This is a tabulated listing of the orders of magnitude in relation to pressure expressed in pascals. psi values, prefixed with +
and -
, denote values relative to Earth's sea level standard atmospheric pressure (psig); otherwise, psia is assumed.
Magnitude | Pressure | lbf/in2 or (dB) | Item |
---|---|---|---|
10−17 Pa | 10 aPa | Pressure in outer space in intergalactic voids | |
10−15 Pa | 1–10 fPa | Pressure in outer space between stars in the Milky Way | |
10−12 Pa | < 1 pPa | Lowest pressure obtained in laboratory conditions | |
10−10 Pa | |||
40 pPa | Atmosphere of the Moon at lunar day, very approximately (4×10−11 Pa)[citation needed] | ||
10−10 Pa | < 100 pPa | Extreme-high vacuum | |
100 pPa | Atmosphere of Mercury, very approximately (1×10−10 Pa) | ||
300 pPa | Atmosphere of the Moon at lunar night, very approximately (3×10−10 Pa) | ||
10−9 Pa | < 1 nPa | Vacuum expected in the beam pipe of the Large Hadron Collider's ATLAS experiment (operates at a pressure of 1 nPa to 10 nPa) | |
~1 nPa | Approximate solar wind pressure at Earth's distance from the Sun (variable)[citation needed] | ||
10−8 Pa | 10 nPa | Pressure inside a vacuum chamber for laser cooling of atoms (magneto-optical trap) | |
10–700 nPa | Atmospheric pressure in low Earth orbit, around 500 km altitude | ||
10−7 Pa | 100 nPa | Highest pressure still considered ultra-high vacuum | |
10−6 Pa | 0.1 - 10 μPa | Pressure inside a cathode ray tube (approximate) | |
1 μPa | Reference pressure for sound in water | ||
1 μPa | Pressure inside a vacuum tube (very approximate)[citation needed] | ||
10−5 Pa | 10 μPa | Radiation pressure of sunlight on a perfectly reflecting surface at the distance of the Earth. | |
20 μPa | 0 (dB) | Reference pressure for sound in air | |
±20 μPa | 0 dB | Threshold of human hearing | |
10−4 Pa | |||
10−3 Pa | 1–100 mPa | Vacuum pressures used for molecular distillation | |
10−2 Pa | |||
10−1 Pa | 100 mPa | Upper limit of (high vacuum) | |
~200 mPa | Atmospheric pressure on Pluto (1988 figure; very roughly) | ||
1 Pa | 1 Pa | Pressure exerted by a US dollar bill resting flat on a surface | |
1 Pa | Upper limit of molecular distillation, where the mean free path of molecules is larger than the equipment size[citation needed] | ||
10 Pa | 10 Pa | Pressure increase per millimeter of a water column at Earth mean sea level | |
10 Pa | Pressure due to direct impact of a (gentle breeze) (~9 mph or 14 km/h) | ||
86 Pa | Pressure from the weight of a U.S. penny lying flat | ||
102 Pa | 100 Pa | Pressure due to direct impact of a (strong breeze) (~28 mph or 45 km/h) | |
120 Pa | Pressure from the weight of a U.S. quarter lying flat | ||
133 Pa | 1 torr ≈ 1 (mmHg) | ||
±200 Pa | ~140 dB | Threshold of pain pressure level for sound where prolonged exposure may lead to hearing loss[citation needed] | |
±300 Pa | ±0.043 psi | Lung air pressure difference moving the normal breaths of a person (only 0.3% of standard atmospheric pressure) | |
400–900 Pa | 0.06–0.13 psi | Atmospheric pressure on Mars, < 1% of atmospheric sea-level pressure on Earth | |
610 Pa | 0.089 psi | Partial vapor pressure at the triple point of water (611.657 Pa) | |
103 Pa | 1–10 kPa | Typical explosion peak overpressure needed to break glass windows (approximate) | |
2 kPa | Pressure of popping popcorn (very approximate) | ||
2.6 kPa | 0.38 psi | (Pressure at which water boils) at room temperature (22 °C) (20 mmHg) | |
5 kPa | 0.8 psi | Blood pressure fluctuation (40 mmHg) between heartbeats for a typical healthy adult | |
6.3 kPa | 0.9 psi | (Pressure where water boils) at normal human body temperature (37 °C), the pressure below which humans absolutely cannot survive (Armstrong limit) | |
+9.8 kPa | +1.4 psi | Lung pressure that a typical person can exert (74 mmHg) | |
104 Pa | 10 kPa | 1.5 psi | Pressure increase per meter of a water column |
10 kPa | 1.5 psi | Decrease in air pressure when going from Earth sea level to 1000 m elevation[citation needed] | |
+13 kPa | +1.9 psi | High air pressure for human lung, measured for trumpet player making staccato high notes | |
< +16 kPa | +2.3 psi | Systolic blood pressure in a healthy adult while at rest (< 120 mmHg) (gauge pressure) | |
