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Barometric pressure

From Bioblast


high-resolution terminology - matching measurements at high-resolution


Barometric pressure

Description

Barometric pressure, pb, is an important variable measured for calibration of oxygen sensors in solutions equilibrated with air. The atm-standard pressure (1 atm = 760 mmHg = 101.325 kPa) has been replaced by the SI standard pressure of 100 kPa. The partial pressure of oxygen, pO2, in air is a function of barometric pressure, which changes with altitude and locally with weather conditions. The partial oxygen pressure declines by 12 % to 14 % per 1,000 m up to 6,000 m altitude, and by 15 % to 17 % per 1,000 m between 6,000 and 9,000 m altitude. The O2k-Barometric Pressure Transducer is built into the Oroboros O2k as a basis for accurate air calibrations in high-resolution respirometry. For highest-level accuracy of calculation of oxygen pressure, it is recommended to compare at regular intervals the barometric pressure recording provided by the O2k with a calibrated barometric pressure recording at an identical time point and identical altitude. The concept of gas pressure or barometric pressure can be related to the generalized concept of isomorphic pressure.

Abbreviation: pb [Pa]

Reference: MiPNet06.03 POS-calibration-SOP, O2k-Barometric Pressure Transducer

SI unit: Pa = Jยทm-3
1 atm = 760 mmHg = 101.325 kPa


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Bioblast links: Concentration and pressure - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>
Concentration
ยป Volume
ยป Activity
ยป Concentration
ยป Density
ยป Mole
ยป Molar mass
Pressure
ยป Barometric pressure
ยป Chemiosmotic pressure
ยป Gas pressure
ยป Osmotic pressure
ยป Oxygen pressure
ยป pascal
ยป Pressure
Solubility = concentration/pressure
ยป Solubility
ยป Solubility factor
ยป Oxygen solubility
General
ยป Boltzmann constant
ยป Energy
ยป Force
ยป Gas constant
ยป Work
Related keyword lists
ยป Keywords: Oxygen signal
ยป Keywords: Normalization



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Bioblast links: Oxygen signal - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>



MitoPedia concepts: Ergodynamics 


MitoPedia methods: Respirometry 


MitoPedia O2k and high-resolution respirometry: O2k hardware, DatLab