^ Stultzman, Marcy Adderley, Philip Poelker, Matt (14 November 2006).The undisturbed gas concentration is only about 2x10^5 molecules/cm^3 during the lunar night, falling to perhaps 10^4 molecules/cm^3 during the lunar day. Journal of Vacuum Science and Technology. "Characteristics of a cryogenic extreme high-vacuum chamber". Archived from the original on 12 January 2012. "The ins and out of man-made and natural vacuums". Vapor pressure of water in a kernel of popcorn when the kernel ruptures Partial vapour pressure at the triple point of carbon dioxide Īir pressure in a heavy truck/bus tire relative to atmosphere ( gauge pressure) Threshold of pain for objects outside the human body hitting it Ĭarbon dioxide pressure in a champagne bottle Typical water pressure of a municipal water supply in the US Impact pressure of a fist punch (approximate) Īir pressure in an automobile tire relative to atmosphere ( gauge pressure) Īir pressure in a bicycle tire relative to atmosphere ( gauge pressure) Standard atmospheric pressure for Earth sea level (14.7 psi) Record low atmospheric pressure for typhoon/ hurricane ( Typhoon Tip in 1979) (only 86% of standard atmospheric pressure) Pressure inside vacuum cleaner at sea level on Earth (80% of standard atmospheric pressure) Minimum airplane cabin pressure and lowest pressure for normal breathing (at 2440 m) and also the limit stated by the Federal Aviation Regulation (FAR) Pressure inside an incandescent light bulb Pressure for paint exiting an HVLP (low-pressure) paint spray gun Level of long-duration blast overpressure (from a large-scale explosion) that would cause most buildings to collapse Ītmospheric pressure at the summit of Mount Everest High end of lung pressure, exertable without injury by a healthy person for brief times Systolic blood pressure in a healthy adult while at rest (< 120 mmHg) ( gauge pressure) High air pressure for human lung, measured for trumpet player making staccato high notes Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types.Pressure increase per meter of a water column ĭecrease in air pressure when going from Earth sea level to 1000 m elevation You can find metric conversion tables for SI units, as well as English units, currency, and other data. Thus a reading of 30 psig on a tire gauge represents an absolute pressure of 44.7 psi.Ĭ provides an online conversion calculator for all types of measurement units. If a pressure gauge is calibrated to read zero in space, then at sea level on Earth it would read 14.7 psi. Humans do not feel this pressure because internal pressure of liquid in their bodies matches the external pressure. At sea level, Earth's atmosphere actually exerts a pressure of 14.7 psi. By contrast, psia measures pressure relative to a vacuum (such as that in space). Psig (pound-force per square inch gauge) is a unit of pressure relative to the surrounding atmosphere. It is approximately equal to Earth's atmospheric pressure at sea level. It is sometimes used as a reference pressure or standard pressure. The standard atmosphere (symbol: atm) is a unit of pressure defined as 101325 Pa (1.01325 bar). Psig to atm, or enter any two units below: Enter two units to convert From: You can do the reverse unit conversion from
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