+19.3 kPa | +2.8 psi | High end of lung pressure, exertable without injury by a healthy person for brief times[citation needed] | |
+34 kPa | +5 psi | Level of long-duration blast overpressure (from a large-scale explosion) that would cause most buildings to collapse | |
34 kPa | Atmospheric pressure at the summit of Mount Everest | ||
+70 kPa | +10 psi | Pressure for paint exiting an HVLP (low-pressure) paint spray gun | |
70 kPa | Pressure inside an incandescent light bulb | ||
75 kPa | Minimum airplane cabin pressure and lowest pressure for normal breathing (at 2440 m) and also the limit stated by the Federal Aviation Regulation (FAR) | ||
80 kPa | 12 psi | Pressure inside vacuum cleaner at sea level on Earth (80% of standard atmospheric pressure)[citation needed] | |
87 kPa | 13 psi | (Record low atmospheric pressure) for typhoon/hurricane (Typhoon Tip in 1979) (only 86% of standard atmospheric pressure) | |
105 Pa | 100 kPa | 15 psi | 1 bar (14.5 psi), approximately equal to the weight of one kilogram (1 kilopond) acting on one square centimeter |
101.325 kPa | 15 psi | Standard atmospheric pressure for Earth sea level (14.7 psi) | |
150 to > 550 kPa | 25 to > 80 psi | Impact pressure of a fist punch (approximate)[citation needed] | |
+180 to +250 kPa | +26 to +36 psi | Air pressure in an automobile tire relative to atmosphere (gauge pressure)[citation needed] | |
+210 to +900 kPa | +30 to +130 psi | Air pressure in a bicycle tire relative to atmosphere (gauge pressure) | |
300 kPa | 50 psi | Water pressure of a garden hose | |
300 to 700 kPa | 50–100 psi | Typical water pressure of a municipal water supply in the US | |
358 to 524 kPa | 52-76 psi | Threshold of pain for objects outside the human body hitting it | |
400 to 600 kPa | 60–90 psi | Carbon dioxide pressure in a champagne bottle | |
520 kPa | 75 psi | Partial vapour pressure at the triple point of carbon dioxide | |
+690 to +830 kPa | +100 to +120 psi | Air pressure in a heavy truck/bus tire relative to atmosphere (gauge pressure)[citation needed] | |
800 kPa | 120 psi | Vapor pressure of water in a kernel of popcorn when the kernel ruptures | |
106 Pa | 0.8–2 MPa | 120–290 psi | Pressure used in boilers of steam locomotives[citation needed] |
1.1 MPa | 162 psi | Pressure of an average human bite[citation needed] | |
2.8–8.3 MPa | 400–1,200 psi | Pressure of carbon dioxide propellant in a paintball gun | |
5 MPa | 700 psi | Water pressure of the output of a coin-operated car wash spray nozzle | |
5 MPa | 700 psi | Military submarine max. rated pressure (est.) of Seawolf-class nuclear submarine, at depth of 500 m | |
10-21 MPa | 1,500–3,000 psi | Chamber pressure of a high-powered (non-carbon dioxide) air gun | |
6.9–27 MPa | 1,000–4,000 psi | Water spray pressure used by pressure washers | |
9.2 MPa | 1,300 psi | Atmosphere of Venus | |
107 Pa | > 10 MPa | > 1,500 psi | Pressure exerted by a 45 kg person wearing stiletto heels when a heel hits the floor |
15.5 Mpa | 2,250 psi | Primary coolant loop of a pressurized water reactor | |
20 MPa | 2,900 psi | Typical pressure used for hydrogenolysis reactions | |
21 MPa | 3,000 psi | Pressure of a typical aluminium scuba tank of pressurized air (210 bar) | |
21 MPa | 3,000 psi | Ballistic pressure exerted as high-power bullet strikes a solid bulletproof object[citation needed] | |
22 MPa | 3,200 psi | (Critical pressure) of water | |
28 MPa | 4,100 psi | Overpressure caused by the bomb explosion during the Oklahoma City bombing | |
40 MPa | 5,800 psi | Water pressure at the depth of the wreck of the Titanic | |
69 MPa | 10,000 psi | Water pressure withstood by the DSV Shinkai 6500 in visiting ocean depths of > 6500 meters | |
70 to 280 MPa | 10,000 to 40,000 psi | Maximal chamber pressure during a pistol firing | |
108 Pa | 110 MPa | 16,000 psi | Pressure at bottom of Mariana Trench, about 11 km below ocean surface (1100 bar) |
100 to 300 MPa | 15,000 to 44,000 psi | Pressure inside reactor for the synthesis of high-pressure polyethylene (HPPE) | |
250 MPa | 36,000 psi | Record diesel engine common rail fuel system pressure | |
400 MPa | 58,000 psi | Chamber pressure of late 1910s .50 Browning machine gun discharge[citation needed] | |
