).
Current Use
It is primarily used in scientific, meteorological, and engineering contexts to quantify atmospheric pressure, especially in fields requiring standardized pressure measurements at sea level.