Millibars (symbol: mb) are also commonly used when referencing atmospheric air pressure, where atmospheric pressure equals 1013.25 mbar (101.325 kPa). The International Bureau of Weights and Measures has specified the bar as a unit that authors should have the freedom to use but has chosen not to include the bar in the list of non-SI units accepted for use with SI. The term "bar" comes from the Greek word "baros," which means weight.Ĭurrent use: Although the bar is a metric unit of pressure, it is not accepted within the International System of Units (SI) and is even deprecated within certain fields. History/origin: The unit, bar, was introduced by Vilhelm Bjerknes, a Norwegian meteorologist who founded modern weather forecasting. It is equal to 0.987 atmospheres (101,325 Pa), the unit often used as a reference of standard pressure. Barĭefinition: A bar (symbol: bar) is a metric unit of pressure that is defined as exactly 100,000 pascals (symbol: Pa).
15 psi to bar free#
FREE Shipping on orders over 25 shipped by Amazon. Although the pascal is more widely used in scientific contexts, psi is more often used in everyday contexts, particularly in countries like the United States as well as others under the US customary or imperial systems of units. Pressure Gauge,Liquid Filled,2 1/2' face Dia,0-15 psi/bar/kpa,1/4' NPT Lower Mount, Polycarbonate Lens Window, Stainless Steel case. As such, the prototype pound at the time was known as the avoirdupois wool pound.Ĭurrent use: The psi is fairly widely used to measure numerous pressures, such as tire pressure, scuba tank pressure, natural gas pipeline pressure, among others. The system is believed to have come into use in England around 1300 and was used in the international wool trade. Get the best deals on 1/4 in Connection Diameter 15 psi (1 bar) Maximum Pressure Air Pressure Gauges when you shop the largest online selection at. It is based on the avoirdupois system, a system that uses weights in terms of the avoirdupois pound, which was standardized in 1959. History/origin: Pound-force per square inch is a unit that originated in the imperial and US customary systems of units. One psi is approximately 6,895 pascals (N/m 2). Condition: New: A brand-new, it may be delivered in non-retail packaging, oil, Low pressure gauge for fuel air oil gas water 50mm 0-15 PSI 0-1 bar 1/4 B. It is defined as the pressure that results when a force of one pound-force is applied to a one-square-inch area.
Example: convert 15 bar to psi: 15 bar 15 × 14.503773773 psi 217.556606595 psi. A working pressure setting of most pressure cookers is 1 standard atmosphere or 15 psi. Definition: A pound-force per square inch (symbol: psi) is an imperial and US customary unit of pressure based on avoirdupois units. 1 bar 14.503773773 psi 1 psi 0.0689475729 bar.
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