240–620 MPa | 35,000–90,000 psi | Water pressure used in a water jet cutter | |
109 Pa | 1 GPa | Extremely high-pressure chemical reactors (10 kbar)[citation needed] | |
1.5 GPa | Diamond melts using a 3 kJ laser without turning into graphite first | ||
1.5 GPa | 220,000 psi | tensile strength of Inconel 625 according to Aircraft metal strength tables and the Mil-Hdbk-5 | |
5.8 GPa | 840,000 psi | Ultimate tensile strength of the polymer Zylon | |
1010 Pa | 10 GPa | Pressure at which octaoxygen forms at room temperature (100,000 bar) | |
18 GPa | Pressure needed for the first commercially successful synthesis of diamond | ||
24 to 110 GPa | Stability range of enstatite in its perovskite-structured polymorph, possibly the most common mineral inside the Earth[citation needed] | ||
40 GPa | Quantum-mechanical electron degeneracy pressure in a block of copper | ||
48 GPa | Detonation pressure of pure CL-20, the most powerful high explosive in mass production | ||
69 GPa | 10,000,000 psi | Highest water jet pressure attained in research lab | |
96 GPa | Pressure at which (metallic oxygen) forms (960,000 bar) | ||
1011 Pa | 100 GPa | Theoretical tensile strength of a carbon nanotube (CNT) | |
130 GPa | Ultimate tensile strength of monolayer graphene | ||
360 GPa | Pressure inside Earth's inner core (3.64 million bar) | ||
495 GPa | Lower bound at which metallic hydrogen theoretically forms | ||
> 600 GPa | Pressure attainable with a diamond anvil cell | ||
1012 Pa | 5 TPa | Pressure generated by the National Ignition Facility fusion reactor | |
1013 Pa | 10 TPa | solid matter changes to the metastable inner-shell molecular state | |
32.9 TPa | Pressure at which metallic helium theoretically forms | ||
1014 Pa | 100 TPa | Pressure generated by the extremely high-pressure laser implosion plasmas generator. | |
208.4 TPa | Pressure at which metallic neon theoretically forms (the highest metallization pressure for any element) | ||
540 TPa | Pressure inside an "Ivy Mike"-like nuclear bomb detonation (5.3 billion bar) | ||
1015 Pa | 6.5 PPa | Pressure inside a W80 nuclear warhead detonation (64 billion bar) | |
1016 Pa | 25 PPa | Pressure inside Sun's core (250 billion bar) | |
1023 Pa | 100 EPa - 100 YPa | Pressure inside the core of a white dwarf at the Chandrasekhar limit | |
1032 Pa | 3.2-160 QPa | Pressure range inside a neutron star | |
1035 Pa | Approximate pressure at the center of a proton | ||
... | ... | ... | ... |
10113 Pa | 4.6×10113 Pa | 6.7×10109 psi | The Planck pressure (4.63×10108 bar) |
References
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10^-19 torr
- Calculated: 10−19 torr × 133 Pa/torr = 10−17 Pa
- Calculated: 10−17 torr × 133 Pa/torr = 10−15 Pa
- Thompson, W. (1977). "Characteristics of a cryogenic extreme high-vacuum chamber". Journal of Vacuum Science and Technology. 14 (1): 643–645. Bibcode:1977JVST...14..643T. doi:10.1116/1.569168.
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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.
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~10^-15 bar
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we expect pressures below 10^-9 Pa
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ambient pressure is in the range of 10^-10 to 5x10^-8 Torr.
- Calculated: 10−10 Torr × 133.3 Pa/Torr = 1.3×10−8 Pa. 5×10−8 Torr × 133.3 Pa/Torr = 6.7×10−6 Pa.
- American Vacuum Society. "Glossary". AVS Reference Guide. Archived from the original on 2006-03-04. Retrieved 2011-12-28.
- Calculated unit conversion: 1e-9 torr * 101325/760 Pa/torr = 1.33e-7 Pa
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{{cite web}}
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operating pressures in the range 0.1–0.001 Pa
- Calculated unit conversion: 1e-3 torr * 101325/760 Pa/torr = 0.133 Pa
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deepest layers reach pressures of no more than a few microbars
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10 kPa - the pressure below 1 m of water
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- Exact calculation: P = 1/2 * density of air * (wind speed)^2. wind speed = 9 mph * 0.447 (m/s)/mph = 4.02 m/s. P = 1/2 * (1.25 kg/m^3) * (4.0 m/s)^2 = 10.1 Pa.
