The examples and perspective in this section—US units are certainly not standard globally— may not represent a worldwide view of the subject. You may improve this section—US units are certainly not standard globally—, discuss the issue on the talk page, or create a new section—US units are certainly not standard globally—, as appropriate.(August 2018) (Learn how and when to remove this message)
Within firearms, chamber pressure is the pressure exerted by a cartridge case's outside walls on the inside of a firearm's chamber when the cartridge is fired. The SI unit for chamber pressure is the megapascal (MPa), while the American SAAMI uses the pound per square inch (psi, symbol lbf/in2) and the European CIP uses bar (1 bar is equal to 0.1 MPa).
Regardless of pressure unit used, the measuring procedure varies between CIP method, SAAMI method, and NATO EPVAT.[clarification needed] The chamber pressures are measured to different standards thus can not be directly compared. Chamber pressures have also historically been recorded in copper units of pressure (which for example can be denoted psi CUP, bar CUP, or MPa CUP) or lead units of pressure (LUP).[citation needed]
Within firearms, chamberpressure is the pressure exerted by a cartridge case's outside walls on the inside of a firearm's chamber when the cartridge...
A diving chamber is a vessel for human occupation, which may have an entrance that can be sealed to hold an internal pressure significantly higher than...
A pressure vessel is a container designed to hold gases or liquids at a pressure substantially different from the ambient pressure. Construction methods...
the chamber, the pressure of the propellants entering the combustion chamber must exceed the pressure inside the combustion chamber itself. This may be...
version was intended to operate at a chamberpressure of 250 bars (25 MPa; 3,600 psi). As of July 2022, chamberpressure had reached 300 bars in a test. In...
Atmospheric pressure, also known as air pressure or barometric pressure (after the barometer), is the pressure within the atmosphere of Earth. The standard...
Small arms ammunition pressure testing is used to establish standards for maximum average peak pressures of chamberings, as well as determining the safety...
casting process that is characterized by forcing molten metal under high pressure into a mold cavity. The mold cavity is created using two hardened tool...
: 445 Gauge pressure (also spelled gage pressure) is the pressure relative to the ambient pressure. Various units are used to express pressure. Some of these...
ballistics for the estimation of chamberpressures in firearms. These terms were adopted by convention to indicate that the pressure values were measured by copper...
Pressure measurement is the measurement of an applied force by a fluid (liquid or gas) on a surface. Pressure is typically measured in units of force...
chamber of either type of pump is increased (the diaphragm moving up), the pressure decreases, and fluid is drawn into the chamber. When the chamber pressure...
of 25 μm. The efficiency of the chamber can be further increased by the use of a high-pressure gas. Typically a pressure of 8-10 atmospheres can be used...
The broadly equivalent measure of rocket engine efficiency is chamberpressure/exit pressure, and this ratio can be over 2000 for the Space Shuttle Main...
expansion results in further relief of pressure, for example, by blowing crust material off the top of the chamber, the result is a very large gas explosion...
sickness (DCS) does not occur. With masks in place, the atmospheric pressure inside the chamber is then reduced to simulate altitudes of up to tens of thousands...
Sound pressure or acoustic pressure is the local pressure deviation from the ambient (average or equilibrium) atmospheric pressure, caused by a sound wave...
round compatible with CN03 and M256 as well as CN08, but the high chamberpressure of K279 quickly reduces the life of the barrel, so the manufacturer...
working pressure of an existing cartridge, and the resulting cartridges are typically different in some small manner to prevent them from being chambered in...
treatment in which an increase in barometric pressure over ambient pressure is employed increasing the partial pressures of all gases present in the compressed...
flexible low-pressure hose. On one side of the chamber is a flexible diaphragm to sense the pressure difference between the gas in the chamber on one side...
Global Information