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2. Pound per square inch - Wikipedia

   en.wikipedia.org/wiki/Pound_per_square_inch

   For example, a bicycle tire pumped up to 65 psig in a local atmospheric pressure at sea level (14.7 psi) will have a pressure of 79.7 psia (14.7 psi + 65 psi). [ 2 ] [ 3 ] When gauge pressure is referenced to something other than ambient atmospheric pressure, then the unit is pound per square inch differential ( psid ).

3. Pressure measurement - Wikipedia

   en.wikipedia.org/wiki/Pressure_measurement

   A pressure gauge reading in psi (red scale) and kPa (black scale) ... 0.1 mPa is the lowest direct measurement of pressure that is possible with current technology ...

4. Orders of magnitude (pressure) - Wikipedia

   en.wikipedia.org/wiki/Orders_of_magnitude_(pressure)

   0.8 psi Blood pressure fluctuation (40 mmHg) between heartbeats for a typical healthy adult [44] [45] 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) [46] +9.8 kPa +1.4 psi Lung pressure that a typical person can exert (74 mmHg) [47 ...

5. Tire-pressure gauge - Wikipedia

   en.wikipedia.org/wiki/Tire-pressure_gauge

   A tire-pressure gauge displaying bar (outside) and psi (inside) Since tires are rated for specific loads at certain pressure, it is important to keep the pressure of the tire at the optimal amount. The precision of a typical mechanical gauge as shown is ±3 psi (21 kPa). Higher precision gauges with ±1 psi (6.9 kPa) uncertainty can also be ...

6. Pascal (unit) - Wikipedia

   en.wikipedia.org/wiki/Pascal_(unit)

   Convert mmHg to SI units as follows: 1 mmHg = 0.133 32 kPa. Hence the normal blood pressure in SI units is less than 16.0 kPa SBP and less than 10.7 kPa DBP. These values are similar to the pressure of water column of average human height; so pressure has to be measured on arm roughly at the level of the heart.

7. Inch of mercury - Wikipedia

   en.wikipedia.org/wiki/Inch_of_mercury

   In Imperial units: 1 inHg 60 °F = 0.489 771 psi, or 2.041 771 inHg 60 °F = 1 psi. Applications ... This can be seen on "boost gauges (forced induction) or vacuum ...