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- Exact calculation: P = 1/2 * density of air * (wind speed)^2. wind speed = 28.3 mph * 0.447 (m/s)/mph = 12.7 m/s. P = 1/2 * (1.25 kg/m^3) * (12.7 m/s)^2 = 101 Pa.
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a normal inspiratory breath of say 500 ml in an adult requires a distending pressure of under 3cm H2O
- Calculated: 3 cm H2O * 98.0 Pa/cm H2O = 294 Pa = 3e2 Pa
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variable from 4.0 to 8.7 mb
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Iverson (1968) gives the range of breaking pressures as 1-10 kPa
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force ... which turns out to be 0.22 psi
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2.6 kPa
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- Calculated as the difference between a typical systolic pressure of < 120mm Hg and diastolic pressure of < 80mm Hg.
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paint exiting the gun at 10 PSI
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Road tires typically require 80 to 130 psi, mountain tires 30 to 50 psi and hybrid tires 50 to 70 psi.
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A typical garden hose dispenses water at about 50 PSI, and a coin-operated car wash provides about 700 PSI.
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A typical municipal water supply runs at between 50 and 100 PSI
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Fischer7 reported pressure pain thresholds of 3.7 kg/cm2 and 5.4 kg/cm2 in normal adult females.
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5.185 bar ... uncertainty ... 0.005 bar
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Co2 pressure output can range from 400 psi up to 1200 psi
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a normal operating depth of "greater than 800 feet", ... it may be assumed that the ... depth ... is roughly double the official figure
- Calculated: assume depth of 2x800 ft = 1600 ft. 1600 ft * 0.3048 m/ft = 488 m. Pressure at 488 m = density * g * depth * area = 1025 kg/m^3 * 9.81 m/s^2 * 488 m * 1 m^2 = 4.90e6 Pa. 4.90e6 Pa * 1.45e-4 psi/Pa = 711 psi.
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range from about 1,000 p.s.i. to 4,000 or more
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when you get your tank filled it will be filled to 3000 psi
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Pressure at a depth of 6,500 m reaches around 680 atmospheres
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.45 Colt ... 14,000 ... 9.mm Luger +P ... 38,500
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a pump that delivers up to 90,000 PSI ... pumps that deliver 35,000 PSI to 55,000 PSI
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Substance ... GPa ... CL-20 ... 48.23
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the highest pressure jet that we generated in the MS&T [Missouri University of Science and Technology] Laboratories was at around 10 million psi.
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363.850 GPa
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- Monserrat, Bartomeu; Drummond, N. D.; Pickard, Chris J.; Needs, R. J. (2014). "Electron-Phonon Coupling and the Metallization of Solid Helium at Terapascal Pressures". Physical Review Letters. 112 (5): 055504. arXiv:1311.1005. Bibcode:2014PhRvL.112e5504M. doi:10.1103/PhysRevLett.112.055504. PMID 24580611. S2CID 29848984.
- "Extremely high-pressure generation and compression with laser implosion plasmas".
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Mike... Ivy... radiation pressures are 73 and 1400 megabars ... respectively ... Mike ... 5.3 x 10^9 bars ... Ivy ... 6.4 x 10^10 bars
- Calculated: ablation pressure = 5.3e9 bar * 1.01325e5 Pa/bar = 5.44e14 Pa
- Calculated: ablation pressure = 6.4e10 bar * 1.01325e5 Pa/bar = 6.48e14 Pa
- Williams, David R. (September 1, 2004). "Sun Fact Sheet". NASA. Retrieved 2008-01-23.
- Camenzind, Max (2007). Compact objects in astrophysics. Astronomy and Astrophysics Library. Bibcode:2007coaw.book.....C. doi:10.1007/978-3-540-49912-1. ISBN 978-3-540-25770-7.
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ignored (help) - Ozel, Feryal; Freire, Paulo (2016). "Masses, Radii, and the Equation of State of Neutron Stars". Annu. Rev. Astron. Astrophys. 54 (1): 401–440. arXiv:1603.02698. Bibcode:2016ARA&A..54..401O. doi:10.1146/annurev-astro-081915-023322. S2CID 119226325.
- V. D. Burkert; L. Elouadrhiri; F. X. Girod (16 May 2018). "The pressure distribution inside the proton". Nature. 557 (7705): 396–399. Bibcode:2018Natur.557..396B. doi:10.1038/s41586-018-0060-z. OSTI 1438388. PMID 29769668. S2CID 21724781.
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